First attempt at converting "sig" to "activity" for v3

Merge remote-tracking branch 'origin/main'
2026-09-24 08:14:32 +00:00 · 2026-09-24 07:14:43 +01:00 · 2026-09-24 07:09:37 +01:00 · 2026-09-24 06:38:58 +01:00 · 2026-09-24 06:38:39 +01:00 · 2026-09-24 06:37:58 +01:00
130 changed files with 2130 additions and 1600 deletions
@@ -1,4 +1,4 @@
-# ![Spothole](/static/img/logo.png)
+# ![Spothole](https://git.ianrenton.com/ian/spothole/raw/branch/main/static/img/logo.png)

 Spothole is a utility to aggregate "spots" from amateur radio DX clusters and xOTA spotting sites, and provide an open
 JSON API as well as a website to browse the data, and its own telnet server for integration with desktop loggers.
@@ -17,42 +17,25 @@ individual data source presents its data.

 Spothole itself is also open source, Public Domain licenced code that anyone can take and modify.

-Supported data sources include DX Clusters, the Reverse Beacon Network (RBN), the APRS Internet Service (APRS-IS), POTA,
-SOTA, WWFF, GMA, WWBOTA, HEMA, Parks 'n' Peaks, ZLOTA, WOTA, BOTA, LLOTA, WWTOTA, Tiles on the Air, the UK Packet
-Repeater Network, NG3K, and any site based on the xOTA software by nischu. It also integrates with QRZ.com and HamQTH,
-retrieves solar data from various sources, provides information about upcoming contests, and more.
-
-You can read more about Spothole on [the "About" page of the main server instance](https://spothole.app/about).
+You can read more about Spothole on [the "Help" pages of the main server instance](https://spothole.app/help).

 ![Screenshot](/images/screenshot2.png)

-![Screenshot](/images/screenshot3.png)
-
 ## Accessing the public version

 You can access the public version's web interface at [https://spothole.app](https://spothole.app), and
 see [https://spothole.app/apidocs](https://spothole.app/apidocs) for the API details.

-This is a Progressive Web App, so you can also "install" it to your Android or iOS device by accessing it in Chrome or
-Safari respectively, and following the menu-driven process for installing PWAs.
-
 You are more than welcome to use the data and the API that Spothole provides to power your own software, to run your own
-Spothole server, or to modify it in any way. More details can be found in the following sections:
+Spothole server, or to modify it in any way. More details can be found
+in [the "Help" pages of the main server instance](https://spothole.app/help).

-* [Embedding Spothole in another website](docs/embedding.md)
-* [Writing your own client](docs/clients.md)
-* [Running your own copy](docs/running.md)
-    * [nginx reverse proxy configuration](docs/nginx.md)
-    * [systemd service file](docs/systemd.md)
-    * [Running in Docker](docs/docker.md)
-    * [Use of multiple cluster logins](docs/multicluster.md)
-* [Modifying the source code](docs/modifying.md)
-
-![Screenshot](/images/screenshot4.png)
+![Screenshot](/images/screenshot3.png)

 ## Thanks

-[Spothole's "About" page](https://spothole.app/about) contains the full details of the thanks I owe to the various
+[Spothole's "Thanks" page](https://spothole.app/help/thanks) contains the full details of the thanks I owe to the
+various
 programme teams, software library providers, bug fixers etc. The extra detail below contains the extra detail of
 specific files in this repository which are not all my own work and may be subject to other licences.

@@ -130,25 +130,25 @@ spot_providers:
    url: "wss://39c3.totawatch.de/api/spot/live"
    # For the "XOTA" provider, an activity must be set manually here because xOTA is a generic backend for xOTA
    # programmes and so different URLs potentially provide different programmes.
-    sig: "Toilets"
+    activity: "Toilets"
    # For Toilets on the Air, we prefix the activity references (T-01 etc) with some characters that define the
    # conference: C3, EH or HOPE - so we can look up the correct locations in our database, because each conference
    # starts from T-01 but refers to a toilet in a different building (or continent!)
-    sig_ref_prefix: "C3"
+    activity_ref_prefix: "C3"

  - class: "XOTA"
    name: "EH23 TOTA"
    enabled: false
    url: "wss://eh23.totawatch.de/api/spot/live"
-    sig: "Toilets"
-    sig_ref_prefix: "EH"
+    activity: "Toilets"
+    activity_ref_prefix: "EH"

  - class: "XOTA"
    name: "HOPE26 TOTA"
    enabled: false
    url: "wss://hope-26.totawatch.de/api/spot/live"
-    sig: "Toilets"
-    sig_ref_prefix: "HOPE"
+    activity: "Toilets"
+    activity_ref_prefix: "HOPE"


 # Alert providers to use. Same setup as the spot providers list above.
@@ -218,7 +218,7 @@ static_data_providers:

 # Activity reference data providers to use. These allow Spothole to download, for example, the WWFF directory that
 # maps WWFF park IDs to their name and location.
-sig_ref_data_providers:
+activity_ref_data_providers:
  - class: "POTA"
    enabled: true

@@ -27,7 +27,7 @@ def get_activity_ref_info(activity_name, ref_id):
    ref_id = ref_id.replace(" ", "-")

    # Prepare the object to be returned
-    activity_ref = ActivityRef(sig=activity_name, id=ref_id)
+    activity_ref = ActivityRef(activity=activity_name, id=ref_id)

    # We can always get the reference type and the icon from the activity itself
    activity = get_activity_by_name(activity_name)
@@ -52,11 +52,11 @@ def get_activity_ref_info(activity_name, ref_id):
        if activity_name.upper() == ActivityName.DTMBA:
            ref_id = ref_id.replace("-", "").replace(" ", "")

-        ### NO DATA ACTIVITIES ###
+        ### NO REFERENCE ACTIVITIES ###
        #
-        # If the activity is HEMA or BIWOTA, we have no way to either generate useful data or look it up on a
+        # If the activity doesn't have references, we have no way to either generate useful data or look it up on a
        # reference list, so just skip the lookup here.
-        if activity_name.upper() == ActivityName.HEMA or activity_name.upper() == ActivityName.BIWOTA:
+        if not activity.has_refs:
            return activity_ref

        ### PROGRAMMATIC DATA GENERATION INSTEAD OF LOOKUPS ###
@@ -141,11 +141,11 @@ def get_activity_ref_info(activity_name, ref_id):

 def populate_missing_activity_ref_info(activity_ref):
    """Look up details of an activity reference (e.g. POTA park) such as name, lat/lon, and grid. Takes in an
-    activity_ref object which must at minimum have a "sig" and an "id". The rest of the object will be populated
+    activity_ref object which must at minimum have an "activity" and an "id". The rest of the object will be populated
    and returned. Any data currently in the object will be kept, only missing data in the object will be populated
    if it can be determined."""

-    lookup_data = get_activity_ref_info(activity_ref.sig, activity_ref.id)
+    lookup_data = get_activity_ref_info(activity_ref.activity, activity_ref.id)

    if lookup_data:
        # Copy new activity ref data into existing object where data was previously missing
@@ -2,7 +2,7 @@ from core.config import SERVER_OWNER_CALLSIGN
 from data.band import Band

 # General software
-SOFTWARE_VERSION = "2.2-pre"
+SOFTWARE_VERSION = "3.0-pre"

 # HTTP headers used for spot providers that use HTTP
 HTTP_HEADERS = {"User-Agent": f"Spothole v{SOFTWARE_VERSION} (operated by {SERVER_OWNER_CALLSIGN})"}
@@ -15,7 +15,7 @@ class DataProviders:
        self.alert_providers = []
        self.solar_condition_providers = []
        self.static_data_providers = []
-        self.sig_ref_data_providers = []
+        self.activity_ref_data_providers = []
        self.callsign_data_providers = []
        self._startup_timers = []

@@ -28,8 +28,8 @@ class DataProviders:
            self.solar_condition_providers.append(create_provider_from_config("providers.solarconditions", entry))
        for entry in config.get("static_data_providers", []):
            self.static_data_providers.append(create_provider_from_config("providers.staticdata", entry))
-        for entry in config.get("sig_ref_data_providers", []):
-            self.sig_ref_data_providers.append(create_provider_from_config("providers.activityrefdata", entry))
+        for entry in config.get("activity_ref_data_providers", []):
+            self.activity_ref_data_providers.append(create_provider_from_config("providers.activityrefdata", entry))
        for entry in config.get("callsign_data_providers", []):
            self.callsign_data_providers.append(create_provider_from_config("providers.callsigndata", entry))

@@ -54,7 +54,7 @@ class DataProviders:
                25.0,
                lambda: self.start_providers(self.solar_condition_providers, "solar condition"),
            ),
-            threading.Timer(30.0, lambda: self.start_providers(self.sig_ref_data_providers, "activity ref data")),
+            threading.Timer(30.0, lambda: self.start_providers(self.activity_ref_data_providers, "activity ref data")),
        ]
        for t in self._startup_timers:
            t.daemon = True
@@ -72,7 +72,7 @@ class DataProviders:
                self.spot_providers
                + self.alert_providers
                + self.solar_condition_providers
-                + self.sig_ref_data_providers
+                + self.activity_ref_data_providers
                + self.static_data_providers
                + self.callsign_data_providers
            )
@@ -77,7 +77,7 @@ class LocationSourceForSpot(str, Enum):
    """Where the location data came from in a spot."""

    SPOT = "SPOT"
-    SIG_REF_LOOKUP = "SIG REF LOOKUP"
+    ACTIVITY_REF_LOOKUP = "ACTIVITY REF LOOKUP"
    GRID = "GRID"
    HOME_QTH = "HOME QTH"
    DXCC = "DXCC"
@@ -163,6 +163,7 @@ class ActivityRefType(str, Enum):
    BUILDING = "BUILDING"
    REGION = "REGION"
    GRID = "GRID"
+    SATELLITE = "SATELLITE"
    TOILET = "TOILET"


@@ -111,9 +111,9 @@ class StatusReporter:
            }
            for p in DATA_PROVIDERS.static_data_providers
        ]
-        DATA_STORE.status.get()["sig_ref_data_providers"] = [
+        DATA_STORE.status.get()["activity_ref_data_providers"] = [
            {
-                "sig_name": p.sig_name,
+                "activity_name": p.activity_name,
                "enabled": p.enabled,
                "status": p.status,
                "last_updated": p.last_update_time.replace(tzinfo=pytz.UTC).timestamp()
@@ -121,7 +121,7 @@ class StatusReporter:
                else 0,
                "reference_count": p.reference_count,
            }
-            for p in DATA_PROVIDERS.sig_ref_data_providers
+            for p in DATA_PROVIDERS.activity_ref_data_providers
        ]
        DATA_STORE.status.get()["callsign_data_providers"] = [
            {
@@ -156,3 +156,13 @@ def get_callsign_object_from_pyhamtools_callinfo(callsign, callinfo):
    except (KeyError, ValueError):
        # Unknown callsign, can't look anything up, return a Callsign object with basic data so that gets cached
        return Callsign(call=callsign)
+
+
+def decode_telnet_bytes(data: bytes) -> str:
+    """Decode a line of text received from a telnet connection, which might be UTF-8 or Latin-1 depending on the
+    whims of the server owner."""
+
+    try:
+        return data.decode("utf-8")
+    except UnicodeDecodeError:
+        return data.decode("latin-1")
@@ -5,7 +5,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.CONTEST: Activity(
        name=ActivityName.CONTEST,
        description="Contest",
-        sig_type=ActivityType.TRADITIONAL,
+        activity_type=ActivityType.TRADITIONAL,
        has_refs=False,
        refs_globally_unique=False,
        # No sensible way to determine *which* contest, but if we set comment_names=["CONTEST"] then at least
@@ -17,21 +17,23 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DXPEDITION: Activity(
        name=ActivityName.DXPEDITION,
        description="Radio expedition to a remote location",
-        sig_type=ActivityType.TRADITIONAL,
+        activity_type=ActivityType.TRADITIONAL,
        has_refs=False,
        refs_globally_unique=False,
-        # DXpedition stations are never really spotted with "DXpedition" in the comments, but we can assign
-        # this activity to a spot other ways.
-        comment_names=[],
+        comment_names=["DXPEDITION"],
        icon="fa-book-atlas",
        alerts_possible=True,
    ),
    ActivityName.SATELLITE: Activity(
        name=ActivityName.SATELLITE,
        description="Amateur Radio Satellite",
-        sig_type=ActivityType.TRADITIONAL,
-        has_refs=False,
-        refs_globally_unique=False,
+        activity_type=ActivityType.TRADITIONAL,
+        # Satellite "references" are the names of the satellites themselves. This is not an exhaustive list, it just
+        # matches some of the most commonly used amateur radio satellites so they can be picked out of spot comments.
+        has_refs=True,
+        refs_globally_unique=True,
+        ref_type=ActivityRefType.SATELLITE,
+        ref_regex=r"ISS|AO-(?:7|27|73|91|95|123)|QO-100|QO100|QO 100|RS-44|SO-50",
        comment_names=[],
        icon="fa-satellite",
        alerts_possible=True,
@@ -39,7 +41,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.EME: Activity(
        name=ActivityName.EME,
        description="Earth-Moon-Earth (Moonbounce)",
-        sig_type=ActivityType.TRADITIONAL,
+        activity_type=ActivityType.TRADITIONAL,
        has_refs=False,
        refs_globally_unique=False,
        comment_names=[],
@@ -48,7 +50,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.AERONAUTICAL_MOBILE: Activity(
        name=ActivityName.AERONAUTICAL_MOBILE,
        description="Aeronautical Mobile",
-        sig_type=ActivityType.TRADITIONAL,
+        activity_type=ActivityType.TRADITIONAL,
        has_refs=False,
        refs_globally_unique=False,
        # Don't pick /AM out of comments, spot.py will handle picking it out of the callsign
@@ -58,7 +60,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.MARITIME_MOBILE: Activity(
        name=ActivityName.MARITIME_MOBILE,
        description="Maritime Mobile",
-        sig_type=ActivityType.TRADITIONAL,
+        activity_type=ActivityType.TRADITIONAL,
        has_refs=False,
        refs_globally_unique=False,
        # Don't pick /MM out of comments, spot.py will handle picking it out of the callsign
@@ -68,7 +70,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.QRP: Activity(
        name=ActivityName.QRP,
        description="Low power",
-        sig_type=ActivityType.TRADITIONAL,
+        activity_type=ActivityType.TRADITIONAL,
        has_refs=False,
        refs_globally_unique=False,
        comment_names=["QRP"],
@@ -78,7 +80,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.POTA: Activity(
        name=ActivityName.POTA,
        description="Parks on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.PARK,
@@ -90,7 +92,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.SOTA: Activity(
        name=ActivityName.SOTA,
        description="Summits on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.SUMMIT,
@@ -102,7 +104,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.WWFF: Activity(
        name=ActivityName.WWFF,
        description="World Wide Flora & Fauna",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.PARK,
@@ -114,7 +116,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.GMA: Activity(
        name=ActivityName.GMA,
        description="Global Mountain Activity",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.SUMMIT,
@@ -125,7 +127,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.WWBOTA: Activity(
        name=ActivityName.WWBOTA,
        description="Worldwide Bunkers on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.BUNKER,
@@ -136,7 +138,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.HEMA: Activity(
        name=ActivityName.HEMA,
        description="HuMPs Excluding Marilyns Award",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.SUMMIT,
@@ -148,7 +150,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.IOTA: Activity(
        name=ActivityName.IOTA,
        description="Islands on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.ISLAND,
@@ -159,7 +161,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.GMA_ISLANDS: Activity(
        name=ActivityName.GMA_ISLANDS,
        description="Global Mountain Activity - Islands",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.ISLAND,
@@ -170,7 +172,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.ARLHS: Activity(
        name=ActivityName.ARLHS,
        description="Amateur Radio Lighthouse Society",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.LIGHTHOUSE,
@@ -181,7 +183,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.ILLW: Activity(
        name=ActivityName.ILLW,
        description="International Lighthouse & Lightship Weekend",
-        sig_type=ActivityType.EVENT,
+        activity_type=ActivityType.EVENT,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.LIGHTHOUSE,
@@ -192,7 +194,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.MOTA: Activity(
        name=ActivityName.MOTA,
        description="Mills on the Air",
-        sig_type=ActivityType.EVENT,
+        activity_type=ActivityType.EVENT,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.MILL,
@@ -203,7 +205,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.SIOTA: Activity(
        name=ActivityName.SIOTA,
        description="Silos on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.SILO,
@@ -215,7 +217,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.WCA: Activity(
        name=ActivityName.WCA,
        description="World Castles Award",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.CASTLE,
@@ -226,7 +228,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.ZLOTA: Activity(
        name=ActivityName.ZLOTA,
        description="New Zealand on the Air",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=None,
@@ -239,7 +241,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.WOTA: Activity(
        name=ActivityName.WOTA,
        description="Wainwrights on the Air",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.SUMMIT,
@@ -252,7 +254,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.BOTA: Activity(
        name=ActivityName.BOTA,
        description="Beaches on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.BEACH,
@@ -263,7 +265,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.KRMNPA: Activity(
        name=ActivityName.KRMNPA,
        description="Keith Roget Memorial National Parks Award",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.PARK,
@@ -276,7 +278,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.SANPCPA: Activity(
        name=ActivityName.SANPCPA,
        description="South Australian National Parks and Conservation Parks Award",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.PARK,
@@ -289,7 +291,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.LLOTA: Activity(
        name=ActivityName.LLOTA,
        description="Lagos y Lagunas on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.LAKE,
@@ -301,7 +303,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.TOWERS: Activity(
        name=ActivityName.TOWERS,
        description="Towers on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.TOWER,
@@ -312,7 +314,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.TILES: Activity(
        name=ActivityName.TILES,
        description="Tiles on the Air",
-        sig_type=ActivityType.ADVENTURE,
+        activity_type=ActivityType.ADVENTURE,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.GRID,
@@ -323,7 +325,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.RADAR_RALLY: Activity(
        name=ActivityName.RADAR_RALLY,
        description="RaDAR Rally",
-        sig_type=ActivityType.EVENT,
+        activity_type=ActivityType.EVENT,
        has_refs=False,
        refs_globally_unique=False,
        comment_names=["RaDAR"],
@@ -332,7 +334,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.WAB: Activity(
        name=ActivityName.WAB,
        description="Worked All Britain",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.GRID,
@@ -344,7 +346,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.WAI: Activity(
        name=ActivityName.WAI,
        description="Worked All Ireland",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.GRID,
@@ -356,7 +358,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DMF: Activity(
        name=ActivityName.DMF,
        description="Diplôme des Moulins de France",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.MILL,
@@ -367,7 +369,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DME: Activity(
        name=ActivityName.DME,
        description="Diploma Municipios de España",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.TOWN,
@@ -379,7 +381,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.FEA: Activity(
        name=ActivityName.FEA,
        description="Diploma Faros de España",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.LIGHTHOUSE,
@@ -394,7 +396,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DMUE: Activity(
        name=ActivityName.DMUE,
        description="Diploma Museos de España",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.BUILDING,
@@ -406,7 +408,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DMVE: Activity(
        name=ActivityName.DMVE,
        description="Diploma Monumentos y Vestigios de España",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.BUILDING,
@@ -418,7 +420,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DCE: Activity(
        name=ActivityName.DCE,
        description="Diploma Castillos de España",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.CASTLE,
@@ -430,7 +432,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DEFE: Activity(
        name=ActivityName.DEFE,
        description="Diploma Estaciones de Ferrocarril de España",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.BUILDING,
@@ -442,7 +444,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.DTMBA: Activity(
        name=ActivityName.DTMBA,
        description="Diploma Teatri Musei e Belle Arti",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.BUILDING,
@@ -454,7 +456,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.BIWOTA: Activity(
        name=ActivityName.BIWOTA,
        description="British Inland Waterways on the Air",
-        sig_type=ActivityType.EVENT,
+        activity_type=ActivityType.EVENT,
        has_refs=False,
        refs_globally_unique=False,
        ref_type=ActivityRefType.WATERWAY,
@@ -465,7 +467,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.COTA: Activity(
        name=ActivityName.COTA,
        description="Castles on the Air",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.CASTLE,
@@ -477,7 +479,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.PGA: Activity(
        name=ActivityName.PGA,
        description="Polish Gmina Award",
-        sig_type=ActivityType.REGIONAL,
+        activity_type=ActivityType.REGIONAL,
        has_refs=True,
        refs_globally_unique=False,
        ref_type=ActivityRefType.REGION,
@@ -489,7 +491,7 @@ ACTIVITIES: dict[ActivityName, Activity] = {
    ActivityName.TOILETS: Activity(
        name=ActivityName.TOILETS,
        description="Toilets on the Air",
-        sig_type=ActivityType.EVENT,
+        activity_type=ActivityType.EVENT,
        has_refs=True,
        refs_globally_unique=True,
        ref_type=ActivityRefType.TOILET,
@@ -5,22 +5,20 @@ from core.enums import ActivityName, ActivityRefType, ActivityType

@dataclass
 class Activity:
-    """Data class that defines an Activity (formerly referred to as a "Special Interest Group" or "SIG", a term
-    which is still used for the `sig` field name in the API for backwards compatibility). Each contains a name and
-    a longer form description. They also contain comment_names which attempts to separate out the way people might
-    refer to it in cluster comments from how it is referred to in the UI & API. (For example, "TOTA" in cluster
-    spot comments almost always means Towers on the Air, but no single programme is referred to in the UI as "TOTA"
-    as it's ambiguous between Towers, Toilets and Tiles. And while Beaches got the name "BOTA" first, "BOTA" spots
-    are much more likely to be bunkers.) Finally, there is a ref_regex which provides a regular expression to
-    match what references (such as parks and summits) look like for that programme."""
+    """Data class that defines an Activity. Each contains a name and a longer form description. They also contain
+    comment_names which attempts to separate out the way people might refer to it in cluster comments from how it is
+    referred to in the UI & API. (For example, "TOTA" in cluster spot comments almost always means Towers on the Air,
+    but no single programme is referred to in the UI as "TOTA" as it's ambiguous between Towers, Toilets and Tiles.
+    And while Beaches got the name "BOTA" first, "BOTA" spots are much more likely to be bunkers.) Finally, there is a
+    ref_regex which provides a regular expression to match what references (such as parks and summits) look like for
+    that programme."""

    # Activity name as used in the UI and API, e.g. "Towers"
    name: ActivityName
    # Description, e.g. "Towers on the Air"
    description: str
    # Type, either Worldwide, Regional or Event. Used for sorting in the web UI.
-    # Note: this field is still named "sig_type" in the API for backwards compatibility.
-    sig_type: ActivityType
+    activity_type: ActivityType
    # Whether this activity has a fixed set of references (e.g. parks) with some sort of ID to "activate"
    has_refs: bool
    # Identifies that the activity's reference ID structure defined by its regex is unique across all programmes and
@@ -8,8 +8,8 @@ class ActivityRef:
    """Data class that defines an Activity "info" or reference. As well as the basic reference ID we include a
    name and a lookup URL."""

-    # Activity that this reference is in, e.g. "POTA". Still named "sig" for backwards compatibility with the API.
-    sig: str
+    # Activity that this reference is in, e.g. "POTA".
+    activity: str
    # Reference ID, e.g. "GB-0001".
    id: str | None = None
    # Name of the reference, e.g. "Null Country Park", if known.
@@ -5,6 +5,7 @@ from dataclasses import dataclass, field
 from datetime import datetime, timedelta

 import pytz
+from pyhamtools.locator import latlong_to_locator, locator_to_latlong

 from core.activity_lookup_helper import populate_missing_activity_ref_info
 from core.activity_utils import get_icon_for_activity
@@ -40,6 +41,11 @@ class Alert:
    dx_cq_zone: int | None = None
    # ITU zone of the DX operator
    dx_itu_zone: int | None = None
+    # Maidenhead grid locator for the DX. This could be from a geographical reference e.g. POTA or grid.
+    dx_grid: str | None = None
+    # Latitude & longitude of the DX, in degrees. This could be from a geographical reference e.g. POTA or grid.
+    dx_latitude: float | None = None
+    dx_longitude: float | None = None

    # General alert info

@@ -60,11 +66,10 @@ class Alert:

    # Activity info

-    # Activity (e.g. outdoor activity programme such as POTA). Still named "sig" for API backwards compatibility.
-    sig: str | None = None
-    # Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO. Still named
-    # "sig_refs" for API backwards compatibility.
-    sig_refs: list = field(default_factory=list)
+    # Activity (e.g. outdoor activity programme such as POTA).
+    activity: str | None = None
+    # Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO.
+    activity_refs: list = field(default_factory=list)

    # Timing info

@@ -108,8 +113,7 @@ class Alert:
            if self.received_time and not self.received_time_iso:
                self.received_time_iso = datetime.fromtimestamp(self.received_time, pytz.UTC).isoformat()

-            # DX country, continent, zones etc. from callsign. CQ/ITU zone are better looked up with a location but we don't
-            # have a real location for alerts.
+            # DX country, continent, zones etc. from callsign.
            if self.dx_calls and self.dx_calls[0]:
                call_info = get_call_info(self.dx_calls[0], credentials)
                if self.dx_calls and self.dx_calls[0] and not self.dx_country:
@@ -125,17 +129,40 @@ class Alert:
                if self.dx_dxcc_id and not self.dx_flag:
                    self.dx_flag = get_flag_for_dxcc(self.dx_dxcc_id)

-            # Fetch activity data. In case a particular API doesn't provide a full set of name, lat, lon & grid for a
-            # reference in its initial call, we use this code to populate the rest of the data. This includes working
-            # out grid refs from WAB and WAI, which count as an activity even though there's no real lookup, just maths
-            if self.sig_refs:
-                for activity_ref in self.sig_refs:
-                    populate_missing_activity_ref_info(activity_ref)
+            # Fetch activity data, and set a real position if we can get one.
+            if self.activity_refs:
+                for activity_ref in self.activity_refs:
+                    activity_ref = populate_missing_activity_ref_info(activity_ref)
+                    # If the alert itself doesn't have location yet, but the activity ref does, extract it
+                    if activity_ref.grid and not self.dx_grid:
+                        self.dx_grid = activity_ref.grid
+                    if (
+                        activity_ref.latitude
+                        and not self.dx_latitude
+                        and activity_ref.longitude
+                        and not self.dx_longitude
+                    ):
+                        self.dx_latitude = activity_ref.latitude
+                        self.dx_longitude = activity_ref.longitude

            # If the spot itself doesn't have an activity yet, but we have at least one activity reference, take that
            # reference's activity and apply it to the whole spot.
-            if self.sig_refs and self.sig_refs[0] and not self.sig:
-                self.sig = self.sig_refs[0].sig
+            if self.activity_refs and self.activity_refs[0] and not self.activity:
+                self.activity = self.activity_refs[0].activity
+
+            # DX Grid to lat/lon and vice versa in case one is missing
+            if self.dx_grid and (not self.dx_latitude or not self.dx_longitude):
+                try:
+                    ll = locator_to_latlong(self.dx_grid)
+                    self.dx_latitude = ll[0]
+                    self.dx_longitude = ll[1]
+                except Exception:
+                    logger.debug("Invalid grid received for spot", exc_info=True)
+            if self.dx_latitude and self.dx_longitude and not self.dx_grid:
+                try:
+                    self.dx_grid = latlong_to_locator(self.dx_latitude, self.dx_longitude, 8)
+                except Exception:
+                    logger.debug("Invalid lat/lon received for spot", exc_info=True)

            # Create an ID based on the source and source ID if possible, as these guaranee uniqueness. If there is no
            # source ID, use a combination of callsign and start time. Excluding things like the comment here allows for
@@ -154,7 +181,7 @@ class Alert:

            # Icon for the alert should be the icon of its activity if known, otherwise a radio tower
            self.icon = "fa-tower-cell"
-            if self.sig and (activity_icon := get_icon_for_activity(self.sig)):
+            if self.activity and (activity_icon := get_icon_for_activity(self.activity)):
                self.icon = activity_icon

        except Exception:
@@ -76,8 +76,8 @@ class Spot:
    # DX Location source. Indicates how accurate the location might be.
    dx_location_source: LocationSourceForSpot | None = None
    # DX Location good. Indicates that the software thinks the location data is good enough to plot on a map. This is
-    # true if the location source is "SPOT", "SIG REF LOOKUP" or "GRID", or if the location source is "HOME QTH" and
-    # the DX callsign doesn't have a suffix like /P. (Location source retains "SIG" wording for API compatibility.)
+    # true if the location source is "SPOT", "ACTIVITY REF LOOKUP" or "GRID", or if the location source is "HOME QTH"
+    # and the DX callsign doesn't have a suffix like /P.
    dx_location_good: bool = False

    # DE (Spotter) info
@@ -125,11 +125,10 @@ class Spot:

    # Activity info

-    # Activity (e.g. outdoor activity programme such as POTA). Still named "sig" for API backwards compatibility.
-    sig: str | None = None
-    # Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO. Still named
-    # "sig_refs" for API backwards compatibility.
-    sig_refs: list = field(default_factory=list)
+    # Activity (e.g. outdoor activity programme such as POTA).
+    activity: str | None = None
+    # Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO.
+    activity_refs: list = field(default_factory=list)

    # Timing info

@@ -159,12 +158,12 @@ class Spot:
    def __post_init__(self):
        """Normalise fields that don't survive a plain dict to Spot conversion. This is used in the "add spot" API
        endpoint where the client is submitting JSON, and we want to recreate a full Spot object, including nested
-        objects such as the sig_refs list.."""
+        objects such as the activity_refs list.."""

-        if self.sig_refs:
-            self.sig_refs = [
+        if self.activity_refs:
+            self.activity_refs = [
                activity_ref if isinstance(activity_ref, ActivityRef) else ActivityRef(**activity_ref)
-                for activity_ref in self.sig_refs
+                for activity_ref in self.activity_refs
            ]

    def infer_missing(self, credentials=None):
@@ -270,18 +269,20 @@ class Spot:
                self.dx_location_source = LocationSourceForSpot.SPOT

            # Set the top-level activity if it is missing but we have at least one activity ref.
-            if not self.sig and self.sig_refs:
-                self.sig = self.sig_refs[0].sig.upper()
+            if not self.activity and self.activity_refs:
+                self.activity = self.activity_refs[0].activity.upper()

            # See if we already have an activity reference, but the comment looks like it contains more for the same
            # activity. This should catch e.g. POTA comments like "2-fer: GB-0001 GB-0002".
-            if self.comment and self.sig_refs and self.sig_refs[0].sig:
-                activity = self.sig_refs[0].sig.upper()
+            if self.comment and self.activity_refs and self.activity_refs[0].activity:
+                activity = self.activity_refs[0].activity.upper()
                regex = get_ref_regex_for_activity(activity)
                if regex:
                    all_comment_ref_matches = re.finditer(r"(^|\W)(" + regex + r")($|\W)", self.comment, re.IGNORECASE)
                    for ref_match in all_comment_ref_matches:
-                        self._append_activity_ref_if_missing(ActivityRef(id=ref_match.group(2).upper(), sig=activity))
+                        self._append_activity_ref_if_missing(
+                            ActivityRef(id=ref_match.group(2).upper(), activity=activity)
+                        )

            # See if the comment looks like it contains any activities (and optionally activity references) that we
            # can add to the spot. This should catch cluster spot comments like "POTA GB-0001 WWFF GFF-0001" and e.g.
@@ -292,11 +293,11 @@ class Spot:
                    # First of all, if we haven't got an activity for this spot set yet, now we have. This covers
                    # things like cluster spots where the comment is just "POTA".
                    found_activity = get_activity_name_from_comment_name(activity_match.group(2))
-                    if not self.sig:
-                        self.sig = found_activity
+                    if not self.activity:
+                        self.activity = found_activity

                    # Now look to see if that activity name was followed by something that looks like a reference ID
-                    # for that activity. If so, add that to the sig_refs list for this spot.
+                    # for that activity. If so, add that to the activity_refs list for this spot.
                    found_activity_info = get_activity_by_name(found_activity)
                    if found_activity_info and found_activity_info.has_refs and found_activity_info.ref_regex:
                        ref_matches = re.finditer(
@@ -306,7 +307,7 @@ class Spot:
                        )
                        for ref_match in ref_matches:
                            self._append_activity_ref_if_missing(
-                                ActivityRef(id=ref_match.group(3).upper(), sig=found_activity)
+                                ActivityRef(id=ref_match.group(3).upper(), activity=found_activity)
                            )

            # See if the comment looks like it contains any activity references *without* the corresponding activity
@@ -322,17 +323,17 @@ class Spot:
                            # First of all, if we haven't got an activity for this spot set yet, now we have. This
                            # covers things like cluster spots where the comment is just "OHFF-1234", now we know
                            # it's WWFF.
-                            if not self.sig:
-                                self.sig = activity.name
+                            if not self.activity:
+                                self.activity = activity.name
                            self._append_activity_ref_if_missing(
-                                ActivityRef(id=ref_match.group(2).upper(), sig=activity.name)
+                                ActivityRef(id=ref_match.group(2).upper(), activity=activity.name)
                            )

            # Fetch activity data. In case a particular API doesn't provide a full set of name, lat, lon & grid for a
            # reference in its initial call, we use this code to populate the rest of the data. This includes working
            # out grid refs from WAB and WAI, which count as an activity even though there's no real lookup, just maths
-            if self.sig_refs:
-                for activity_ref in self.sig_refs:
+            if self.activity_refs:
+                for activity_ref in self.activity_refs:
                    activity_ref = populate_missing_activity_ref_info(activity_ref)
                    # If the spot itself doesn't have location yet, but the activity ref does, extract it
                    if activity_ref.grid and not self.dx_grid:
@@ -345,15 +346,15 @@ class Spot:
                    ):
                        self.dx_latitude = activity_ref.latitude
                        self.dx_longitude = activity_ref.longitude
-                        if self.sig in (ActivityName.WAB, ActivityName.WAI, ActivityName.TILES):
+                        if self.activity in (ActivityName.WAB, ActivityName.WAI, ActivityName.TILES):
                            self.dx_location_source = LocationSourceForSpot.GRID
                        else:
-                            self.dx_location_source = LocationSourceForSpot.SIG_REF_LOOKUP
+                            self.dx_location_source = LocationSourceForSpot.ACTIVITY_REF_LOOKUP

            # If the spot itself doesn't have an activity yet, but we have at least one activity reference, take that
            # reference's activity and apply it to the whole spot.
-            if self.sig_refs and not self.sig:
-                self.sig = self.sig_refs[0].sig
+            if self.activity_refs and not self.activity:
+                self.activity = self.activity_refs[0].activity

            # Parse "de_grid<prop_mode>dx_grid" structures from the comment, e.g. "JN61ES(ES)JM56XT" or "JO02GQ<>KN17LG".
            # These are common on cluster spots and can provide grid references in preference to e.g. QRZ lookup, as well as
@@ -406,32 +407,32 @@ class Spot:
                    self.dx_location_source = LocationSourceForSpot.GRID

            # Set activities based on propagation mode
-            if self.propagation_mode == "Satellite" and not self.sig:
-                self.sig = ActivityName.SATELLITE
-            if self.propagation_mode == "Earth-Moon-Earth" and not self.sig:
-                self.sig = ActivityName.EME
+            if self.propagation_mode == "Satellite" and not self.activity:
+                self.activity = ActivityName.SATELLITE
+            if self.propagation_mode == "Earth-Moon-Earth" and not self.activity:
+                self.activity = ActivityName.EME

            # Set activities based on the DX callsign suffix
-            if self.dx_call and not self.sig:
+            if self.dx_call and not self.activity:
                if self.dx_call.upper().endswith(ActivityName.AERONAUTICAL_MOBILE):
-                    self.sig = ActivityName.AERONAUTICAL_MOBILE
+                    self.activity = ActivityName.AERONAUTICAL_MOBILE
                elif self.dx_call.upper().endswith(ActivityName.MARITIME_MOBILE):
-                    self.sig = ActivityName.MARITIME_MOBILE
+                    self.activity = ActivityName.MARITIME_MOBILE

            # Alright, now let's get really fancy. Check if the DX callsign matches one taking part in a currently
            # running DXpedition which we know from the alerts list.
-            if self.dx_call and not self.sig:
+            if self.dx_call and not self.activity:
                now = datetime.now(pytz.UTC).timestamp()
                for alert in DATA_STORE.alerts.values():
                    if (
-                        alert.sig == ActivityName.DXPEDITION
+                        alert.activity == ActivityName.DXPEDITION
                        and alert.dx_calls
                        and alert.start_time
                        and alert.end_time
                        and alert.start_time < now < alert.end_time
                        and self.dx_call.upper() in [c.upper() for c in alert.dx_calls if c]
                    ):
-                        self.sig = ActivityName.DXPEDITION
+                        self.activity = ActivityName.DXPEDITION
                        break

            # DX Grid to lat/lon and vice versa in case one is missing
@@ -476,10 +477,10 @@ class Spot:

            # Determine a "QTH" string. If we have an activity ref, pick the first one and turn it into a suitable
            # string, otherwise see what they have set on an online lookup service.
-            if self.sig_refs:
-                qth = self.sig_refs[0].id
-                if self.sig_refs[0].name:
-                    qth += f" {self.sig_refs[0].name}"
+            if self.activity_refs:
+                qth = self.activity_refs[0].id
+                if self.activity_refs[0].name:
+                    qth += f" {self.activity_refs[0].name}"
                self.dx_qth = qth
            else:
                self.dx_qth = dx_call_info.qth
@@ -512,7 +513,7 @@ class Spot:
                and self.dx_longitude
                and (
                    self.dx_location_source == LocationSourceForSpot.SPOT
-                    or self.dx_location_source == LocationSourceForSpot.SIG_REF_LOOKUP
+                    or self.dx_location_source == LocationSourceForSpot.ACTIVITY_REF_LOOKUP
                    or self.dx_location_source == LocationSourceForSpot.GRID
                    or (self.dx_location_source == LocationSourceForSpot.HOME_QTH and "/" not in (self.dx_call or ""))
                )
@@ -532,7 +533,7 @@ class Spot:

            # Icon for the spot should be the icon of its activity if known, otherwise a radio tower
            self.icon = "fa-tower-cell"
-            if self.sig and (activity_icon := get_icon_for_activity(self.sig)):
+            if self.activity and (activity_icon := get_icon_for_activity(self.activity)):
                self.icon = activity_icon

        except Exception:
@@ -547,13 +548,13 @@ class Spot:
        """Append an activity ref to the list, so long as it's not already there."""

        new_activity_ref.id = new_activity_ref.id.strip().upper()
-        new_activity_ref.sig = new_activity_ref.sig.strip().upper()
+        new_activity_ref.activity = new_activity_ref.activity.strip().upper()
        if new_activity_ref.id == "":
            return
-        for activity_ref in self.sig_refs:
-            if activity_ref.id == new_activity_ref.id and activity_ref.sig == new_activity_ref.sig:
+        for activity_ref in self.activity_refs:
+            if activity_ref.id == new_activity_ref.id and activity_ref.activity == new_activity_ref.activity:
                return
-        self.sig_refs.append(new_activity_ref)
+        self.activity_refs.append(new_activity_ref)

    def expired(self):
        """Decide if this spot has expired (in which case it should not be added to the system in the first place, and not
@@ -1,39 +0,0 @@
-## Writing your own client
-
-One of the key strengths of Spothole is that the API is well-defined and open to anyone to use. This means you can build
-your own software that uses data from Spothole.
-
-As well as the main API endpoints to fetch spots and alerts, with various possible query parameters, there are also
-Server-Sent Events (SSE) API endpoints to receive a live feed, plus various utility lookup endpoints for things like
-callsign and park data.
-
-Various approaches exist to writing your own client, but in general:
-
-* Refer to the API docs. These are built on an OpenAPI definition file (`/static/apidocs/openapi.yml`), which you can
-  automatically use to generate a client skeleton using various software.
-* Call the main "spots" or "alerts" API endpoints to get the data you want. For example, your app could call
-  `https://spothole.app/api/v2/spots` once every few minutes. Apply filters if necessary.
-* Call the "options" API to get an idea of which bands, modes etc. the server knows about. You might want to do that
-  first before calling the spots/alerts APIs, to allow you to populate your filters correctly.
-* Refer to the provided HTML/JS interface for a reference on different approaches. For example, the "alerts"/"upcoming"
-  page simply query the main spot API on a timer, whereas the spots, map and bands pages combine this approach with
-  using the Server-Sent Events (SSE) endpoint to update live.
-* Let me know if you get stuck, I'm happy to help.
-
-Please don't hammer the API with an unnecessarily high request rate. For example, Spothole only queries the POTA API
-once every two minutes, so if your client is interested in POTA data there's no need to poll Spothole any more often
-than that.
-
-If you absolutely must be informed within seconds of a spot arriving in Spothole, please use the SSE endpoints instead,
-e.g. `https://spothole.app/api/v2/spots/stream`.
-
-If you want to handle different types of spot or alert differently within your client, please consider making a single
-request to the Spothole API to retrieve all the data, then filtering on your side. For example, call
-`https://spothole.app/api/v2/spots?sig=POTA,SOTA` rather than making two separate calls to
-`https://spothole.app/api/v2/spots?sig=POTA` and `https://spothole.app/api/v2/spots?sig=SOTA`.
-
-Remember, here at Spothole Inc. we offer an industry-standard "five nines" uptime on our server, with our own unique
-twist: we don't tell you which side of the decimal point the nines start! (Translation: This is a hobby project.
-`spothole.app` runs on the same server as my blog and other stuff. It might go down without warning. By all means base
-your own project on data from the main server if you like, but if you want any control over reliability and downtime,
-please run your own copy instead.)
@@ -1,41 +0,0 @@
-## Embedding Spothole in another website
-
-You can embed Spothole's web interface in another website, e.g. for use as part of a ham radio custom dashboard.
-
-URL parameters can be used to trigger an "embedded" mode which hides the headers, footers and settings. In this mode,
-you provide configuration for the various filter and display options via additional URL parameters. Any settings that
-the user has set for Spothole are ignored. This is so that the embedding site can select, for example, their choice of
-dark mode or activity filters, which will not impact how Spothole appears when the user accesses it directly. Effectively, it
-becomes separate to their normal Spothole settings.
-
-Setting `embedded` to true is important for the rest of the settings to be applied; otherwise, the user's defaults will
-be used in preference to the URL params.
-
-These are supplied with the URL to the page you want to embed, for example for an embedded version of the band map in
-dark mode, use `https://spothole.app/bands?embedded=true&dark-mode=true`. For an embedded version of the main spots/home
-page in the system light/dark mode, use `https://spothole.app/?embedded=true`. For dark mode showing 70cm TOTA spots
-only, use `https://spothole.app/?embedded=true&dark-mode=true&sig=TOTA&band=70cm`. Providing no URL params causes the
-page to be loaded in the normal way it would when accessed directly in the user's browser.
-
-The supported parameters are as follows. Generally these match the equivalent parameters in the real Spothole API, where
-a mapping exists.
-
-| Name             | Allowed Values          | Default | Example                 | Description                                                                                                                                                           |
-|------------------|-------------------------|---------|-------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `embedded`       | `true`, `false`         | `false` | `?embedded=true`        | Enables embedded mode.                                                                                                                                                |
-| `color_scheme`   | `light`, `dark`, `auto` | `auto`  | `?color_scheme=dark`    | Forces light or dark mode in preference to the operating system default.                                                                                              |
-| `time_zone`      | `UTC`, `local`          | `UTC`   | `?time_zone=local`      | Sets times to be in UTC or local time.                                                                                                                                |
-| `limit`          | 10, 25, 50, 100         | 50      | `?limit=50`             | Sets the number of spots that will be displayed on the main spots page                                                                                                |
-| `limit`          | 25, 50, 100, 200, 500   | 100     | `?limit=100`            | Sets the number of alerts that will be displayed on the alerts page                                                                                                   |
-| `max_age`        | 300, 600, 1800, 3600    | 1800    | `?max_age=1800`         | Sets the maximum age of spots displayed on the map and bands pages, in seconds.                                                                                       |
-| `band`           | Comma-separated list    | (all)   | `?band=20m,40m`         | Sets the list of bands that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface.         |
-| `sig`            | Comma-separated list    | (all)   | `?sig=POTA,SOTA,NO_SIG` | Sets the list of activities that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface.    |
-| `source`         | Comma-separated list    | (all)   | `?source=Cluster`       | Sets the list of sources that will be shown on any spot or alert pages. Available options match the labels of the buttons in the standard web interface.              |
-| `mode_type`      | Comma-separated list    | (all)   | `?mode_type=PHONE,CW`   | Sets the list of mode types that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface.    |
-| `dx_continent`   | Comma-separated list    | (all)   | `?dx_continent=NA,SA`   | Sets the list of DX Continents that will be shown on any spot or alert pages. Available options match the labels of the buttons in the standard web interface.        |
-| `de_continent`   | Comma-separated list    | (all)   | `?de_continent=EU`      | Sets the list of DE Continents that will be shown on the spots, bands and map pages. Available options match the labels of the buttons in the standard web interface. |
-| `map-center-lat` | Numeric (decimal)       | (auto)  | `?map-center-lat=51.5`  | Sets the initial latitude of the map centre on the map page. If omitted, the map auto-fits to the loaded spots.                                                       |
-| `map-center-lon` | Numeric (decimal)       | (auto)  | `?map-center-lon=-0.1`  | Sets the initial longitude of the map centre on the map page. If omitted, the map auto-fits to the loaded spots.                                                      |
-| `map-zoom`       | Numeric (integer)       | (auto)  | `?map-zoom=6`           | Sets the initial zoom level of the map on the map page. If omitted, the map auto-fits to the loaded spots.                                                            |
-
-See the comment at the end of the next section regarding reliability and uptime of the "main" server.
@@ -1,79 +0,0 @@
-## Modifying the source code
-
-Spothole is Public Domain licenced, so you can grab the source code and start modifying it for your own needs.
-Contributions of code back to the main repository are encouraged, but completely optional.
-
-### Code structure
-
-To navigate your way around the source code, this list may help.
-
-*Python back-end code*
-
-* `/core` - Core classes and utilities
-* `/data` - Data storage classes
-* `/providers/spot` - Classes providing spots by accessing the APIs of other services
-* `/providers/alert` - Classes providing alerts by accessing the APIs of other services
-* `/providers/solarconditions` - Classes providing solar and propagation by accessing the APIs of other services
-* `/providers/staticdata` - Classes providing static lookup data by accessing bundled data files or the APIs of other
-  services
-* `/providers/callsign` - Classes providing callsign lookup data by accessing bundled data files or the APIs of other
-  services
-* `/providers/activityrefdata` - Classes providing activity reference lookup data by accessing bundled data files or
-  the APIs of other services
-* `/webserver` - Classes for running Spothole's own web server
-* `/telnetserver` - Classes for running Spothole's telnet server
-* `spothole.py` - Main application script
-
-*Templates*
-
-* `/templates` - Templates used for constructing Spothole's user-targeted HTML pages
-
-*HTML/JS/CSS front-end code*
-
-* `/static` - Root for static files served by the web server. These are all served from a path starting `/static/`.
-* `/static/apidocs` - Contains the OpenAPI spec (`openapi.yml`)
-* `/static/audio` - Audio files used by the web front-end
-* `/static/css` - CSS files used by the web front-end
-* `/static/img` - image files used by the web front-end
-* `/static/js` - JavaScript used by the web front-end
-* `/static/vendor` - Third-party libraries (CSS, JS, fonts and images)
-
-*Miscellaneous*
-
-* `/` - pip `requirements.txt`, config, README, etc.
-* `/docs` - Documentation
-* `/images` - Image sources
-* `/datafiles` - Local data files, used by some providers when the data will never change and/or is not easily available
-  online in a format Spothole can handle
-* `/cache` - Directory where Spothole stores all the data it uses that should be persisted to disk. Created on first
-  run.
-
-### Extending the server
-
-Spothole is designed to be easily extensible. If you want to write your own spot provider, for example, simply add a
-module to the `providers.spot` package containing your class. (Currently, in order to be loaded correctly, the module
-(file) name should be the same as the class name, but lower case.)
-
-Your class should extend "SpotProvider"; if it operates by polling an HTTP Server on a timer, it can instead extend "
-HTTPSpotProvider" where some of the work is done for you.
-
-The class will need to implement a constructor that takes in the `provider_config` and provides it to the superclass
-constructor, while also taking any other config parameters it needs.
-
-If you're extending the base `SpotProvider` class, you will need to implement `start()` and `stop()` methods that start
-and stop a separate thread which handles the provider's processing needs. The thread should call `submit()` or
-`submit_batch()` when it has one or more spots to report.
-
-If you're extending the `HTTPSpotProvider` class, you will need to provide a URI to query and an interval to the
-superclass constructor. You'll then need to implement the `http_response_to_spots()` method which is called when new
-data is retrieved. Your implementation should then call `submit()` or `submit_batch()` when it has one or more spots to
-report.
-
-When constructing spots, use the comments in the Spot class and the existing implementations as an example. All
-parameters are optional, but you will at least want to provide a `time` (which must be timezone-aware) and a `dx_call`.
-
-Finally, simply add the appropriate config to the `spot_providers` section of `config.yml`, and your provider should be
-instantiated on startup.
-
-The same approach as above is also used for alerts, and other types of providers. Give me a shout if you need any
-advice.
@@ -1,96 +0,0 @@
-## Multiple cluster nodes with different settings
-
-Dan, S50U has written in with his Spothole cluster settings. He is using a cluster node which provides RBN spots, and
-uses different SSIDs on his callsign to get different settings when logged into the same cluster node. For example:
-
-```
-  -
-    class: "DXCluster"
-    name: "S50CLX"
-    enabled: true
-    host: "s50clx.si"
-    port: 41112
-    login_prompt: "login: "
-    login_callsign: "callsign-10"
-```
-
-Telnet to DXSpider and log in with "callsign-10" and execute the following commands:
-
-`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
-`UNSET/ANN` (stop announce messages)<br/>
-`UNSET/WCY` (stop wcy messages)<br/>
-`UNSET/WWV` (stop wwv messages)<br/>
-`SET/DX` (enable human DX spots)
-
-```
-  -
-    class: "DXCluster"
-    name: "RBN CW"
-    enabled: true
-    host: "s50clx.si"
-    port: 41112
-    login_prompt: "login: "
-    login_callsign: "callsign-11"
-    allow_rbn_spots: true
-    enabled_by_default_in_web_ui: false
-```
-
-Telnet to DXSpider and log in with "callsign-11" and execute the following commands:
-
-`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
-`UNSET/ANN` (stop announce messages)<br/>
-`UNSET/WCY` (stop wcy messages)<br/>
-`UNSET/WWV` (stop wwv messages)<br/>
-`UNSET/DX` (stop human DX spots)<br/>
-`SET/SKIMMER CW` (enable CW RBN spots)
-
-```
-  -
-    class: "DXCluster"
-    name: "RBN RTTY"
-    enabled: true
-    host: "s50clx.si"
-    port: 41112
-    login_prompt: "login: "
-    login_callsign: "callsign-12"
-    allow_rbn_spots: true
-    enabled_by_default_in_web_ui: false
-```
-
-Telnet to DXSpider and log in with "callsign-12" and execute the following commands:
-
-`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
-`UNSET/ANN` (stop announce messages)<br/>
-`UNSET/WCY` (stop wcy messages)<br/>
-`UNSET/WWV` (stop wwv messages)<br/>
-`UNSET/DX` (stop human DX spots)<br/>
-`SET/SKIMMER RTTY` (enable RTTY RBN spots)
-
-```
-  -
-    class: "DXCluster"
-    name: "RBN FT4/8"
-    enabled: true
-    host: "s50clx.si"
-    port: 41112
-    login_prompt: "login: "
-    login_callsign: "callsign-13"
-    allow_rbn_spots: true
-    enabled_by_default_in_web_ui: false
-```
-
-Telnet to DXSpider and log in with "callsign-13" and execute the following commands:
-
-`CLEAR/SPOTS ALL` (delete all previous filters)<br/>
-`UNSET/ANN` (stop announce messages)<br/>
-`UNSET/WCY` (stop wcy messages)<br/>
-`UNSET/WWV` (stop wwv messages)<br/>
-`UNSET/DX` (stop human DX spots)<br/>
-`SET/SKIMMER FT` (enable FT RBN spots)
-
-For each callsign-SSID, we also specify our basic information with commands:
-
-`SET/NAME Spothole10`, Spothole11... etc.<br/>
-`SET/QTH Cerkno`<br/>
-`SET/QRA JN66XD`<br/>
-`SET/HOME S50CLX`
@@ -1,118 +0,0 @@
-## nginx Reverse Proxy configuration
-
-Web servers generally serve their pages from port 80. However, it's best not to serve Spothole's web interface directly
-on port 80, as that requires root privileges on a Linux system. It also and prevents us using HTTPS to serve a secure
-site, since Spothole itself doesn't directly support acting as an HTTPS server. The normal solution to this is to use a
-"reverse proxy" setup, where a general web server handles HTTP and HTTP requests (to port 80 & 443 respectively), then
-passes on the request to the back-end application (in this case Spothole). nginx is a common choice for this general web
-server.
-
-To set up nginx as a reverse proxy that sits in front of Spothole, first ensure it's installed e.g.
-`sudo apt install nginx`, and enabled e.g. `sudo systemd enable nginx`.
-
-Create a file at `/etc/nginx/sites-available/` called `spothole`. Give it the following contents, replacing
-`spothole.app` with the domain name on which you want to run Spothole. If you changed the port on which Spothole runs,
-update that on the "proxy_pass" line, and if you installed Spothole somewhere other than `/home/spothole/spothole`,
-adjust the alias location for serving static files.
-
-(The latter section, configuring the nginx server to serve static files directly, improves efficiency because it saves
-Spothole itself from serving JS, CSS etc. files. If you can't do this for some reason, e.g. your nginx and spothole are
-on different computers, you can omit the `location /static/ {}` block.)
-
-```nginx
-server {
-    server_name spothole.app;
-
-    # Global proxy settings
-    proxy_http_version 1.1;
-    proxy_set_header Connection "";
-    proxy_connect_timeout 10s;
-    proxy_buffering on;
-    
-    # Pass on IP address and host information to Spothole, in case logging this information is required
-    proxy_set_header X-Real-IP $remote_addr;
-    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    proxy_set_header Host $http_host;
-    proxy_set_header X-Forwarded-Proto $scheme;
-
-    # Wellknown area for Lets Encrypt
-    location /.well-known/ {
-        alias /var/www/html/.well-known/;
-    }
-
-    # Load static assets directly from the Spothole static directory
-    location /static/ {
-        alias /home/spothole/spothole/static/;
-        expires 1h;
-        add_header Cache-Control "public, max-age=3600, must-revalidate";
-    }
-    
-    # SSE endpoints
-    location ~ ^/api/v\d*/(spots|alerts)/stream/? {
-        proxy_pass http://127.0.0.1:8080;
-        
-        # Remove buffering, remove caching, add suitable timeouts for SSE API calls
-        proxy_buffering off;
-        proxy_cache off;
-        proxy_read_timeout 24h;
-        proxy_send_timeout 24h;
-        proxy_set_header X-Accel-Buffering no;
-        add_header Cache-Control no-store always;
-        
-        # Allow cross-origin requests to API
-        proxy_hide_header Access-Control-Allow-Origin;
-        add_header Access-Control-Allow-Origin * always; 
-    }
-
-    # Other API endpoints
-    location /api/ {
-        proxy_pass http://127.0.0.1:8080;
-        
-        # Remove buffering, remove caching, add suitable timeouts for API calls
-        proxy_buffering off;
-        proxy_cache off;
-        proxy_read_timeout 30s;
-        add_header Cache-Control no-store always;
-        
-        # Allow cross-origin requests to API
-        proxy_hide_header Access-Control-Allow-Origin;
-        add_header Access-Control-Allow-Origin * always;
-    }
-
-    # Templated pages
-    location / {
-        proxy_pass http://127.0.0.1:8080;
-        proxy_read_timeout 30s;
-        add_header Cache-Control "no-cache, must-revalidate" always;
-    }
-}
-```
-
-One further change you might want to make to the file above is the `add_header Access-Control-Allow-Origin` statements.
-These are what's used on my own Spothole server to make sure that other third-party web-based software can get the data
-from my instance, and applies to any endpoint underneath `/api`. If you want *your* Spothole instance to be set up the
-same way, so that others can write software in JavaScript that can access it, leave this intact. But if you want your
-Spothole instance to only be usable by scripts running on the web server you write, you can remove these lines. (Note
-that this doesn't stop other people writing *non-web-based* software that accesses your Spothole API&mdash;the
-enforcement of cross-origin headers only happens within the user's browser. If you need to lock your instance down so
-that no-one else can access it with *any* software, that's an aspect of nginx or firewall config that you will need to
-find help with elsewhere.)
-
-Now, make a symbolic link to enable the site:
-
-```bash
-cd /etc/nginx/sites-enabled
-sudo ln -sf ../sites-available/spothole
-```
-
-Test that your nginx config isn't broken using `nginx -t`. If it works, restart nginx with
-`sudo systemctl restart nginx`.
-
-If you haven't already done so, set up a DNS entry to make sure requests for your domain name end up at the server
-that's running Spothole.
-
-You should now be able to access the web interface by going to the domain from your browser.
-
-Once that's working, [install certbot](https://certbot.eff.org/instructions?ws=nginx&os=snap) onto your server. Run it
-as root, and when prompted pick your domain name from the list. After a few seconds, it should successfully provision a
-certificate and modify your nginx config files automatically. You should then be able to access the site via HTTPS.
@@ -1,54 +0,0 @@
-## Running your own copy
-
-If you want to run a copy of Spothole with different configuration settings than the main instance, you can download it
-and run it on your own local machine or server.
-
-You will require Python version 3.10 or later. If you encounter an error about `gdal-config` during the following
-process, you will also need `libgdal-dev` installed.
-
-To download and set up Spothole on a Debian server, run the following commands. Other operating systems will likely be
-similar.
-
-```bash
-git clone ssh://git@git.ianrenton.com/ian/spothole.git
-cd spothole
-python3 -m venv ./.venv
-source .venv/bin/activate
-pip install -r requirements.txt
-deactivate
-cp config-example.yml config.yml
-```
-
-Then edit `config.yml` in your text editor of choice to set up the software as you like it. Mostly, this will involve
-enabling or disabling the various providers of spot and alert data.
-
-By default, all outdoor programme providers are enabled, as is one cluster node and the NG3K DXpedition data. The RBN
-spot providers are turned off by default due to the volume of traffic from CW/RTTY/FT8 skimmers, and the APRS and Packet
-spot providers are off by default on the assumption that Spothole users want a spot with a human at the other end of it,
-but all can be easily re-enabled.
-
-Other parameters you will want to update include the base URL to your instance, and whether you want to serve a full
-web-based DX cluster interface or just the API endpoints for client software to use.
-
-`config.yml` has an entry for a Clublog API key. If provided, this will allow Spothole to retrieve some more information
-about DX spots. The software will work just fine without it, but you may find a few country flags etc. are less accurate
-or missing. Clublog API keys are free, but you'll need to get your own by submitting a helpdesk ticket and explaining
-what you'll use it for. The admin team are happy with the rate of requests made by my Spothole server, so unless you
-change the source code of yours to radically increase the rate of querying Clublog, I'm sure they will be fine with your
-server too.
-
-Once you're happy with the content of `config.yml`, you can proceed to running the software.
-
-To run the software this time and any future times you want to run it directly from the command line:
-
-```bash
-source .venv/bin/activate
-python3 spothole.py
-```
-
-The software can take a few seconds to start up, particularly if it's been run previously and has a large amount of
-cache data to sort through. This is normal, don't panic! Once you see `You can access your copy of Spothole at
-http://localhost:8080` in the log, your server is good to go.
-
-If you see some errors on startup, check your configuration, e.g. in case you have specified a port for the web server
-that is already in use by something else.
@@ -1,34 +0,0 @@
-## systemd configuration
-
-If you want Spothole to run automatically on startup on a Linux distribution that uses `systemd`, follow the
-instructions here. For distros that don't use `systemd`, or Windows/OSX/etc., you can find generic instructions for your
-OS online.
-
-Create a file at `/etc/systemd/system/spothole.service`. Give it the following content, adjusting for the user you want
-to run it as and the directory in which you have installed it:
-
-```
-[Unit]
-Description=Spothole
-After=syslog.target network.target
-
-[Service]
-Type=simple
-User=spothole
-WorkingDirectory=/home/spothole/spothole
-ExecStart=/home/spothole/spothole/.venv/bin/python /home/spothole/spothole/spothole.py --serve-in-foreground
-Restart=on-abort
-
-[Install]
-WantedBy=multi-user.target
-```
-
-Run the following:
-
-```bash
-sudo systemctl daemon-reload
-sudo systemctl enable spothole
-sudo systemctl start spothole
-```
-
-Check the service has started up correctly with `sudo journalctl -u spothole -f`.
@@ -13,11 +13,10 @@ class ActivityRefDataProvider:
    """Generic activity reference data provider class. Subclasses of this query the individual URLs or files for
    data."""

-    def __init__(self, sig_name, provider_config):
-        """Constructor. Note the parameter and attribute are still named "sig_name" for consistency with the API's
-        "sig" field name."""
+    def __init__(self, activity_name, provider_config):
+        """Constructor"""

-        self.sig_name = sig_name
+        self.activity_name = activity_name
        self.enabled = provider_config["enabled"]
        self.last_update_time = datetime.min.replace(tzinfo=pytz.UTC)
        self.status = "Not Started" if self.enabled else "Disabled"
@@ -43,7 +42,7 @@ class ActivityRefDataProvider:
        # transact()s is to fail if they can't get the lock (?!). This behaviour is fixed by retry=True.
        with DATA_STORE.activity_refs.transact(retry=True):
            for d in new_data:
-                DATA_STORE.activity_refs.set(f"{self.sig_name}:{d.id}", d)
+                DATA_STORE.activity_refs.set(f"{self.activity_name}:{d.id}", d)

                # For the big data sources, loading will take a few minutes. If we want to shut down the software neatly
                # within the first few minutes of startup, we need a way to abort this expensive process of filling up the
@@ -52,4 +51,4 @@ class ActivityRefDataProvider:
                    break

        self.reference_count = len(new_data)
-        logger.info(f"Loaded {self.reference_count} references for {self.sig_name} into the data store.")
+        logger.info(f"Loaded {self.reference_count} references for {self.activity_name} into the data store.")
@@ -25,7 +25,7 @@ class ARLHS(FileDownloadActivityRefDataProvider):
                ref_id = row["ARLHS"]
                new_data.append(
                    ActivityRef(
-                        sig=self.ACTIVITY,
+                        activity=self.ACTIVITY,
                        id=ref_id,
                        name=row.get("Name", None),
                        ref_type=ActivityRefType.LIGHTHOUSE,
@@ -30,7 +30,7 @@ class COTA(FileDownloadActivityRefDataProvider):

                new_data.append(
                    ActivityRef(
-                        sig=self.ACTIVITY,
+                        activity=self.ACTIVITY,
                        id=ref_id,
                        name=name,
                        ref_type=ActivityRefType.CASTLE,
@@ -27,7 +27,12 @@ class DCE(FileDownloadActivityRefDataProvider):
        for index, row in df.iterrows():
            if row.iloc[0] and row.iloc[2]:
                new_data.append(
-                    ActivityRef(sig=self.ACTIVITY, id=row.iloc[0].strip(), name=row.iloc[2].strip(), ref_type=ActivityRefType.CASTLE)
+                    ActivityRef(
+                        activity=self.ACTIVITY,
+                        id=row.iloc[0].strip(),
+                        name=row.iloc[2].strip(),
+                        ref_type=ActivityRefType.CASTLE,
+                    )
                )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
@@ -31,7 +31,12 @@ class DEFE(FileDownloadActivityRefDataProvider):

            if row.iloc[0] and row.iloc[1]:
                new_data.append(
-                    ActivityRef(sig=self.ACTIVITY, id=row.iloc[0].strip(), name=row.iloc[1].strip(), ref_type=ActivityRefType.BUILDING)
+                    ActivityRef(
+                        activity=self.ACTIVITY,
+                        id=row.iloc[0].strip(),
+                        name=row.iloc[1].strip(),
+                        ref_type=ActivityRefType.BUILDING,
+                    )
                )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
@@ -40,7 +40,7 @@ class DME(LocalFileActivityRefDataProvider):
                )

                ref = ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    ref_type=ActivityRefType.TOWN,
                    name=f"{row['NOMBRE_ACTUAL']}, {row['PROVINCIA']}",
@@ -22,7 +22,12 @@ class DMUE(FileDownloadActivityRefDataProvider):
        for row in csv.reader(http_response.content.decode("utf-8-sig").splitlines(), delimiter=";"):
            if len(row) > 1 and row[0] and row[1]:
                new_data.append(
-                    ActivityRef(sig=self.ACTIVITY, id=row[0].strip(), name=row[1].strip(), ref_type=ActivityRefType.BUILDING)
+                    ActivityRef(
+                        activity=self.ACTIVITY,
+                        id=row[0].strip(),
+                        name=row[1].strip(),
+                        ref_type=ActivityRefType.BUILDING,
+                    )
                )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
@@ -36,7 +36,11 @@ class DMVE(FileDownloadActivityRefDataProvider):
                continue

            if ref and name:
-                new_data.append(ActivityRef(sig=self.ACTIVITY, id=ref.strip(), name=name.strip(), ref_type=ActivityRefType.BUILDING))
+                new_data.append(
+                    ActivityRef(
+                        activity=self.ACTIVITY, id=ref.strip(), name=name.strip(), ref_type=ActivityRefType.BUILDING
+                    )
+                )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
            # the data in this case
@@ -21,7 +21,9 @@ class DTMBA(FileDownloadActivityRefDataProvider):
            split = row.split(";")
            ref_id = split[0]
            ref_name = split[1]
-            new_data.append(ActivityRef(sig=self.ACTIVITY, id=ref_id, name=ref_name, ref_type=ActivityRefType.BUILDING))
+            new_data.append(
+                ActivityRef(activity=self.ACTIVITY, id=ref_id, name=ref_name, ref_type=ActivityRefType.BUILDING)
+            )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
            # the data in this case
@@ -41,8 +41,16 @@ class FEA(FileDownloadActivityRefDataProvider):
                # prefix and just use FEA-1234 or FEA 1234, so we add both copies to the database.
                ref_id_1 = row[0].strip()
                ref_id_2 = ref_id_1.replace("D-", "FEA-").replace("E-", "FEA-")
-                new_data.append(ActivityRef(sig=self.ACTIVITY, id=ref_id_1, name=row[1].strip(), ref_type=ActivityRefType.LIGHTHOUSE))
-                new_data.append(ActivityRef(sig=self.ACTIVITY, id=ref_id_2, name=row[1].strip(), ref_type=ActivityRefType.LIGHTHOUSE))
+                new_data.append(
+                    ActivityRef(
+                        activity=self.ACTIVITY, id=ref_id_1, name=row[1].strip(), ref_type=ActivityRefType.LIGHTHOUSE
+                    )
+                )
+                new_data.append(
+                    ActivityRef(
+                        activity=self.ACTIVITY, id=ref_id_2, name=row[1].strip(), ref_type=ActivityRefType.LIGHTHOUSE
+                    )
+                )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
            # the data in this case
@@ -16,19 +16,21 @@ class FileDownloadActivityRefDataProvider(ActivityRefDataProvider):
    """Generic activity ref data provider class for providers that fetch their data from the web by downloading a
    file."""

-    def __init__(self, sig_name, provider_config, url, poll_interval):
+    def __init__(self, activity_name, provider_config, url, poll_interval):
        """Set up the provider, note poll_interval is in *days*."""
-        super().__init__(sig_name, provider_config)
+        super().__init__(activity_name, provider_config)
        self._url = url
        self._poll_interval = poll_interval
        self._thread = None
-        self._url_data_cache = URLDataCache(f"activity_ref_data_{sig_name}")
+        self._url_data_cache = URLDataCache(f"activity_ref_data_{activity_name}")

    def start(self):
        # Fire off the polling thread. It will poll immediately on startup, then sleep for poll_interval between
        # subsequent polls, so start() returns immediately and the application can continue starting.
-        logger.info(f"Set up query of {self.sig_name} activity ref data every {self._poll_interval!s} days.")
-        self._thread = Thread(target=self._run, name=f"FileDownloadActivityRefDataProvider-{self.sig_name}", daemon=True)
+        logger.info(f"Set up query of {self.activity_name} activity ref data every {self._poll_interval!s} days.")
+        self._thread = Thread(
+            target=self._run, name=f"FileDownloadActivityRefDataProvider-{self.activity_name}", daemon=True
+        )
        self._thread.start()

    def stop(self):
@@ -36,7 +38,9 @@ class FileDownloadActivityRefDataProvider(ActivityRefDataProvider):
        if self._thread:
            self._thread.join(timeout=12)
            if self._thread.is_alive():
-                logger.warning(f"{self.sig_name} activity ref data worker thread did not exit on time and will be killed.")
+                logger.warning(
+                    f"{self.activity_name} activity ref data worker thread did not exit on time and will be killed."
+                )

    def _run(self):
        while True:
@@ -48,7 +52,7 @@ class FileDownloadActivityRefDataProvider(ActivityRefDataProvider):
        try:
            # Request data from API. Use the data cache (with a TTL of 1 day) here, not as the main mechanism for
            # caching, but just so continual restarts of the software during testing don't hammer the servers.
-            logger.debug(f"Downloading {self.sig_name} activity ref data...")
+            logger.debug(f"Downloading {self.activity_name} activity ref data...")
            http_response = self._url_data_cache.get(self._url, headers=HTTP_HEADERS)
            # Check response code was good
            if http_response.ok:
@@ -60,20 +64,22 @@ class FileDownloadActivityRefDataProvider(ActivityRefDataProvider):

                self.status = "OK"
                self.last_update_time = datetime.now(pytz.UTC)
-                logger.debug(f"Received activity ref data for {self.sig_name}")
+                logger.debug(f"Received activity ref data for {self.activity_name}")
            else:
                self.status = "Error"
-                logger.warning(f"HTTP {http_response.status_code} when downloading activity ref data for {self.sig_name}.")
+                logger.warning(
+                    f"HTTP {http_response.status_code} when downloading activity ref data for {self.activity_name}."
+                )

        except ConnectionError:
            self.status = "Error"
-            logger.warning(f"Connection error when downloading activity ref data for {self.sig_name}.")
+            logger.warning(f"Connection error when downloading activity ref data for {self.activity_name}.")
        except (ConnectTimeout, ReadTimeout):
            self.status = "Error"
-            logger.warning(f"Timeout when downloading activity ref data for {self.sig_name}.")
+            logger.warning(f"Timeout when downloading activity ref data for {self.activity_name}.")
        except Exception:
            self.status = "Error"
-            logger.exception(f"Exception in HTTP Activity Ref Data Provider ({self.sig_name})")
+            logger.exception(f"Exception in HTTP Activity Ref Data Provider ({self.activity_name})")
            self._stop_event.wait(timeout=1)

    def _http_response_to_data(self, http_response):
@@ -24,7 +24,7 @@ class GMA(FileDownloadActivityRefDataProvider):
            ref_id = row["Reference"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("Name", None),
                    ref_type=ActivityRefType.SUMMIT,
@@ -25,7 +25,7 @@ class ILLW(FileDownloadActivityRefDataProvider):
                ref_id = row["ILLW"]
                new_data.append(
                    ActivityRef(
-                        sig=self.ACTIVITY,
+                        activity=self.ACTIVITY,
                        id=ref_id,
                        name=row.get("Name", None),
                        ref_type=ActivityRefType.LIGHTHOUSE,
@@ -42,7 +42,7 @@ class IOTA(FileDownloadActivityRefDataProvider):

                new_data.append(
                    ActivityRef(
-                        sig=self.ACTIVITY,
+                        activity=self.ACTIVITY,
                        id=ref_id,
                        name=ref["name"],
                        ref_type=ActivityRefType.ISLAND,
@@ -30,7 +30,7 @@ class LLOTA(FileDownloadActivityRefDataProvider):

                new_data.append(
                    ActivityRef(
-                        sig=self.ACTIVITY,
+                        activity=self.ACTIVITY,
                        id=ref_id,
                        name=str(ref["name"]),
                        ref_type=ActivityRefType.LAKE,
@@ -11,12 +11,12 @@ logger = logging.getLogger(__name__)
 class LocalFileActivityRefDataProvider(ActivityRefDataProvider):
    """Generic activity ref data provider class for providers that fetch their data from a local file on startup."""

-    def __init__(self, sig_name, provider_config, path):
-        super().__init__(sig_name, provider_config)
+    def __init__(self, activity_name, provider_config, path):
+        super().__init__(activity_name, provider_config)
        self._path = path

    def start(self):
-        logger.debug(f"Loading {self.sig_name} activity ref data from file.")
+        logger.debug(f"Loading {self.activity_name} activity ref data from file.")
        try:
            new_data = self._file_to_data(self._path)
            if new_data:
@@ -25,10 +25,10 @@ class LocalFileActivityRefDataProvider(ActivityRefDataProvider):
                self.last_update_time = datetime.now(pytz.UTC)
            else:
                self.status = "Error"
-                logger.info(f"Failed to load activity ref data for {self.sig_name}")
+                logger.info(f"Failed to load activity ref data for {self.activity_name}")
        except Exception:
            self.status = "Error"
-            logger.exception(f"Exception in local file Activity Ref Data Provider ({self.sig_name})")
+            logger.exception(f"Exception in local file Activity Ref Data Provider ({self.activity_name})")

    def _file_to_data(self, path):
        """Load a file on the given path and turn it into activity ref data."""
@@ -24,7 +24,7 @@ class MOTA(FileDownloadActivityRefDataProvider):
            ref_id = row["Reference"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("Name", None),
                    ref_type=ActivityRefType.MILL,
@@ -39,7 +39,7 @@ class PGA(FileDownloadActivityRefDataProvider):

                    new_data.append(
                        ActivityRef(
-                            sig=self.ACTIVITY,
+                            activity=self.ACTIVITY,
                            id=ref_id,
                            name=name,
                            ref_type=ActivityRefType.REGION,
@@ -17,9 +17,9 @@ class ParksNPeaksKMLActivityRefDataProvider(FileDownloadActivityRefDataProvider)

    REF_PATTERN = re.compile(r"VKFF-\d+")

-    def __init__(self, sig_name, provider_config, url, poll_interval):
+    def __init__(self, activity_name, provider_config, url, poll_interval):
        """Set up the provider, note poll_interval is in *days*."""
-        super().__init__(sig_name, provider_config, url, poll_interval)
+        super().__init__(activity_name, provider_config, url, poll_interval)

    def _http_response_to_data(self, http_response):
        new_data = []
@@ -41,7 +41,7 @@ class ParksNPeaksKMLActivityRefDataProvider(FileDownloadActivityRefDataProvider)
                    longitude, latitude = placemark.geometry.x, placemark.geometry.y

                    ref = ActivityRef(
-                        sig=self.sig_name,
+                        activity=self.activity_name,
                        id=ref_id,
                        name=placemark.name,
                        ref_type=ActivityRefType.PARK,
@@ -24,7 +24,7 @@ class POTA(FileDownloadActivityRefDataProvider):
            ref_id = row["reference"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("name", None),
                    ref_type=ActivityRefType.PARK,
@@ -24,7 +24,7 @@ class SIOTA(FileDownloadActivityRefDataProvider):
            ref_id = row["SILO_CODE"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("NAME", None),
                    ref_type=ActivityRefType.SILO,
@@ -28,7 +28,7 @@ class SOTA(FileDownloadActivityRefDataProvider):
            longitude = float(row["Longitude"]) if "Longitude" in row and row["Longitude"] != "" else None
            altitude = float(row["AltM"]) if "AltM" in row and row["AltM"] != "" else None
            ref = ActivityRef(
-                sig=self.ACTIVITY,
+                activity=self.ACTIVITY,
                id=ref_id,
                name=row.get("SummitName", None),
                ref_type=ActivityRefType.SUMMIT,
@@ -24,7 +24,7 @@ class Toilets(LocalFileActivityRefDataProvider):
            for row in dr:
                new_data.append(
                    ActivityRef(
-                        sig=self.ACTIVITY,
+                        activity=self.ACTIVITY,
                        id=row["ref"],
                        name=row["ref"],
                        ref_type=ActivityRefType.TOILET,
@@ -24,7 +24,7 @@ class Towers(FileDownloadActivityRefDataProvider):
            ref_id = row["Ref"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("Nazev", None),
                    ref_type=ActivityRefType.TOWER,
@@ -43,7 +43,7 @@ class WCA(FileDownloadActivityRefDataProvider):

            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("CLEAN NAME", None),
                    ref_type=ActivityRefType.CASTLE,
@@ -30,7 +30,7 @@ class WOTA(FileDownloadActivityRefDataProvider):

            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=feature["properties"]["title"],
                    url=url,
@@ -24,7 +24,7 @@ class WWBOTA(FileDownloadActivityRefDataProvider):
            ref_id = row["Reference"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("Name", None),
                    ref_type=ActivityRefType.BUNKER,
@@ -24,7 +24,7 @@ class WWFF(FileDownloadActivityRefDataProvider):
            ref_id = row["reference"]
            new_data.append(
                ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("name", None),
                    ref_type=ActivityRefType.PARK,
@@ -33,7 +33,7 @@ class ZLOTA(FileDownloadActivityRefDataProvider):
                    ref_type = None

                new_ref = ActivityRef(
-                    sig=self.ACTIVITY,
+                    activity=self.ACTIVITY,
                    id=ref_id,
                    name=ref["name"],
                    ref_type=ref_type,
@@ -56,8 +56,8 @@ class BOTA(HTTPAlertProvider):
                    alert = Alert(
                        source=self.name,
                        dx_calls=[dx_call],
-                        sig=ActivityName.BOTA,
-                        sig_refs=[ActivityRef(id=ref_name, sig=ActivityName.BOTA)],
+                        activity=ActivityName.BOTA,
+                        activity_refs=[ActivityRef(id=ref_name, activity=ActivityName.BOTA)],
                        start_time=date_time.timestamp(),
                    )

@@ -22,25 +22,28 @@ class Hamsat(HTTPAlertProvider):
        # Iterate through source data
        for source_alert in http_response.json()["data"]:
            # Convert to our alert format
-            freqs_modes = source_alert.get("mode", "")
-            if "mhz" in source_alert:
-                if "mhz_direction" in source_alert:
-                    freqs_modes = f"{source_alert['mhz']!s} {source_alert['mhz_direction']}, {freqs_modes}"
+            freqs_modes = source_alert.get("mode") or ""
+            mhz = source_alert.get("mhz")
+            if mhz is not None:
+                mhz_direction = source_alert.get("mhz_direction")
+                if mhz_direction is not None:
+                    freqs_modes = f"{mhz!s} {mhz_direction}, {freqs_modes}"
                else:
-                    freqs_modes = f"{source_alert['mhz']!s}, {freqs_modes}"
+                    freqs_modes = f"{mhz!s}, {freqs_modes}"

            alert = Alert(
                source=self.name,
                source_id=source_alert["id"],
                dx_calls=[source_alert["callsign"].upper()],
+                dx_grid=source_alert["grids"][0],
                freqs_modes=freqs_modes,
                comment=source_alert["comment"],
-                sig=ActivityName.SATELLITE,
+                activity=ActivityName.SATELLITE,
                # Fudge an activity ref to provide the remaining bits of data we need: the satellite and the operator's grid
-                sig_refs=[
+                activity_refs=[
                    ActivityRef(
-                        sig=ActivityName.SATELLITE,
-                        id=f"{source_alert['satellite']['name']} from {source_alert['grids'][0]}",
+                        activity=ActivityName.SATELLITE,
+                        id=source_alert["satellite"]["name"],
                    )
                ],
                start_time=datetime.strptime(source_alert["aos_at"], "%Y-%m-%dT%H:%M:%SZ")
@@ -89,7 +89,7 @@ class NG3K(HTTPAlertProvider):
                comment=f"{by}; {comment}; {qsl_info}",
                start_time=start_timestamp,
                end_time=end_timestamp,
-                sig=ActivityName.DXPEDITION,
+                activity=ActivityName.DXPEDITION,
            )

            # Add to our list.
@@ -37,7 +37,7 @@ class ParksNPeaks(HTTPAlertProvider):
                datetime.strptime(source_alert["alTime"], "%Y-%m-%d %H:%M:%S").replace(tzinfo=pytz.UTC).timestamp()
            )

-            activity_refs = [ActivityRef(id=ref_id, sig=activity, name=ref_name)]
+            activity_refs = [ActivityRef(id=ref_id, activity=activity, name=ref_name)]

            # Convert to our alert format
            alert = Alert(
@@ -46,8 +46,8 @@ class ParksNPeaks(HTTPAlertProvider):
                dx_calls=[source_alert["CallSign"].upper()],
                freqs_modes=f"{source_alert['Freq']} {source_alert['MODE']}",
                comment=source_alert["Comments"],
-                sig=activity,
-                sig_refs=activity_refs,
+                activity=activity,
+                activity_refs=activity_refs,
                start_time=start_time,
            )

@@ -28,11 +28,11 @@ class POTA(HTTPAlertProvider):
                dx_calls=[source_alert["activator"].upper()],
                freqs_modes=source_alert["frequencies"],
                comment=source_alert["comments"],
-                sig=ActivityName.POTA,
-                sig_refs=[
+                activity=ActivityName.POTA,
+                activity_refs=[
                    ActivityRef(
                        id=source_alert["reference"],
-                        sig=ActivityName.POTA,
+                        activity=ActivityName.POTA,
                        name=source_alert["name"],
                        url=f"https://pota.app/#/park/{source_alert['reference']}",
                    )
@@ -69,7 +69,7 @@ class RSGBICALAlertProvider(ICALAlertProvider):
            comment=summary,
            start_time=start_timestamp,
            end_time=end_timestamp,
-            sig=ActivityName.CONTEST,
+            activity=ActivityName.CONTEST,
        )

        return alert
@@ -34,11 +34,11 @@ class SOTA(HTTPAlertProvider):
                dx_names=[source_alert["activatorName"].upper()],
                freqs_modes=source_alert["frequency"],
                comment=source_alert["comments"],
-                sig=ActivityName.SOTA,
-                sig_refs=[
+                activity=ActivityName.SOTA,
+                activity_refs=[
                    ActivityRef(
                        id=f"{source_alert['associationCode']}/{source_alert['summitCode']}",
-                        sig=ActivityName.SOTA,
+                        activity=ActivityName.SOTA,
                        name=summit_name,
                        activation_score=summit_points,
                    )
@@ -35,7 +35,7 @@ class WA7BNM(ICALAlertProvider):
            url=url,
            start_time=start_timestamp,
            end_time=end_timestamp,
-            sig=ActivityName.CONTEST,
+            activity=ActivityName.CONTEST,
        )

        return alert
@@ -75,7 +75,7 @@ class WOTA(HTTPAlertProvider):
                    dx_calls=[dx_call],
                    freqs_modes=freqs_modes,
                    comment=comment,
-                    sig_refs=[ActivityRef(id=ref, sig=ActivityName.WOTA, name=ref_name)] if ref else [],
+                    activity_refs=[ActivityRef(id=ref, activity=ActivityName.WOTA, name=ref_name)] if ref else [],
                    start_time=time.timestamp(),
                )

@@ -28,8 +28,8 @@ class WWFF(HTTPAlertProvider):
                dx_calls=[source_alert["activator_call"].upper()],
                freqs_modes=f"{source_alert['band']} {source_alert['mode']}",
                comment=source_alert["remarks"],
-                sig=ActivityName.WWFF,
-                sig_refs=[ActivityRef(id=source_alert["reference"], sig=ActivityName.WWFF)],
+                activity=ActivityName.WWFF,
+                activity_refs=[ActivityRef(id=source_alert["reference"], activity=ActivityName.WWFF)],
                start_time=datetime.strptime(source_alert["utc_start"], "%Y-%m-%d %H:%M:%S")
                .replace(tzinfo=pytz.UTC)
                .timestamp(),
@@ -1,6 +1,7 @@
 import logging
 import urllib.parse
 from datetime import datetime, timedelta
+from xml.parsers.expat import ExpatError

 import pytz
 import xmltodict
@@ -60,6 +61,9 @@ class HamQTH(APIQueryCallsignDataProvider):
                        # Log this failure at debug level only, not our problem if user entered the wrong password.
                        logger.debug("HamQTH login details incorrect, failed to look up with HamQTH.")
                        return None
+                except ExpatError:
+                    logger.warning("HamQTH provided blank or malformed content when trying to authenticate")
+                    return None
                except Exception:
                    logger.exception("Exception when getting HamQTH session key")
                    return None
@@ -1,6 +1,7 @@
 import logging
 import urllib.parse
 from datetime import datetime, timedelta
+from xml.parsers.expat import ExpatError

 import pytz
 import xmltodict
@@ -56,6 +57,9 @@ class QRZ(APIQueryCallsignDataProvider):
                        # Log this failure at debug level only, not our problem if user entered the wrong password.
                        logger.debug("QRZ.com login details incorrect, failed to look up with QRZ.")
                        return None
+                except ExpatError:
+                    logger.warning("QRZ.com provided blank or malformed content when trying to authenticate")
+                    return None
                except Exception:
                    logger.exception("Exception when getting QRZ.com session key")
                    return None
@@ -1,20 +1,17 @@
 import logging
 import re
-import socket
 from datetime import datetime
-from threading import Event, Lock, Thread

 import pytz
-import telnetlib3

 from core.config import SERVER_OWNER_CALLSIGN
 from data.spot import Spot
-from providers.spot.spot_provider import SpotProvider, decode_telnet_bytes
+from providers.spot.telnet_spot_provider import TelnetSpotProvider

 logger = logging.getLogger(__name__)


-class DXCluster(SpotProvider):
+class DXCluster(TelnetSpotProvider):
    """Spot provider for a DX Cluster. Hostname, port, login_prompt, login_callsign and allow_rbn_spots are provided in config.
    See config-example.yml for examples."""

@@ -31,112 +28,33 @@ class DXCluster(SpotProvider):
        """Constructor requires hostname and port"""

        name = provider_config.get("name", "Cluster")
-        super().__init__(name, provider_config)
-        self._hostname = provider_config["host"]
-        self._port = provider_config["port"]
-        self._login_prompt = provider_config.get("login_prompt", "login:")
-        self._login_callsign = provider_config.get("login_callsign", SERVER_OWNER_CALLSIGN)
-        self._allow_rbn_spots = provider_config.get("allow_rbn_spots", False)
-        self._spot_line_pattern = (
-            self._LINE_PATTERN_ALLOW_RBN if self._allow_rbn_spots else self._LINE_PATTERN_EXCLUDE_RBN
+        allow_rbn_spots = provider_config.get("allow_rbn_spots", False)
+        self._spot_line_pattern = self._LINE_PATTERN_ALLOW_RBN if allow_rbn_spots else self._LINE_PATTERN_EXCLUDE_RBN
+        super().__init__(
+            name,
+            provider_config,
+            host=provider_config["host"],
+            port=provider_config["port"],
+            login_prompt=provider_config.get("login_prompt", "login:"),
+            login_response=provider_config.get("login_callsign", SERVER_OWNER_CALLSIGN),
        )
-        self._telnet = None
-        self._telnet_lock = Lock()
-        self._thread = None
-        self._stop_event = Event()

-    def start(self):
-        self._thread = Thread(target=self._handle, name=f"DXClusterSpotProvider-{self.name}", daemon=True)
-        self._thread.start()
+    def _parse_line(self, line):
+        match = self._spot_line_pattern.match(line)
+        if not match:
+            return None

-    def stop(self):
-        self._stop_event.set()
-        with self._telnet_lock:
-            if self._telnet:
-                try:
-                    self._telnet.sock.shutdown(socket.SHUT_RDWR)
-                except (AttributeError, OSError):
-                    pass
-                self._telnet.close()
-        if self._thread:
-            self._thread.join(timeout=5)
-            if self._thread.is_alive():
-                logger.warning(f"DX Cluster {self._hostname} worker thread did not exit on time and will be killed.")
-
-    def _handle(self):
-        while not self._stop_event.is_set():
-            connected = False
-            while not connected and not self._stop_event.is_set():
-                try:
-                    self.status = "Connecting"
-                    logger.info(f"DX Cluster {self._hostname} connecting...")
-                    new_telnet = telnetlib3.Telnet(self._hostname, self._port)
-                    with self._telnet_lock:
-                        self._telnet = new_telnet
-                        if self._stop_event.is_set():
-                            # stop() was called while we were connecting, close the connection rather than trying to
-                            # read when we know it won't work
-                            new_telnet.close()
-                            break
-                    self._telnet.read_until(self._login_prompt.encode("latin-1"))
-                    self._telnet.write(f"{self._login_callsign}\n".encode("latin-1"))
-                    connected = True
-                    logger.info(f"DX Cluster {self._hostname} connected.")
-                except ConnectionRefusedError:
-                    self.status = "Error"
-                    logger.warning(f"Connection refused to DX cluster {self._hostname}")
-                    self._stop_event.wait(timeout=300)
-                except Exception:
-                    self.status = "Error"
-                    logger.exception(f"Exception while connecting to DX Cluster Provider ({self._hostname}).")
-                    self._stop_event.wait(timeout=5)
-
-            self.status = "Waiting for Data"
-            while connected and not self._stop_event.is_set():
-                try:
-                    # Check new telnet info against regular expression
-                    telnet_output = self._telnet.read_until("\n".encode("latin-1"))
-                    match = self._spot_line_pattern.match(decode_telnet_bytes(telnet_output))
-                    if match:
-                        spot_time = datetime.strptime(match.group(5), "%H%MZ").replace(tzinfo=pytz.UTC)
-                        spot_datetime = datetime.combine(
-                            datetime.now(pytz.UTC).date(),
-                            spot_time.time(),
-                            tzinfo=pytz.UTC,
-                        )
-                        spot = Spot(
-                            source=self.name,
-                            dx_call=match.group(3),
-                            de_call=match.group(1),
-                            freq=float(match.group(2)) * 1000,
-                            comment=match.group(4).strip(),
-                            time=spot_datetime.timestamp(),
-                        )
-
-                        # Add to our list
-                        self._submit(spot)
-
-                        self.status = "OK"
-                        self.last_update_time = datetime.now(pytz.UTC)
-                        logger.debug(f"Data received from DX Cluster {self._hostname}.")
-
-                except EOFError:
-                    connected = False
-                    if not self._stop_event.is_set():
-                        self.status = "Restarting"
-                        logger.warning(f"Disconnected from DX Cluster {self._hostname}. Reconnecting...")
-                        self._stop_event.wait(timeout=5)
-                    else:
-                        logger.info(f"DX Cluster {self._hostname} shutting down...")
-                        self.status = "Shutting down"
-                except Exception:
-                    connected = False
-                    if not self._stop_event.is_set():
-                        self.status = "Error"
-                        logger.exception(f"Exception in DX Cluster Provider ({self._hostname})")
-                        self._stop_event.wait(timeout=5)
-                    else:
-                        logger.info(f"DX Cluster {self._hostname} shutting down...")
-                        self.status = "Shutting down"
-
-            self.status = "Disconnected"
+        spot_time = datetime.strptime(match.group(5), "%H%MZ").replace(tzinfo=pytz.UTC)
+        spot_datetime = datetime.combine(
+            datetime.now(pytz.UTC).date(),
+            spot_time.time(),
+            tzinfo=pytz.UTC,
+        )
+        return Spot(
+            source=self.name,
+            dx_call=match.group(3),
+            de_call=match.group(1),
+            freq=float(match.group(2)) * 1000,
+            comment=match.group(4).strip(),
+            time=spot_datetime.timestamp(),
+        )
@@ -68,10 +68,10 @@ class GMA(HTTPSpotProvider):
                    # Filter out some weird mode strings
                    mode=Mode.from_name(source_spot["MODE"].upper()) if "<>" not in source_spot["MODE"] else None,
                    comment=source_spot["TEXT"],
-                    sig_refs=[
+                    activity_refs=[
                        ActivityRef(
                            id=source_spot["REF"],
-                            sig="",
+                            activity="",
                            name=source_spot["NAME"],
                            latitude=lat,
                            longitude=lon,
@@ -98,57 +98,57 @@ class GMA(HTTPSpotProvider):
                            and ref_response.text != "\n"
                        ):
                            ref_info = ref_response.json()
-                            if spot.sig_refs and ref_info and "reftype" in ref_info:
+                            if spot.activity_refs and ref_info and "reftype" in ref_info:
                                match ref_info["reftype"]:
                                    case "Summit":
                                        # Summits are a bit complicated, they can be SOTA or GMA depending on the
                                        # separate "sota" field:
                                        if "sota" in ref_info and ref_info["sota"] != "":
-                                            spot.sig_refs[0].sig = ActivityName.SOTA
-                                            spot.sig_refs[0].ref_type = ActivityRefType.SUMMIT
-                                            spot.sig = ActivityName.SOTA
+                                            spot.activity_refs[0].activity = ActivityName.SOTA
+                                            spot.activity_refs[0].ref_type = ActivityRefType.SUMMIT
+                                            spot.activity = ActivityName.SOTA
                                        else:
-                                            spot.sig_refs[0].sig = ActivityName.GMA
-                                            spot.sig_refs[0].ref_type = ActivityRefType.SUMMIT
-                                            spot.sig = ActivityName.GMA
+                                            spot.activity_refs[0].activity = ActivityName.GMA
+                                            spot.activity_refs[0].ref_type = ActivityRefType.SUMMIT
+                                            spot.activity = ActivityName.GMA
                                    case "POTA":
-                                        spot.sig_refs[0].sig = ActivityName.POTA
-                                        spot.sig_refs[0].ref_type = ActivityRefType.PARK
-                                        spot.sig = ActivityName.POTA
+                                        spot.activity_refs[0].activity = ActivityName.POTA
+                                        spot.activity_refs[0].ref_type = ActivityRefType.PARK
+                                        spot.activity = ActivityName.POTA
                                    case "WWFF":
-                                        spot.sig_refs[0].sig = ActivityName.WWFF
-                                        spot.sig_refs[0].ref_type = ActivityRefType.PARK
-                                        spot.sig = ActivityName.WWFF
+                                        spot.activity_refs[0].activity = ActivityName.WWFF
+                                        spot.activity_refs[0].ref_type = ActivityRefType.PARK
+                                        spot.activity = ActivityName.WWFF
                                    case "IOTA Island":
-                                        spot.sig_refs[0].sig = ActivityName.IOTA
-                                        spot.sig_refs[0].ref_type = ActivityRefType.ISLAND
-                                        spot.sig = ActivityName.IOTA
+                                        spot.activity_refs[0].activity = ActivityName.IOTA
+                                        spot.activity_refs[0].ref_type = ActivityRefType.ISLAND
+                                        spot.activity = ActivityName.IOTA
                                    case "GMA Island":
-                                        spot.sig_refs[0].sig = ActivityName.GMA_ISLANDS
-                                        spot.sig_refs[0].ref_type = ActivityRefType.ISLAND
-                                        spot.sig = ActivityName.GMA_ISLANDS
+                                        spot.activity_refs[0].activity = ActivityName.GMA_ISLANDS
+                                        spot.activity_refs[0].ref_type = ActivityRefType.ISLAND
+                                        spot.activity = ActivityName.GMA_ISLANDS
                                    case "Lighthouse (ILLW)":
-                                        spot.sig_refs[0].sig = ActivityName.ILLW
-                                        spot.sig_refs[0].ref_type = ActivityRefType.LIGHTHOUSE
-                                        spot.sig = ActivityName.ILLW
+                                        spot.activity_refs[0].activity = ActivityName.ILLW
+                                        spot.activity_refs[0].ref_type = ActivityRefType.LIGHTHOUSE
+                                        spot.activity = ActivityName.ILLW
                                    case "Lighthouse (ARLHS)":
-                                        spot.sig_refs[0].sig = ActivityName.ARLHS
-                                        spot.sig_refs[0].ref_type = ActivityRefType.LIGHTHOUSE
-                                        spot.sig = ActivityName.ARLHS
+                                        spot.activity_refs[0].activity = ActivityName.ARLHS
+                                        spot.activity_refs[0].ref_type = ActivityRefType.LIGHTHOUSE
+                                        spot.activity = ActivityName.ARLHS
                                    case "Castle":
-                                        spot.sig_refs[0].sig = ActivityName.WCA
-                                        spot.sig_refs[0].ref_type = ActivityRefType.CASTLE
-                                        spot.sig = ActivityName.WCA
+                                        spot.activity_refs[0].activity = ActivityName.WCA
+                                        spot.activity_refs[0].ref_type = ActivityRefType.CASTLE
+                                        spot.activity = ActivityName.WCA
                                    case "Mill":
-                                        spot.sig_refs[0].sig = ActivityName.MOTA
-                                        spot.sig_refs[0].ref_type = ActivityRefType.MILL
-                                        spot.sig = ActivityName.MOTA
+                                        spot.activity_refs[0].activity = ActivityName.MOTA
+                                        spot.activity_refs[0].ref_type = ActivityRefType.MILL
+                                        spot.activity = ActivityName.MOTA
                                    case _:
                                        logger.warning(
                                            f"GMA spot found with ref type {ref_info['reftype']}, developer needs to add support for this!"
                                        )
-                                        spot.sig_refs[0].sig = ref_info["reftype"]
-                                        spot.sig = ref_info["reftype"]
+                                        spot.activity_refs[0].activity = ref_info["reftype"]
+                                        spot.activity = ref_info["reftype"]

                        elif not ref_response.from_cache:
                            if not ref_response.ok:
@@ -62,11 +62,11 @@ class HEMA(HTTPSpotProvider):
                            freq=float(freq_mode_match.group(1)) * 1000000,
                            mode=Mode.from_name(freq_mode_match.group(2).upper()),
                            comment=spotter_comment_match.group(2),
-                            sig=ActivityName.HEMA,
-                            sig_refs=[
+                            activity=ActivityName.HEMA,
+                            activity_refs=[
                                ActivityRef(
                                    id=spot_items[3].upper(),
-                                    sig=ActivityName.HEMA,
+                                    activity=ActivityName.HEMA,
                                    name=spot_items[4],
                                    latitude=float(spot_items[7]),
                                    longitude=float(spot_items[8]),
@@ -34,11 +34,11 @@ class LLOTA(HTTPSpotProvider):
                freq=float(source_spot["frequency"]) * 1000000,
                mode=Mode.from_name(source_spot["mode"].upper()),
                comment=comment,
-                sig=ActivityName.LLOTA,
-                sig_refs=[
+                activity=ActivityName.LLOTA,
+                activity_refs=[
                    ActivityRef(
                        id=source_spot["reference"],
-                        sig=ActivityName.LLOTA,
+                        activity=ActivityName.LLOTA,
                        name=source_spot["reference_name"],
                        ref_type=ActivityRefType.LAKE,
                    )
@@ -70,20 +70,20 @@ class ParksNPeaks(HTTPSpotProvider):
                ref_id = source_spot["actSiteID"]

                if activity:
-                    spot.sig = activity
+                    spot.activity = activity

                    if ref_id:
                        activity_refs = [
                            ActivityRef(
                                id=ref_id,
-                                sig=activity,
+                                activity=activity,
                                # Free text location is not present in all spots, so only add it if it's set
                                name=source_spot["actLocation"]
                                if "actLocation" in source_spot and source_spot["actLocation"] != ""
                                else None,
                            )
                        ]
-                        spot.sig_refs = activity_refs
+                        spot.activity_refs = activity_refs

                    else:
                        # If no actSiteID is set, e.g. because actClass is "QRP", sometimes we still have an actLocation
@@ -128,9 +128,9 @@ class ParksNPeaks(HTTPSpotProvider):
            raise ValueError(
                "Parks N Peaks user ID and API key are required. Get yours from your Parks N Peaks account."
            )
-        ref_id = spot.sig_refs[0].id if spot.sig_refs else ""
+        ref_id = spot.activity_refs[0].id if spot.activity_refs else ""
        body = {
-            "actClass": spot.sig or "",
+            "actClass": spot.activity or "",
            "actCallsign": spot.dx_call,
            "actSite": ref_id,
            "mode": spot.mode or "",
@@ -33,11 +33,11 @@ class POTA(HTTPSpotProvider):
                freq=float(source_spot["frequency"]) * 1000 if source_spot["frequency"] != "INVALID" else None,
                mode=Mode.from_name(source_spot["mode"].upper()),
                comment=source_spot["comments"],
-                sig=ActivityName.POTA,
-                sig_refs=[
+                activity=ActivityName.POTA,
+                activity_refs=[
                    ActivityRef(
                        id=source_spot["reference"],
-                        sig=ActivityName.POTA,
+                        activity=ActivityName.POTA,
                        name=source_spot["name"],
                        latitude=source_spot["latitude"],
                        longitude=source_spot["longitude"],
@@ -61,14 +61,14 @@ class POTA(HTTPSpotProvider):
        return activity == ActivityName.POTA

    def submit_spot(self, spot, credentials):
-        sig_ref = spot.sig_refs[0].id if spot.sig_refs else None
-        if sig_ref:
+        ref_id = spot.activity_refs[0].id if spot.activity_refs else None
+        if ref_id:
            body = {
                "activator": spot.dx_call,
                "spotter": spot.de_call,
                "frequency": str(spot.freq / 1000.0),
                "mode": spot.mode or "",
-                "reference": sig_ref,
+                "reference": ref_id,
                "comments": spot.comment or "",
                "source": "Spothole",
            }
@@ -1,22 +1,19 @@
 import logging
 import re
-import socket
 from datetime import datetime
-from threading import Event, Lock, Thread

 import pytz
-import telnetlib3

 from core.config import SERVER_OWNER_CALLSIGN
 from data.spot import Spot
-from providers.spot.spot_provider import SpotProvider, decode_telnet_bytes
+from providers.spot.telnet_spot_provider import TelnetSpotProvider

 logger = logging.getLogger(__name__)


-class RBN(SpotProvider):
+class RBN(TelnetSpotProvider):
    """Spot provider for the Reverse Beacon Network. Connects to a single port, if you want both CW/RTTY (port 7000) and FT8
-    (port 7001) you need to instantiate two copies of this. The port is provided as an argument to the constructor."""
+    (port 7001) you need to instantiate two copies of this. The port is provided in config."""

    _LINE_PATTERN = re.compile(
        r"^DX de ([a-z0-9/]+)-.*:\s+([0-9.]+)\s+([a-z0-9/]+)\s+(.*)\s+(\d{4}Z)",
@@ -27,101 +24,31 @@ class RBN(SpotProvider):
        """Constructor requires port number."""

        name = provider_config.get("name", "RBN")
-        super().__init__(name, provider_config)
-        self._port = provider_config["port"]
-        self._telnet = None
-        self._telnet_lock = Lock()
-        self._thread = None
-        self._stop_event = Event()
+        super().__init__(
+            name,
+            provider_config,
+            host="telnet.reversebeacon.net",
+            port=provider_config["port"],
+            login_prompt="Please enter your call: ",
+            login_response=SERVER_OWNER_CALLSIGN,
+        )

-    def start(self):
-        self._thread = Thread(target=self._handle, name=f"RBNSpotProvider-{self.name}", daemon=True)
-        self._thread.start()
+    def _parse_line(self, line):
+        match = self._LINE_PATTERN.match(line)
+        if not match:
+            return None

-    def stop(self):
-        self._stop_event.set()
-        with self._telnet_lock:
-            if self._telnet:
-                try:
-                    self._telnet.sock.shutdown(socket.SHUT_RDWR)
-                except (AttributeError, OSError):
-                    pass
-                self._telnet.close()
-        if self._thread:
-            self._thread.join(timeout=5)
-            if self._thread.is_alive():
-                logger.warning(f"RBN (port {self._port!s}) worker thread did not exit on time and will be killed.")
-
-    def _handle(self):
-        while not self._stop_event.is_set():
-            connected = False
-            while not connected and not self._stop_event.is_set():
-                try:
-                    self.status = "Connecting"
-                    logger.info(f"RBN port {self._port!s} connecting...")
-                    new_telnet = telnetlib3.Telnet("telnet.reversebeacon.net", self._port)
-                    with self._telnet_lock:
-                        self._telnet = new_telnet
-                        if self._stop_event.is_set():
-                            # stop() was called while we were connecting, close the connection rather than trying to
-                            # read when we know it won't work
-                            new_telnet.close()
-                            break
-                    self._telnet.read_until("Please enter your call: ".encode("latin-1"))
-                    self._telnet.write(f"{SERVER_OWNER_CALLSIGN}\n".encode("latin-1"))
-                    connected = True
-                    logger.info(f"RBN port {self._port!s} connected.")
-                except Exception:
-                    self.status = "Error"
-                    logger.exception(f"Exception while connecting to RBN (port {self._port!s}).")
-                    self._stop_event.wait(timeout=5)
-
-            self.status = "Waiting for Data"
-            while connected and not self._stop_event.is_set():
-                try:
-                    # Check new telnet info against regular expression
-                    telnet_output = self._telnet.read_until("\n".encode("latin-1"))
-                    match = self._LINE_PATTERN.match(decode_telnet_bytes(telnet_output))
-                    if match:
-                        spot_time = datetime.strptime(match.group(5), "%H%MZ").replace(tzinfo=pytz.UTC)
-                        spot_datetime = datetime.combine(
-                            datetime.now(pytz.UTC).date(),
-                            spot_time.time(),
-                            tzinfo=pytz.UTC,
-                        )
-                        spot = Spot(
-                            source=self.name,
-                            dx_call=match.group(3),
-                            de_call=match.group(1),
-                            freq=float(match.group(2)) * 1000,
-                            comment=match.group(4).strip(),
-                            time=spot_datetime.timestamp(),
-                        )
-
-                        # Add to our list
-                        self._submit(spot)
-
-                        self.status = "OK"
-                        self.last_update_time = datetime.now(pytz.UTC)
-                        logger.debug(f"Data received from RBN on port {self._port!s}.")
-
-                except EOFError:
-                    connected = False
-                    if not self._stop_event.is_set():
-                        self.status = "Restarting"
-                        logger.warning(f"Disconnected from RBN provider (port {self._port!s}). Reconnecting...")
-                        self._stop_event.wait(timeout=5)
-                    else:
-                        logger.info(f"RBN provider (port {self._port!s}) shutting down...")
-                        self.status = "Shutting down"
-                except Exception:
-                    connected = False
-                    if not self._stop_event.is_set():
-                        self.status = "Error"
-                        logger.exception(f"Exception in RBN provider (port {self._port!s})")
-                        self._stop_event.wait(timeout=5)
-                    else:
-                        logger.info(f"RBN provider (port {self._port!s}) shutting down...")
-                        self.status = "Shutting down"
-
-            self.status = "Disconnected"
+        spot_time = datetime.strptime(match.group(5), "%H%MZ").replace(tzinfo=pytz.UTC)
+        spot_datetime = datetime.combine(
+            datetime.now(pytz.UTC).date(),
+            spot_time.time(),
+            tzinfo=pytz.UTC,
+        )
+        return Spot(
+            source=self.name,
+            dx_call=match.group(3),
+            de_call=match.group(1),
+            freq=float(match.group(2)) * 1000,
+            comment=match.group(4).strip(),
+            time=spot_datetime.timestamp(),
+        )
@@ -57,11 +57,11 @@ class SOTA(HTTPSpotProvider):
                        # Seen SOTA spots with no frequency!
                        mode=Mode.from_name(source_spot["mode"].upper()),
                        comment=source_spot["comments"],
-                        sig=ActivityName.SOTA,
-                        sig_refs=[
+                        activity=ActivityName.SOTA,
+                        activity_refs=[
                            ActivityRef(
                                id=source_spot["summitCode"],
-                                sig=ActivityName.SOTA,
+                                activity=ActivityName.SOTA,
                                name=source_spot["summitName"],
                                latitude=source_spot["latitude"],
                                longitude=source_spot["longitude"],
@@ -92,10 +92,10 @@ class SOTA(HTTPSpotProvider):
        id_token = credentials.get("id_token", "")
        if not access_token or not id_token:
            raise ValueError("SOTA API tokens are required. Please log into SOTA in order to spot to it.")
-        sig_ref = spot.sig_refs[0].id if spot.sig_refs else ""
-        if sig_ref:
+        ref_id = spot.activity_refs[0].id if spot.activity_refs else ""
+        if ref_id:
            # Split reference into association and summit codes
-            ref_split = sig_ref.split("/")
+            ref_split = ref_id.split("/")

            # Figure out a valid mode. Borrowed this from PoLo :)
            # https://github.com/ham2k/app-polo/blob/main/src/extensions/activities/sota/SOTAPostSelfSpot.js
@@ -5,18 +5,6 @@ import pytz
 from core.data_store import DATA_STORE


-def decode_telnet_bytes(data: bytes) -> str:
-    """Decode a line of text received from a telnet connection. DX cluster and RBN nodes are inconsistent about the
-    character encoding they use for spot comments: most send UTF-8, but some older ones send Latin-1/CP1252. Try
-    UTF-8 first, since valid multi-byte UTF-8 sequences are very unlikely to occur by chance in Latin-1 text, then
-    fall back to Latin-1, which can decode any byte sequence without raising."""
-
-    try:
-        return data.decode("utf-8")
-    except UnicodeDecodeError:
-        return data.decode("latin-1")
-
-
 class SpotProvider:
    """Generic spot provider class. Subclasses of this query the individual APIs for data."""

@@ -0,0 +1,117 @@
+import logging
+import socket
+from datetime import datetime
+from threading import Event, Lock, Thread
+
+import pytz
+import telnetlib3
+
+from core.utils import decode_telnet_bytes
+from providers.spot.spot_provider import SpotProvider
+
+logger = logging.getLogger(__name__)
+
+
+class TelnetSpotProvider(SpotProvider):
+    """Base class for spot providers that connect to a telnet server to receive spots."""
+
+    def __init__(self, name, provider_config, host, port, login_prompt, login_response):
+        """Constructor. host/port are the telnet server to connect to. login_prompt is the text to wait for before
+        logging in, and login_response is the callsign to send in response."""
+
+        super().__init__(name, provider_config)
+        self._host = host
+        self._port = port
+        self._login_prompt = login_prompt
+        self._login_response = login_response
+        self._telnet = None
+        self._telnet_lock = Lock()
+        self._thread = None
+        self._stop_event = Event()
+
+    def _parse_line(self, line):
+        """Parse a line of telnet output and return a Spot, or None if the line did not contain a spot. Subclasses
+        must implement this method."""
+
+        raise NotImplementedError("Subclasses must implement this method")
+
+    def start(self):
+        self._thread = Thread(target=self._handle, name=f"{self.name}SpotProvider", daemon=True)
+        self._thread.start()
+
+    def stop(self):
+        self._stop_event.set()
+        with self._telnet_lock:
+            if self._telnet:
+                try:
+                    self._telnet.sock.shutdown(socket.SHUT_RDWR)
+                except (AttributeError, OSError):
+                    pass
+                self._telnet.close()
+        if self._thread:
+            self._thread.join(timeout=5)
+            if self._thread.is_alive():
+                logger.warning(f"{self.name} worker thread did not exit on time and will be killed.")
+
+    def _handle(self):
+        while not self._stop_event.is_set():
+            connected = False
+            while not connected and not self._stop_event.is_set():
+                try:
+                    self.status = "Connecting"
+                    logger.info(f"{self.name} connecting to {self._host}:{self._port!s}...")
+                    new_telnet = telnetlib3.Telnet(self._host, self._port)
+                    with self._telnet_lock:
+                        self._telnet = new_telnet
+                        if self._stop_event.is_set():
+                            # stop() was called while we were connecting, close the connection rather than trying to
+                            # read when we know it won't work
+                            new_telnet.close()
+                            break
+                    self._telnet.read_until(self._login_prompt.encode("latin-1"))
+                    self._telnet.write(f"{self._login_response}\n".encode("latin-1"))
+                    connected = True
+                    logger.info(f"{self.name} connected.")
+                except ConnectionRefusedError:
+                    self.status = "Error"
+                    logger.warning(f"Connection refused to {self.name} ({self._host}:{self._port!s}).")
+                    self._stop_event.wait(timeout=300)
+                except Exception:
+                    self.status = "Error"
+                    logger.exception(f"Exception while connecting to {self.name} ({self._host}:{self._port!s}).")
+                    self._stop_event.wait(timeout=5)
+
+            self.status = "Waiting for Data"
+            while connected and not self._stop_event.is_set():
+                try:
+                    # Check new telnet info against regular expression
+                    telnet_output = self._telnet.read_until("\n".encode("latin-1"))
+                    spot = self._parse_line(decode_telnet_bytes(telnet_output))
+                    if spot:
+                        # Add to our list
+                        self._submit(spot)
+
+                        self.status = "OK"
+                        self.last_update_time = datetime.now(pytz.UTC)
+                        logger.debug(f"Data received from {self.name}.")
+
+                except EOFError:
+                    connected = False
+                    if not self._stop_event.is_set():
+                        self.status = "Restarting"
+                        logger.warning(f"Disconnected from {self.name}. Reconnecting...")
+                        self._stop_event.wait(timeout=5)
+                    else:
+                        logger.info(f"{self.name} shutting down...")
+                        self.status = "Shutting down"
+                except Exception:
+                    connected = False
+                    if not self._stop_event.is_set():
+                        self.status = "Error"
+                        logger.exception(f"Exception in {self.name}")
+                        self._stop_event.wait(timeout=5)
+                    else:
+                        logger.info(f"{self.name} shutting down...")
+                        self.status = "Shutting down"
+
+            self.status = "Disconnected"
@@ -59,13 +59,13 @@ class Tiles(HTTPSpotProvider):
                freq=freq,
                mode=Mode.from_name(source_spot["mode"].upper()),
                comment=source_spot["notes"],
-                sig=ActivityName.TILES,
+                activity=ActivityName.TILES,
                # Tiles spots can include POTA & SOTA references, but ignore those on the basis that we will get them separately from the POTA/SOTA providers anyway.
                # Just take the grid reference itself as the single Tiles activity reference.
-                sig_refs=[
+                activity_refs=[
                    ActivityRef(
                        id=source_spot["maidenhead_grid"],
-                        sig=ActivityName.TILES,
+                        activity=ActivityName.TILES,
                        name=source_spot["maidenhead_grid"],
                        latitude=source_spot["latitude"],
                        longitude=source_spot["longitude"],
@@ -34,8 +34,10 @@ class Towers(HTTPSpotProvider):
                dx_call=source_spot["call"].upper(),
                freq=likely_freq,
                comment=source_spot["comment"],
-                sig=ActivityName.TOWERS,
-                sig_refs=[ActivityRef(id=source_spot["ref"], sig=ActivityName.TOWERS, ref_type=ActivityRefType.TOWER)],
+                activity=ActivityName.TOWERS,
+                activity_refs=[
+                    ActivityRef(id=source_spot["ref"], activity=ActivityName.TOWERS, ref_type=ActivityRefType.TOWER)
+                ],
                time=datetime.strptime(response_json["updated"][:10] + source_spot["time"], "%Y-%m-%d%H:%M")
                .replace(tzinfo=pytz.utc)
                .timestamp(),
@@ -92,9 +92,13 @@ class WOTA(HTTPSpotProvider):
                        freq=freq_hz,
                        mode=Mode.from_name(mode),
                        comment=comment,
-                        sig=ActivityName.WOTA,
-                        sig_refs=(
-                            [ActivityRef(id=ref, sig=ActivityName.WOTA, name=ref_name, ref_type=ActivityRefType.SUMMIT)]
+                        activity=ActivityName.WOTA,
+                        activity_refs=(
+                            [
+                                ActivityRef(
+                                    id=ref, activity=ActivityName.WOTA, name=ref_name, ref_type=ActivityRefType.SUMMIT
+                                )
+                            ]
                            if ref
                            else []
                        ),
@@ -23,7 +23,7 @@ class WWBOTA(SSESpotProvider):
        for ref in source_spot["references"]:
            activity_ref = ActivityRef(
                id=ref["reference"],
-                sig=ActivityName.WWBOTA,
+                activity=ActivityName.WWBOTA,
                name=ref["name"],
                latitude=ref["lat"],
                longitude=ref["long"],
@@ -38,8 +38,8 @@ class WWBOTA(SSESpotProvider):
            freq=float(source_spot["freq"]) * 1000000,
            mode=Mode.from_name(source_spot["mode"].upper()) if source_spot.get("mode") else None,
            comment=source_spot["comment"],
-            sig=ActivityName.WWBOTA,
-            sig_refs=refs,
+            activity=ActivityName.WWBOTA,
+            activity_refs=refs,
            time=datetime.fromisoformat(source_spot["time"].replace("Z", "+00:00")).timestamp(),
            # WWBOTA spots can contain multiple references for bunkers being activated simultaneously. For
            # now, we will just pick the first one to use as our grid, latitude and longitude.
@@ -30,11 +30,11 @@ class WWFF(HTTPSpotProvider):
                freq=float(source_spot["frequency_khz"]) * 1000,
                mode=Mode.from_name(source_spot["mode"].upper()),
                comment=source_spot["remarks"],
-                sig=ActivityName.WWFF,
-                sig_refs=[
+                activity=ActivityName.WWFF,
+                activity_refs=[
                    ActivityRef(
                        id=source_spot["reference"],
-                        sig=ActivityName.WWFF,
+                        activity=ActivityName.WWFF,
                        name=source_spot["reference_name"],
                        latitude=source_spot["latitude"],
                        longitude=source_spot["longitude"],
@@ -14,16 +14,18 @@ class XOTA(WebsocketSpotProvider):
    The provider typically doesn't give us a lat/lon or activity explicitly, so our own config provides an activity
    which we can then use for lookups. This functionality is implemented for Toilets on the Air events, of which
    there are several - so a plain lookup of a "TOTA reference" doesn't make sense, it depends on which TOTA, which
-    is why we also provide a sig_ref_prefix in our config. This is applied to the reference ID, so e.g. "T-01" at C3
-    might become "C3 T-01". This allows us to provide location lookups for TOTA at several conferences."""
+    is why we also provide an activity_ref_prefix in our config. This is applied to the reference ID, so e.g. "T-01"
+    at C3 might become "C3 T-01". This allows us to provide location lookups for TOTA at several conferences."""

    ACTIVITY = None

    def __init__(self, provider_config):
        name = provider_config.get("name", "xOTA")
        super().__init__(name, provider_config, provider_config["url"])
-        self.ACTIVITY = str(provider_config["sig"]) if "sig" in provider_config else None
-        self._activity_ref_prefix = str(provider_config["sig_ref_prefix"]) if "sig_ref_prefix" in provider_config else ""
+        self.ACTIVITY = str(provider_config["activity"]) if "activity" in provider_config else None
+        self._activity_ref_prefix = (
+            str(provider_config["activity_ref_prefix"]) if "activity_ref_prefix" in provider_config else ""
+        )

    def _ws_message_to_spot(self, b):
        string = b.decode("utf-8")
@@ -35,11 +37,11 @@ class XOTA(WebsocketSpotProvider):
            dx_call=source_spot["stationCallSign"].upper(),
            freq=float(source_spot["freq"]) * 1000,
            mode=Mode.from_name(source_spot["mode"].upper()),
-            sig=self.ACTIVITY,
-            sig_refs=[
+            activity=self.ACTIVITY,
+            activity_refs=[
                ActivityRef(
                    id=ref_id,
-                    sig=self.ACTIVITY or "",
+                    activity=self.ACTIVITY or "",
                    url=source_spot["reference"]["website"],
                )
            ],
@@ -35,11 +35,11 @@ class ZLOTA(HTTPSpotProvider):
                freq=freq_hz,
                mode=Mode.from_name(source_spot["mode"].upper().strip()),
                comment=source_spot["comments"],
-                sig=ActivityName.ZLOTA,
-                sig_refs=[
+                activity=ActivityName.ZLOTA,
+                activity_refs=[
                    ActivityRef(
                        id=source_spot["reference"],
-                        sig=ActivityName.ZLOTA,
+                        activity=ActivityName.ZLOTA,
                        name=source_spot["name"],
                    )
                ],
@@ -1,6 +1,6 @@
 [project]
 name = "spothole"
-version = "2.2-pre"
+version = "3.0-pre"
 authors = [
    { name = "Ian Renton", email = "ian@ianrenton.com" },
 ]
@@ -3,24 +3,44 @@ openapi: 3.1.0
 info:
  title: Spothole API
  description: |-
-    Spothole is a utility to aggregate "spots" from amateur radio DX clusters and xOTA spotting sites, and provide an open JSON API as well as a website to browse the data.
-
-    While there are other web-based interfaces to DX clusters, and sites that aggregate spots from various outdoor activity programmes for amateur radio, Spothole differentiates itself by supporting a large number of data sources, and by being "API first" rather than just providing a web front-end. This allows other software to be built on top of it. Spothole itself is also open source, Public Domain licenced code that anyone can take and modify.
-
-    The API calls described below allow third-party software to access data from Spothole, and receive data on spots and alerts in a consistent format regardless of the data sources used by Spothole itself. Utility calls are also provided for general data lookups.
-
-    Please note that the data coming out of Spothole is only as good as the data going in. People mis-hear and make typos when spotting callsigns all the time, and there are plenty of areas where Spothole's location data may be inaccurate. If you are doing something where accuracy is important, such as contesting, you should not rely on Spothole's data to fill in any gaps in your log.
-
-    Spothole's source code is located at https://git.ianrenton.com/ian/spothole and the README there provides setup instructions if you would like to run your own copy. A demonstration server of Spothole is located at https://spothole.app. The README also contains some examples of how you could query the API of the demonstration server to integrate the data into your own apps.
+    Spothole is a utility to aggregate "spots" from amateur radio DX clusters and xOTA spotting sites, and provide an open JSON API as well as a website to browse the data. This page is an OpenAPI specification which describes Spothole's API. Clients can use this API to retrieve all the spots, alerts, and other information known to Spothole.

+    You can find out more information about Spothole at https://spothole.app/help, and specifically about creating a client to this API at https://spothole.app/help/usage/clients.
+    
+    The API provided by https://spothole.app is provided free of charge, and no authentication is required. By using it, you accept the following:
+    * You wrote the client code yourself, OR, if you got an AI to write it for you, you promise to read and understand what it wrote before contacting me about any problems.
+    * You set a sensible refresh rate and will not try to take down the server by bombarding it with tons of requests.
+    * There is no uptime guarantee. This is a hobby project and sometimes I will accidentally break stuff.
+    * Trans rights are human rights.
+    
    ## Changelog

+    ### 3.0
+
+    The term "SIG" (Special Interest Group), which Spothole inherited from ADIF, has been replaced with "activity" throughout the API.
+
+    * **Breaking change:** In spot and alert data, `sig` has been renamed to `activity` and `sig_refs` to `activity_refs`.
+    * **Breaking change:** In activity reference data (i.e. each entry in `activity_refs`, and the response of the activity reference lookup), `sig` has been renamed to `activity`.
+    * **Breaking change:** The `dx_location_source` value "SIG REF LOOKUP" has been renamed to "ACTIVITY REF LOOKUP".
+    * **Breaking change:** The `/spots`, `/spots/stream`, `/alerts` and `/alerts/stream` query parameter `sig` has been renamed to `activity`, and its special value `NO_SIG` to `NO_ACTIVITY`. The `/spots` and `/spots/stream` query parameters `needs_sig` and `needs_sig_ref` have been renamed to `needs_activity` and `needs_activity_ref`. When using the `fields` query parameter, use the new field names `activity` and `activity_refs`.
+    * **Breaking change:** `/lookup/sigref` has been renamed to `/lookup/activityref`, and its `sig` query parameter has been renamed to `activity`.
+    * **Breaking change:** POST `/spot` now expects `activity` and `activity_refs` in the `spot` object, rather than `sig` and `sig_refs`.
+    * **Breaking change:** In the `/options` response, `sigs` has been renamed to `activities`, and within each activity, `sig_type` has been renamed to `activity_type`.
+    * **Breaking change:** In the `/status` response, `sig_ref_data_providers` has been renamed to `activity_ref_data_providers`, and within each provider, `sig_name` has been renamed to `activity_name`.
+    
+    #### Upgrading a client from v2 to v3 API endpoints
+
+    In v3.0 of Spothole, the `v2` (and `v1`) API endpoints will be maintained for backwards compatibility, so if you have written a client against the `v2` API, it will continue to receive `sig`, `sig_refs` etc. as before. However, you are encouraged to move to the `v3` API endpoints as soon as possible.
+
+    To upgrade, replace `v2` with `v3` in the URLs your code calls, then rename any use of the fields, query parameters and values listed above. If you use the activity reference lookup, call `/lookup/activityref?activity=...&id=...` instead of `/lookup/sigref?sig=...&id=...`.
+
    ### 2.2
    
    * Renamed AMSAT SIG to "Satellite" as AMSAT is a specific organisation not just a general term for satellite QSOs
    * Removed `alert_type` from alert data. Contest, DXpedition and Satellite alerts now give those values in `sig` instead, alongside the existing outdoor activity programmes. Teeeeechnically a breaking change but AlertType is so new I doubt anyone is using it yet, so slipped this one in anyway. Sorry :)
    * Added QRP, RaDAR Rally, /AM and /MM activities
    * Added `has_refs` and `alerts_possible` to Activity data
+    * Added `dx_grid`, `dx_latitude` and `dx_longitude` to alert data

    ### 2.1
    
@@ -101,10 +121,10 @@ info:
  license:
    name: The Unlicense
    url: https://unlicense.org/#the-unlicense
-  version: 2.0
+  version: 3.0

 servers:
-  - url: https://spothole.app/api/v2
+  - url: https://spothole.app/api/v3

 tags:
  - name: Spots
@@ -395,7 +415,7 @@ paths:
                example: "Failed"


-  /lookup/sigref:
+  /lookup/activityref:
    get:
      tags:
        - Utilities
@@ -404,7 +424,7 @@ paths:
        Perform a lookup of data about a certain reference, providing the activity and the ID of the
        reference. An ActivityRef structure will be returned containing the activity and ID, plus any other
        information Spothole could find about it.
-      operationId: sigref
+      operationId: activityref
      parameters:
        - $ref: '#/components/parameters/ActivityRefLookupActivity'
        - $ref: '#/components/parameters/ActivityRefLookupId'
@@ -460,7 +480,7 @@ paths:
        Supply a JSON object containing a `spot` sub-object (the spot data) and an optional `handling` sub-object
        containing server-side instructions such as upstream submission). Check `spot_submit_providers` in the
        `/options` response to see which activities and providers support upstream submission. cURL example:
-        `curl --request POST --header \"Content-Type: application/json\" --data '{\"spot\":{\"dx_call\":\"M0TRT\",\"time\":1760019539,\"freq\":14200000,\"comment\":\"Test spot please ignore\",\"de_call\":\"M0TRT\"}}' https://spothole.app/api/v2/spot`"
+        `curl --request POST --header \"Content-Type: application/json\" --data '{\"spot\":{\"dx_call\":\"M0TRT\",\"time\":1760019539,\"freq\":14200000,\"comment\":\"Test spot please ignore\",\"de_call\":\"M0TRT\"}}' https://spothole.app/api/v3/spot`"
      operationId: spot
      requestBody:
        description: Object containing a "spot" sub-object with the spot data, and an optional "handling" sub-object with server-side instructions of what to do with it.
@@ -558,32 +578,32 @@ components:
      schema:
        $ref: "#/components/schemas/Source"
    SpotActivity:
-      name: sig
+      name: activity
      in: query
      description: >
        Limit the spots to only ones from one or more activities provided as an argument.
-        To select more than one activity, supply a comma-separated list. The special `sig` name `NO_SIG`
-        matches spots with no activity set. You can use `sig=NO_SIG` to specifically only return generic
+        To select more than one activity, supply a comma-separated list. The special `activity` name `NO_ACTIVITY`
+        matches spots with no activity set. You can use `activity=NO_ACTIVITY` to specifically only return generic
        spots with no associated activity. You can also use combinations to request for example POTA + no
        activity, but reject other activities. If you want to request 'every activity and not No Activity', see the
-        `needs_sig` query parameter for a shortcut.
+        `needs_activity` query parameter for a shortcut.
      schema:
-        $ref: "#/components/schemas/ActivityNameIncludingNoSig"
+        $ref: "#/components/schemas/ActivityNameIncludingNoActivity"
    SpotNeedsActivity:
-      name: needs_sig
+      name: needs_activity
      in: query
      description: >
        Limit the spots to only ones with an activity such as POTA. Because supplying all
-        known activities as a `sigs` parameter is unwieldy, and leaving `sigs` blank will also return spots
+        known activities as an `activity` parameter is unwieldy, and leaving `activity` blank will also return spots
        with *no* activity, this parameter can be set true to return only spots with an activity, regardless of
-        what it is, so long as it's not blank. This is the equivalent of supplying the `sig` query
-        param with a list of every known activity apart from the special `NO_SIG` value. This is what Field
+        what it is, so long as it's not blank. This is the equivalent of supplying the `activity` query
+        param with a list of every known activity apart from the special `NO_ACTIVITY` value. This is what Field
        Spotter uses to exclude generic cluster spots and only retrieve xOTA things.
      schema:
        type: boolean
        default: false
    SpotNeedsActivityRef:
-      name: needs_sig_ref
+      name: needs_activity_ref
      in: query
      description: >
        Limit the spots to only ones which have at least one reference (e.g. a park reference) for
@@ -722,14 +742,14 @@ components:
      schema:
        $ref: "#/components/schemas/Source"
    AlertActivity:
-      name: sig
+      name: activity
      in: query
      description: >
        Limit the alerts to only ones from one or more activities. To select more than one
-        activity, supply a comma-separated list. The special value 'NO_SIG' can be included to return alerts
-        specifically without an associated activity (i.e. general DXpeditions).
+        activity, supply a comma-separated list. The special value 'NO_ACTIVITY' can be included to return alerts
+        specifically without an associated activity.
      schema:
-        $ref: "#/components/schemas/ActivityNameIncludingNoSig"
+        $ref: "#/components/schemas/ActivityNameIncludingNoActivity"
    AlertDxContinent:
      name: dx_continent
      in: query
@@ -838,9 +858,9 @@ components:
        type: string
        example: M0TRT
    ActivityRefLookupActivity:
-      name: sig
+      name: activity
      in: query
-      description: Activity, e.g. outdoor activity programme such as POTA (still named "sig" in the API for backwards compatibility)
+      description: Activity, e.g. outdoor activity programme such as POTA
      required: true
      schema:
        $ref: "#/components/schemas/ActivityName"
@@ -937,11 +957,11 @@ components:
        - EVENT
      example: TRADITIONAL

-    ActivityNameIncludingNoSig:
+    ActivityNameIncludingNoActivity:
      oneOf:
        - $ref: "#/components/schemas/ActivityName"
        - type: string
-          enum: [ NO_SIG ]
+          enum: [ NO_ACTIVITY ]
      example: POTA

    ActivityRefType:
@@ -1067,7 +1087,7 @@ components:
      type: string
      enum:
        - SPOT
-        - "SIG REF LOOKUP"
+        - "ACTIVITY REF LOOKUP"
        - "GRID"
        - "HOME QTH"
        - DXCC
@@ -1089,8 +1109,8 @@ components:
          type: string
          description: Activity reference ID.
          example: GB-0001
-        sig:
-          description: Activity that this reference is in. Still named "sig" in the API for backwards compatibility.
+        activity:
+          description: Activity that this reference is in.
          $ref: "#/components/schemas/ActivityName"
        name:
          type: string
@@ -1204,7 +1224,7 @@ components:
            itself, or from a lookup of the activity ref (e.g. park) it's likely quite accurate, but if
            we had to fall back to QRZ lookup, or even a location based on the DXCC itself, it will
            be a lot less accurate. "SPOT" indicates the location source was the spot itself from the
-            spotting service. "SIG REF LOOKUP" indicates that the spot didn't provide a location,
+            spotting service. "ACTIVITY REF LOOKUP" indicates that the spot didn't provide a location,
            but we looked it up from reference data. "GRID" indicates that the spot provided some
            location data such as a Maidenhead, UK Ordnance Survey or Irish grid reference, but the
            location is likely less accurate than "SPOT". "HOME QTH" indicates we looked up the DX
@@ -1217,7 +1237,7 @@ components:
          type: boolean
          description: >
            Does the software think the location is good enough to put a marker on a map? This is
-            true if the source is "SPOT", "SIG REF LOOKUP" or "GRID", or alternatively if
+            true if the source is "SPOT", "ACTIVITY REF LOOKUP" or "GRID", or alternatively if
            the source is "HOME QTH" and the callsign doesn't have a slash in it (i.e. operator
            likely at home).
          example: true
@@ -1314,14 +1334,14 @@ components:
          type: string
          description: Comment left by the spotter, if any
          example: "59 in NY 73"
-        sig:
-          description: Activity, e.g. outdoor activity programme such as POTA (still named "sig" in the API for backwards compatibility)
+        activity:
+          description: Activity, e.g. outdoor activity programme such as POTA
          $ref: "#/components/schemas/ActivityName"
-        sig_refs:
+        activity_refs:
          type: array
          items:
            $ref: '#/components/schemas/ActivityRef'
-          description: Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO. Still named "sig_refs" in the API for backwards compatibility.
+          description: Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO.
        qrt:
          type: boolean
          description: QRT state. Some APIs return spots marked as QRT. Otherwise we can check the comments.
@@ -1363,7 +1383,7 @@ components:
              type: boolean
              description: >
                If true, forward the spot to an external upstream provider (e.g. POTA, SOTA) rather
-                than only adding it to this Spothole server. Requires `sig`, at least one `sig_refs`
+                than only adding it to this Spothole server. Requires `activity`, at least one `activity_refs`
                entry, and `upstream_provider` to be set. Check `spot_submit_providers` in the
                /options response to see which activities and providers support this.
              default: false
@@ -1452,6 +1472,21 @@ components:
          type: integer
          description: ITU zone of the DX operator
          example: 14
+        dx_grid:
+          type: string
+          description: >
+            Maidenhead grid locator for the activator's location, if known.
+          example: IO91aa
+        dx_latitude:
+          type: number
+          description: >
+            Latitude of the activator's location, if known, in degrees.
+          example: 51.2345
+        dx_longitude:
+          type: number
+          description: >
+            Longitude of the activator's location, if known, in degrees.
+          example: -1.2345
        freqs_modes:
          type: string
          description: An indication of the frequencies and modes that the activation will use, if provided.
@@ -1487,14 +1522,14 @@ components:
          type: string
          description: Comment made by the activator, if any
          example: "2025 DXpedition to null island"
-        sig:
-          description: Activity, e.g. outdoor activity programme such as POTA (still named "sig" in the API for backwards compatibility)
+        activity:
+          description: Activity, e.g. outdoor activity programme such as POTA
          $ref: "#/components/schemas/ActivityName"
-        sig_refs:
+        activity_refs:
          type: array
          items:
            $ref: '#/components/schemas/ActivityRef'
-          description: Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO. Still named "sig_refs" in the API for backwards compatibility.
+          description: Activity references. We allow multiple here for e.g. n-fer activations, unlike ADIF SIG_INFO.
        url:
          type: string
          description: A URL linking to more information about the alert, e.g. DXpedition or contest info.
@@ -1588,8 +1623,8 @@ components:
    Activity:
      type: object
      description: >
-        Represents an activity (a term which replaces the older "Special Interest Group" or "SIG" terminology,
-        though `sig`-prefixed field names remain for API backwards compatibility).
+        Represents an activity, such as an outdoor activity programme (e.g. POTA), or another kind of operating
+        (e.g. Contest, DXpedition).
      properties:
        name:
          description: The abbreviated name of the activity
@@ -1598,12 +1633,11 @@ components:
          type: string
          description: The full name of the activity
          example: Parks on the Air
-        sig_type:
-          type: boolean
+        activity_type:
          description: >
            Whether the activity is traditional (e.g. EME), adventure (e.g. POTA), regional (e.g. WAB), or for a
            specific event (e.g. MOTA). Generally for Spothole's own internal use, clients probably won't need this.
-            Used to group them in the web UI. Still named "sig_type" in the API for backwards compatibility.
+            Used to group them in the web UI.
          $ref: "#/components/schemas/ActivityType"
        has_refs:
          type: boolean
@@ -1982,7 +2016,7 @@ components:
    StaticDataProviderStatus:
      type: object
      properties:
-        sig_name:
+        name:
          type: string
          description: The name of the provider.
          example: K0SWE
@@ -2004,9 +2038,9 @@ components:
    ActivityRefDataProviderStatus:
      type: object
      properties:
-        sig_name:
+        activity_name:
          type: string
-          description: The name of the activity. Still named "sig_name" in the API for backwards compatibility.
+          description: The name of the activity.
          example: WWFF
        enabled:
          type: boolean
@@ -2030,7 +2064,7 @@ components:
    CallsignDataProviderStatus:
      type: object
      properties:
-        sig_name:
+        name:
          type: string
          description: The name of the provider.
          example: Country Files
@@ -2169,7 +2203,7 @@ components:
          description: An array of all the static reference data providers.
          items:
            $ref: '#/components/schemas/StaticDataProviderStatus'
-        sig_ref_data_providers:
+        activity_ref_data_providers:
          type: array
          description: An array of all the activity reference data providers.
          items:
@@ -2200,7 +2234,7 @@ components:
          items:
            type: string
            example: "PHONE"
-        sigs:
+        activities:
          type: array
          description: An array of all the supported activities.
          items:
@@ -2238,7 +2272,7 @@ components:
          type: integer
          description: >
            The maximum age, in seconds, of any spot before it will be deleted by the system. When
-            querying the /api/v2/spots endpoint and providing a "max_age" or "since" parameter, there
+            querying the /api/v3/spots endpoint and providing a "max_age" or "since" parameter, there
            is no point providing a number larger than this, because the system drops all spots older
            than this.
          example: 3600
@@ -29,7 +29,7 @@ const PROVIDER_CREDENTIAL_SCHEMAS = {
 // Load server options. Once a successful callback is made from this, we can populate the choice boxes in the form and load
 // any saved values from local storage.
 function loadOptions() {
-    $.getJSON('/api/v2/options', function (jsonData) {
+    $.getJSON('/api/v3/options', function (jsonData) {
        // Store options
        options = jsonData;

@@ -42,8 +42,8 @@ function loadOptions() {
        });

        // Populate activity drop-down
-        $.each(options["sigs"], function (i, activity) {
-            $('#sig').append($('<option>', {
+        $.each(options["activities"], function (i, activity) {
+            $('#activity').append($('<option>', {
                value: activity.name,
                text: activity.name
            }));
@@ -91,8 +91,8 @@ function updateUpstreamArea() {
        return;
    }

-    const sig = $("#sig").val();
-    const providers = (sig && options["spot_submit_providers"][sig]) ? options["spot_submit_providers"][sig] : [];
+    const activity = $("#activity").val();
+    const providers = (activity && options["spot_submit_providers"][activity]) ? options["spot_submit_providers"][activity] : [];

    if (providers.length === 0) {
        $("#upstream-area").hide();
@@ -131,8 +131,8 @@ function updateCredentialsButton() {

 // Get the currently selected upstream provider name
 function getSelectedUpstreamProvider() {
-    const providers = (options && options["spot_submit_providers"] && $("#sig").val())
-        ? (options["spot_submit_providers"][$("#sig").val()] || [])
+    const providers = (options && options["spot_submit_providers"] && $("#activity").val())
+        ? (options["spot_submit_providers"][$("#activity").val()] || [])
        : [];
    if (providers.length === 0) return null;
    if (providers.length === 1) return providers[0];
@@ -197,8 +197,8 @@ function addSpot() {
        const dx = $("#dx-call").val().toUpperCase();
        const freqStr = $("#freq").val();
        const mode = $("#mode")[0].value;
-        const sig = $("#sig")[0].value;
-        const sigRef = $("#sig-ref").val();
+        const activity = $("#activity")[0].value;
+        const activityRef = $("#activity-ref").val();
        const dxGrid = $("#dx-grid").val();
        const comment = $("#comment").val();
        const de = $("#de-call").val().toUpperCase();
@@ -208,8 +208,8 @@ function addSpot() {
        spot["dx_call"] = dx;
        spot["freq"] = parseFloat(freqStr) * 1000;
        if (mode !== "") spot["mode"] = mode;
-        if (sig !== "") spot["sig"] = sig;
-        if (sigRef !== "") spot["sig_refs"] = [{sig: sig, id: sigRef}];
+        if (activity !== "") spot["activity"] = activity;
+        if (activityRef !== "") spot["activity_refs"] = [{activity: activity, id: activityRef}];
        if (dxGrid !== "") spot["dx_grid"] = dxGrid;
        if (comment !== "") spot["comment"] = comment;
        spot["de_call"] = de;
@@ -232,7 +232,7 @@ function addSpot() {
            handling["upstream_credentials"] = loadCredentials(upstreamProviderName);
        }

-        $.ajax("/api/v2/spot", {
+        $.ajax("/api/v3/spot", {
            data: JSON.stringify({spot, handling}),
            contentType: 'application/json',
            type: 'POST',
@@ -291,7 +291,7 @@ $("#mode").change(function () {
 });

 // Update upstream area and credentials button when activity changes
-$("#sig").change(function () {
+$("#activity").change(function () {
    updateUpstreamArea();
 });

@@ -10,7 +10,7 @@ let alerts = [];
 // to alerts
 function loadAlerts() {
    $.ajax({
-        url: '/api/v2/alerts' + buildQueryString(), dataType: 'json', success: function (jsonData) {
+        url: '/api/v3/alerts' + buildQueryString(), dataType: 'json', success: function (jsonData) {
            // Store last updated time
            lastUpdateTime = moment.utc();
            // Store data
@@ -24,7 +24,7 @@ function loadAlerts() {
 // Build a query string for the API, based on the filters that the user has selected.
 function buildQueryString() {
    let str = "?";
-    ["dx_continent", "source", "sig"].forEach(fn => {
+    ["dx_continent", "source", "activity"].forEach(fn => {
        if (!allFilterOptionsSelected(fn)) {
            str = str + getQueryStringFor(fn) + "&";
        }
@@ -210,14 +210,14 @@ function addAlertRowsToTable(tbody, alerts) {
        if (a["dx_calls"] != null) {
            dx_calls_html = a["dx_calls"].map(call => `<a class='dx-link' href='https://qrz.com/db/${call}' target='_new'>${call}</a>`).join(", ");
        }
-        if (dx_calls_html === "" && a["sig"] === "Contest") {
+        if (dx_calls_html === "" && a["activity"] === "Contest") {
            // Contest = true and no DX callsigns, so display "Contest"
            dx_calls_html = "Contest"
        }

        // Format DXpedition country
        let dx_country_html = "";
-        if (a["sig"] === "DXpedition" && a["dx_country"] != null && a["dx_country"] !== "") {
+        if (a["activity"] === "DXpedition" && a["dx_country"] != null && a["dx_country"] !== "") {
            dx_country_html = `<br/>${a["dx_country"]}`;
        }

@@ -252,19 +252,24 @@ function addAlertRowsToTable(tbody, alerts) {

        // Activity or fallback to "General DX"
        let activityText = "General DX";
-        if (a["sig"]) {
-            activityText = a["sig"];
+        if (a["activity"]) {
+            activityText = a["activity"];
        }

        // Format activity refs
        let activityRefs = "";
-        if (a["sig_refs"] != null) {
+        if (a["activity_refs"] != null) {
            const items = [];
-            for (let i = 0; i < a["sig_refs"].length; i++) {
-                if (a["sig_refs"][i]["url"] != null) {
-                    items[i] = `<a href='${encodeURI(a["sig_refs"][i]["url"])}' title='${escapeHtml(a["sig_refs"][i]["name"])}' target='_new' class='activity-ref-link'>${escapeHtml(a["sig_refs"][i]["id"])}</a>`
+            for (let i = 0; i < a["activity_refs"].length; i++) {
+                if (a["activity_refs"][i]["url"] != null) {
+                    items[i] = `<a href='${encodeURI(a["activity_refs"][i]["url"])}' title='${escapeHtml(a["activity_refs"][i]["name"])}' target='_new' class='activity-ref-link'>${escapeHtml(a["activity_refs"][i]["id"])}</a>`
                } else {
-                    items[i] = `${escapeHtml(a["sig_refs"][i]["id"])}`
+                    items[i] = `${escapeHtml(a["activity_refs"][i]["id"])}`
+                }
+                // If this is a satellite alert the ref will just be the satellite, but DX grid is also important, so
+                // show that if we can.
+                if (a["activity_refs"][i]["activity"] === "Satellite" && a["dx_grid"] != null) {
+                    items[i] += " from " + a["dx_grid"];
                }
            }
            activityRefs = items.join(", ");
@@ -278,7 +283,7 @@ function addAlertRowsToTable(tbody, alerts) {
            $tr.append(`<td class='nowrap'>${end_time_formatted}</td>`);
        }
        if (showDX) {
-            $tr.append(`<td class='nowrap'><span class='flag-wrapper hideonmobile' title='${dx_country}'>${dx_flag}</span>${dx_calls_html}${dx_country_html}</td>`);
+            $tr.append(`<td><span class='flag-wrapper hideonmobile' title='${dx_country}'>${dx_flag}</span>${dx_calls_html}${dx_country_html}</td>`);
        }
        if (showFreqsModes) {
            $tr.append(`<td class='hideonmobile'>${freqsModesText}</td>`);
@@ -325,7 +330,7 @@ function addAlertRowsToTable(tbody, alerts) {

 // Load server options. Once a successful callback is made from this, we then query alerts.
 function loadOptions() {
-    $.getJSON('/api/v2/options', function (jsonData) {
+    $.getJSON('/api/v3/options', function (jsonData) {
        // Store options
        options = jsonData;

@@ -333,7 +338,7 @@ function loadOptions() {
        generateMultiToggleFilterCard("#dx_continent_options", "dx_continent", options["continents"]);
        generateMultiToggleFilterCard("#source-options", "source", options["alert_providers"]);
        // Alerts can only ever be tagged with activities that have an alert source, so only offer those as filters here
-        generateActivitiesMultiToggleFilterCard(options["sigs"].filter(o => o["alerts_possible"]), false);
+        generateActivitiesMultiToggleFilterCard(options["activities"].filter(o => o["alerts_possible"]), false);

        // Load URL params. These may select things from the various filter & display options, so the function needs
        // to be called after these are set up, but if the URL params ask for "embedded mode", this will suppress
@@ -20,7 +20,7 @@ function loadSpots() {
        sseAbortController.abort();
    }
    $.ajax({
-        url: '/api/v2/spots' + buildQueryString(), dataType: 'json', success: function (jsonData) {
+        url: '/api/v3/spots' + buildQueryString(), dataType: 'json', success: function (jsonData) {
            // Store data
            spots = jsonData;
            // Update bands display
@@ -39,7 +39,7 @@ function startSSEConnection() {
    sseAbortController = new AbortController();

    // No need to include QRZ/HamQTH credentials because the information wouldn't be displayed on the bands panel anyway
-    fetchEventSource('/api/v2/spots/stream' + buildQueryString(), {
+    fetchEventSource('/api/v3/spots/stream' + buildQueryString(), {
        signal: sseAbortController.signal,
        openWhenHidden: true,

@@ -80,7 +80,7 @@ function expireOldSpots() {
 // in the bands page's version of this, because nothing QRZ.com/HamQTH can provide will affect the display.
 function buildQueryString() {
    let str = "?";
-    ["dx_continent", "de_continent", "mode", "source", "band", "sig"].forEach(fn => {
+    ["dx_continent", "de_continent", "mode", "source", "band", "activity"].forEach(fn => {
        if (!allFilterOptionsSelected(fn)) {
            str = str + getQueryStringFor(fn) + "&";
        }
@@ -281,7 +281,7 @@ function removeDuplicatesForBandPanel(spotList) {
 // Load server options. Once a successful callback is made from this, we then query spots and set up the timer to query
 // spots repeatedly.
 function loadOptions() {
-    $.getJSON('/api/v2/options', function (jsonData) {
+    $.getJSON('/api/v3/options', function (jsonData) {
        // Store options
        options = jsonData;

@@ -295,7 +295,7 @@ function loadOptions() {

        // Populate the filters panel
        generateBandsMultiToggleFilterCard(options["bands"]);
-        generateActivitiesMultiToggleFilterCard(options["sigs"]);
+        generateActivitiesMultiToggleFilterCard(options["activities"]);
        generateMultiToggleFilterCard("#dx_continent_options", "dx_continent", options["continents"]);
        generateMultiToggleFilterCard("#de_continent_options", "de_continent", options["continents"]);
        generateModesMultiToggleFilterCard(options["modes"]);
@@ -67,7 +67,7 @@ function loadURLParams() {
    updateSelectFromParam(params, "limit", "alerts_to_fetch"); // Only on Alerts page
    updateSelectFromParam(params, "max_age", "max_spot_age"); // Only on Map & Bands pages
    updateFilterFromParam(params, "band", "band");
-    updateFilterFromParam(params, "sig", "sig");
+    updateFilterFromParam(params, "activity", "activity");
    updateFilterFromParam(params, "source", "source");
    updateFilterFromParam(params, "mode", "mode");
    updateFilterFromParam(params, "dx_continent", "dx_continent");
@@ -156,41 +156,41 @@ function buildActivityFilterGrid(activity_options) {
    const $grid = $('<div class="row row-cols-2 g-1 mb-1">');
    activity_options.forEach(o => {
        const domSafeName = o["name"].replace(/^[^A-Za-z0-9]+|[^\w]+/gi, "");
-        $grid.append(`<div class="col"><div class="form-check"><input type="checkbox" class="form-check-input filter-button-sig storeable-checkbox" id="filter-button-sig-${domSafeName}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="form-check-label" id="filter-button-label-sig-${domSafeName}" for="filter-button-sig-${domSafeName}" title="${o['description']}"><i class="fa-solid ${o['icon']}"></i> ${o['name']} ${(o["region_flag"] != null) ? o['region_flag'] : ''}</label></div></div>`);
+        $grid.append(`<div class="col"><div class="form-check"><input type="checkbox" class="form-check-input filter-button-activity storeable-checkbox" id="filter-button-activity-${domSafeName}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="form-check-label" id="filter-button-label-activity-${domSafeName}" for="filter-button-activity-${domSafeName}" title="${o['description']}"><i class="fa-solid ${o['icon']}"></i> ${o['name']} ${(o["region_flag"] != null) ? o['region_flag'] : ''}</label></div></div>`);
    });
    return $grid;
 }

 // Generate activities filter card. This one is also a special case. includeGeneralDX controls whether the "General
-// DX" (NO_SIG) option is offered - this doesn't apply on the alerts page, where every alert has an activity.
+// DX" (NO_ACTIVITY) option is offered - this doesn't apply on the alerts page, where every alert has an activity.
 function generateActivitiesMultiToggleFilterCard(activity_options, includeGeneralDX = true) {
    const $list = $('<ul class="list-unstyled filter-section-list ps-0">');

-    const traditional = activity_options.filter(o => o["sig_type"] === "TRADITIONAL");
+    const traditional = activity_options.filter(o => o["activity_type"] === "TRADITIONAL");
    appendActivityFilterSection($list, 'traditional', 'Traditional', true, includeGeneralDX || traditional.length > 0, $body => {
        if (includeGeneralDX) {
-            $body.append(`<div class="w-100 mb-1"><div class="form-check"><input type="checkbox" class="form-check-input filter-button-sig storeable-checkbox" id="filter-button-sig-NO_SIG" value="NO_SIG" autocomplete="off" onClick="filtersUpdated()" checked><label class="form-check-label" id="filter-button-label-sig-NO_SIG" for="filter-button-sig-NO_SIG"><i class="fa-solid fa-tower-cell"></i> General DX</label></div></div>`);
+            $body.append(`<div class="w-100 mb-1"><div class="form-check"><input type="checkbox" class="form-check-input filter-button-activity storeable-checkbox" id="filter-button-activity-NO_ACTIVITY" value="NO_ACTIVITY" autocomplete="off" onClick="filtersUpdated()" checked><label class="form-check-label" id="filter-button-label-activity-NO_ACTIVITY" for="filter-button-activity-NO_ACTIVITY"><i class="fa-solid fa-tower-cell"></i> General DX</label></div></div>`);
        }
        $body.append(buildActivityFilterGrid(traditional));
    });

-    const adventure = activity_options.filter(o => o["sig_type"] === "ADVENTURE");
+    const adventure = activity_options.filter(o => o["activity_type"] === "ADVENTURE");
    appendActivityFilterSection($list, 'adventure', 'Adventure', true, adventure.length > 0, $body => {
        $body.append(buildActivityFilterGrid(adventure));
    });

-    const regional = activity_options.filter(o => o["sig_type"] === "REGIONAL");
+    const regional = activity_options.filter(o => o["activity_type"] === "REGIONAL");
    appendActivityFilterSection($list, 'regional', 'Regional', false, regional.length > 0, $body => {
        $body.append(buildActivityFilterGrid(regional));
    });

-    const event = activity_options.filter(o => o["sig_type"] === "EVENT");
+    const event = activity_options.filter(o => o["activity_type"] === "EVENT");
    appendActivityFilterSection($list, 'event', 'Event', false, event.length > 0, $body => {
        $body.append(buildActivityFilterGrid(event));
    });

    $("#activity-options").append($list);
-    $("#activity-options").append(`<div class="mt-1"><a href="#" onclick="toggleFilterButtons('sig', true); return false;">All</a> &nbsp; <a href="#" onclick="toggleFilterButtons('sig', false); return false;">None</a></div>`);
+    $("#activity-options").append(`<div class="mt-1"><a href="#" onclick="toggleFilterButtons('activity', true); return false;">All</a> &nbsp; <a href="#" onclick="toggleFilterButtons('activity', false); return false;">None</a></div>`);
 }

 // Method called when "All" or "None" is clicked
@@ -10,7 +10,7 @@ let ionosondeChart = null;

 // Load solar conditions
 function loadSolarConditions() {
-    $.getJSON('/api/v2/solar', function (jsonData) {
+    $.getJSON('/api/v3/solar', function (jsonData) {

        // HF

@@ -660,7 +660,7 @@ function dxStatsContientChanged() {

 // Fetch DX stats from the API and render
 function loadDxStats() {
-    $.getJSON('/api/v2/dxstats', function (jsonData) {
+    $.getJSON('/api/v3/dxstats', function (jsonData) {
        dxStatsData = jsonData;
        renderDxStats();
    });
@@ -45,7 +45,7 @@ function loadSpots() {
    // 3) Subscribe to the SSE endpoint (with credentials if we have them) so that updates come with augmented
    // data if they can.
    $.ajax({
-        url: '/api/v2/spots' + buildQueryString(), dataType: 'json', success: function (jsonData) {
+        url: '/api/v3/spots' + buildQueryString(), dataType: 'json', success: function (jsonData) {
            // Store data
            spots = jsonData;
            // Update map
@@ -58,7 +58,7 @@ function loadSpots() {
                // OK, we have credentials and have loaded once without them so the user has a basic map. Now reload
                // with the credentials and replace what's on the map, so we can improve the data.
                $.ajax({
-                    url: '/api/v2/spots' + buildQueryString(),
+                    url: '/api/v3/spots' + buildQueryString(),
                    dataType: 'json',
                    headers: getCredentialHeaders(),
                    success: function (jsonData2) {
@@ -85,7 +85,7 @@ function startSSEConnection() {
    sseAbortController = new AbortController();

    // SSE is going to fetch only a few spots at a time, so now we include QRZ/HamQTH credentials because the delay won't be significant.
-    fetchEventSource('/api/v2/spots/stream' + buildQueryString(), {
+    fetchEventSource('/api/v3/spots/stream' + buildQueryString(), {
        headers: getCredentialHeaders(),
        signal: sseAbortController.signal,
        openWhenHidden: true,
@@ -183,7 +183,7 @@ function removeSpotFromMap(key) {
 // Build a query string for the API, based on the filters that the user has selected.
 function buildQueryString() {
    let str = "?";
-    ["dx_continent", "de_continent", "mode", "source", "band", "sig"].forEach(fn => {
+    ["dx_continent", "de_continent", "mode", "source", "band", "activity"].forEach(fn => {
        if (!allFilterOptionsSelected(fn)) {
            str = str + getQueryStringFor(fn) + "&";
        }
@@ -276,19 +276,19 @@ function getTooltipText(s) {

    // Activity or fallback to source
    let activitySourceText = s["source"];
-    if (s["sig"]) {
-        activitySourceText = s["sig"];
+    if (s["activity"]) {
+        activitySourceText = s["activity"];
    }

    // Format activity refs
    let activityRefs = "";
-    if (s["sig_refs"] != null) {
+    if (s["activity_refs"] != null) {
        const items = [];
-        for (let i = 0; i < s["sig_refs"].length; i++) {
-            if (s["sig_refs"][i]["url"] != null) {
-                items[i] = `<a href='${s["sig_refs"][i]["url"]}' title='${s["sig_refs"][i]["name"]}' target='_new' class='activity-ref-link'>${s["sig_refs"][i]["id"]}</a>`
+        for (let i = 0; i < s["activity_refs"].length; i++) {
+            if (s["activity_refs"][i]["url"] != null) {
+                items[i] = `<a href='${s["activity_refs"][i]["url"]}' title='${s["activity_refs"][i]["name"]}' target='_new' class='activity-ref-link'>${s["activity_refs"][i]["id"]}</a>`
            } else {
-                items[i] = `${s["sig_refs"][i]["id"]}`
+                items[i] = `${s["activity_refs"][i]["id"]}`
            }
        }
        activityRefs = items.join(", ");
@@ -325,7 +325,7 @@ function getTooltipText(s) {
 // Load server options. Once a successful callback is made from this, we then query spots and set up the timer to query
 // spots repeatedly.
 function loadOptions() {
-    $.getJSON('/api/v2/options', function (jsonData) {
+    $.getJSON('/api/v3/options', function (jsonData) {
        // Store options
        options = jsonData;

@@ -339,7 +339,7 @@ function loadOptions() {

        // Populate the filters panel
        generateBandsMultiToggleFilterCard(options["bands"]);
-        generateActivitiesMultiToggleFilterCard(options["sigs"]);
+        generateActivitiesMultiToggleFilterCard(options["activities"]);
        generateMultiToggleFilterCard("#dx_continent_options", "dx_continent", options["continents"]);
        generateMultiToggleFilterCard("#de_continent_options", "de_continent", options["continents"]);
        generateModesMultiToggleFilterCard(options["modes"]);
@@ -20,7 +20,7 @@ function loadSpots() {

    // Make the new query. No credential headers on the first load to keep things quick
    $.ajax({
-        url: '/api/v2/spots' + buildQueryString(), dataType: 'json', success: function (jsonData) {
+        url: '/api/v3/spots' + buildQueryString(), dataType: 'json', success: function (jsonData) {
            // Store data
            spots = jsonData;
            // Update table
@@ -43,7 +43,7 @@ function startSSEConnection() {
    sseAbortController = new AbortController();

    // SSE is going to fetch only a few spots at a time, so now we include QRZ/HamQTH credentials because the delay won't be significant.
-    fetchEventSource('/api/v2/spots/stream' + buildQueryString(), {
+    fetchEventSource('/api/v3/spots/stream' + buildQueryString(), {
        headers: getCredentialHeaders(),
        signal: sseAbortController.signal,
        openWhenHidden: true,
@@ -100,7 +100,7 @@ function startSSEConnection() {
 // Build a query string for the API, based on the filters that the user has selected.
 function buildQueryString() {
    let str = "?";
-    ["dx_continent", "de_continent", "mode", "source", "band", "sig"].forEach(fn => {
+    ["dx_continent", "de_continent", "mode", "source", "band", "activity"].forEach(fn => {
        if (!allFilterOptionsSelected(fn)) {
            str = str + getQueryStringFor(fn) + "&";
        }
@@ -329,19 +329,19 @@ function createNewTableRowsForSpot(s, highlightNew) {

    // Format activity
    let activityText = "General DX";
-    if (s["sig"]) {
-        activityText = s["sig"];
+    if (s["activity"]) {
+        activityText = s["activity"];
    }

    // Format activity refs
    let activityRefs = "";
-    if (s["sig_refs"] != null) {
+    if (s["activity_refs"] != null) {
        const items = [];
-        for (let i = 0; i < s["sig_refs"].length; i++) {
-            if (s["sig_refs"][i]["url"] != null) {
-                items[i] = `<span style="white-space: nowrap;"><a href='${encodeURI(s["sig_refs"][i]["url"])}' title='${escapeHtml(s["sig_refs"][i]["name"])}' target='_new' class='activity-ref-link'>${escapeHtml(s["sig_refs"][i]["id"])}</a></span>`
+        for (let i = 0; i < s["activity_refs"].length; i++) {
+            if (s["activity_refs"][i]["url"] != null) {
+                items[i] = `<span style="white-space: nowrap;"><a href='${encodeURI(s["activity_refs"][i]["url"])}' title='${escapeHtml(s["activity_refs"][i]["name"])}' target='_new' class='activity-ref-link'>${escapeHtml(s["activity_refs"][i]["id"])}</a></span>`
            } else {
-                items[i] = `<span style="white-space: nowrap;">${escapeHtml(s["sig_refs"][i]["id"])}</span>`
+                items[i] = `<span style="white-space: nowrap;">${escapeHtml(s["activity_refs"][i]["id"])}</span>`
            }
        }
        activityRefs = items.join(", ");
@@ -464,7 +464,7 @@ function createNewTableRowsForSpot(s, highlightNew) {
 // Load server options. Once a successful callback is made from this, we then query spots and set up the timer to query
 // spots repeatedly.
 function loadOptions() {
-    $.getJSON('/api/v2/options', function (jsonData) {
+    $.getJSON('/api/v3/options', function (jsonData) {
        // Store options
        options = jsonData;

@@ -478,7 +478,7 @@ function loadOptions() {

        // Populate the filters panel
        generateBandsMultiToggleFilterCard(options["bands"]);
-        generateActivitiesMultiToggleFilterCard(options["sigs"]);
+        generateActivitiesMultiToggleFilterCard(options["activities"]);
        generateMultiToggleFilterCard("#dx_continent_options", "dx_continent", options["continents"]);
        generateMultiToggleFilterCard("#de_continent_options", "de_continent", options["continents"]);
        generateModesMultiToggleFilterCard(options["modes"]);
@@ -1,6 +1,6 @@
 // Load server status
 function loadStatus() {
-    $.getJSON('/api/v2/status', function (jsonData) {
+    $.getJSON('/api/v3/status', function (jsonData) {
        $("#software_version").text(jsonData["software_version"]);
        $("#server_owner_callsign").text(jsonData["server_owner_callsign"]);
        $("#up-since").text(moment().subtract(jsonData["uptime"], 'seconds').fromNow());
@@ -54,10 +54,10 @@ function loadStatus() {
                </div>`);
        });

-        jsonData["sig_ref_data_providers"].forEach(p => {
-            $("#sig_ref_data_providers-status-container").append(`
+        jsonData["activity_ref_data_providers"].forEach(p => {
+            $("#activity_ref_data_providers-status-container").append(`
                <div class="row row-cols-1 row-cols-md-4 g-4 mb-4 mb-md-2">
-                    <div class="col"><strong>${p["sig_name"]}</strong></div>
+                    <div class="col"><strong>${p["activity_name"]}</strong></div>
                    <div class="col">Status: ${p["status"]}</div>
                    <div class="col">Last updated: ${(p["enabled"] && p["last_updated"] > 0) ? moment.unix(p["last_updated"]).utc().fromNow() : "N/A"}</div>
                    <div class="col">References: ${p["enabled"] ? p["reference_count"] : "N/A"}</div>
@@ -123,13 +123,19 @@ class TelnetServer:

        except asyncio.CancelledError:
            pass
+        except (TimeoutError, ConnectionResetError):
+            logger.debug("Telnet client connection timed out or was reset by client")
        except Exception:
            logger.exception("Exception handling telnet client")
        finally:
            logger.debug("Telnet client disconnected")
            self._clients.remove(writer)
-            writer.close()
-            await writer.wait_closed()
+            try:
+                writer.close()
+                await writer.wait_closed()
+            except (TimeoutError, ConnectionResetError, OSError):
+                # Socket already closed or timed out, don't care as we were getting rid of it anyway
+                pass

    def stop(self):
        """Stops the telnet server"""
@@ -1,236 +0,0 @@
-{% extends "base.html" %}
-{% block content %}
-
-<div id="info-container" class="mt-4">
-    <h2 class="mt-4 mb-4">About Spothole</h2>
-    <p>Spothole is a utility to aggregate "spots" from amateur radio DX clusters and xOTA spotting sites, and provide an
-        open JSON API as well as a website to browse the data.</p>
-    <p>While there are several other web-based interfaces to DX clusters, and sites that aggregate spots from various
-        outdoor activity programmes for amateur radio, Spothole differentiates itself by supporting a larger number of
-        data sources, and by being "API first" rather than just providing a web front-end. This allows other software to
-        be built on top of it.</p>
-    <p>The API is deliberately well-defined with an <a href="/apidocs/openapi.yml">OpenAPI specification</a> and <a
-            href="/apidocs">API documentation</a>. The API delivers spots in a consistent format regardless of the data
-        source, freeing developers from needing to know how each individual data source presents its data.</p>
-    <p>Spothole itself is also open source, Public Domain licenced code that anyone can take and modify. <a
-            href="https://git.ianrenton.com/ian/spothole/">The source code is here</a>.</p>
-    <p>The software was written by <a href="https://ianrenton.com">Ian Renton, MØTRT</a> with code contributions by
-        Steven, M1SDH. The full list of thanks due to others can be found at the bottom of this page.</p>
-    <p>This server is running Spothole version {{software_version}}.</p>
-    <h2 class="mt-4 mb-4">Using Spothole</h2>
-    <p>There are a number of different ways to use Spothole, depending on what you want to do with it and your level of
-        technical skill:</p>
-    <ol>
-        <li>You can <b>use it on the web</b>, like you are (probably) doing right now. This is how most people use it,
-            to look up spots and alerts, and make interesting QSOs.
-        </li>
-        <li>If you are using an Android or iOS device, you can <b>"install" it on your device</b>. Spothole is a
-            Progressive Web App, meaning it's not delivered through app stores, but if you open the page on Chrome
-            (Android) or Safari (iOS) there will be an option in the menu to install it. It will then appear in your
-            main app menu.
-        </li>
-        <li>You can <b>embed the web interface in another website</b> to show its spots in a custom dashboard or the
-            like. The usage is explained in more detail in the <a
-                    href="https://git.ianrenton.com/ian/spothole/src/branch/main/README.md">README file</a>.
-        </li>
-        {% if telnet_server_enabled %}
-        <li>You can use it as a traditional telnet-based source of spots, similar to DXSpider and other software, <b>in
-            your desktop logging application</b>. To do this, set up your logger with the server address
-            <code>{{ telnet_server_address }}</code> and port <code>{{ telnet_server_port }}</code>. You can also access
-            it from a terminal with <code>telnet {{ telnet_server_address }} {{ telnet_server_port }}</code>.
-        </li>
-        {% end %}
-        <li>You can <b>write your own client using the Spothole API</b>, using the main Spothole instance to provide
-            data, and do whatever you like with it. The README contains guidance on how to do this, and the full API
-            docs are linked above. You can also find reference implementations in the form of Spothole's own web-based
-            front end, plus my other two tools built on Spothole: <a href="https://fieldspotter.radio">Field Spotter</a>
-            and the <a href="https://qsomap.m0trt.radio">QSO Map Tool</a>.
-        </li>
-        <li>If you want to <b>run your own version of Spothole</b> so you can customise the configuration, such as
-            enabling sources that I disable on the main instance, you can do that too. The README contains not only
-            advice on how to set up Spothole but how to get it auto-starting with systemd, using an nginx reverse proxy,
-            and setting up HTTPS support with certbot.
-        </li>
-        <li>Finally, you can of course download the source code and <b>develop Spothole to meet your needs</b>. Whether
-            you contribute your changes back to the main repository is up to you. As usual, the README file contains
-            some advice on the structure of the repository, and how to get started writing your own spot provider.
-        </li>
-    </ol>
-    <h2 id="faq" class="mt-4">FAQ</h2>
-    <h4 class="mt-4">"Spots"? "DX Clusters"? What does any of this mean?</h4>
-    <p>This is a tool for amateur ("ham") radio users. Many amateur radio operators like to make contacts with others
-        who are doing something more interesting than sitting in their home "shack", such as people in rarely-seen
-        countries, remote islands, or on mountaintops. Such operators are often "spotted", i.e. when someone speaks to
-        them, they will put the details such as their operating frequency into an online system, to let others know
-        where to find them. A DX Cluster is one type of those systems. Most outdoor radio awards programmes, such as
-        "Parks on the Air" (POTA) have their own websites for posting spots.</p>
-    <p>Spothole is an "aggregator" for those spots, so it checks lots of different services for data, and brings it all
-        together in one place. So no matter what kinds of interesting spots you are looking for, you can find them
-        here.</p>
-    <p>As well as spots, it also provides a similar feed of "alerts". This is where amateur radio users who are going to
-        interesting places soon will announce their intentions.</p>
-    <h4 class="mt-4">What are "DX", "DE" and modes?</h4>
-    <p>In amateur radio terminology, the "DX" contact is the "interesting" one that is using the frequency shown and
-        looking for callers. They might be on a remote island or just in a local park, but either way it's interesting
-        enough that someone has "spotted" them. The callsign listed under "DE" is the person who entered the spot of the
-        "DX" operator. "Modes" are the type of communication they are using. For example you might see "CW" which is
-        Morse Code, or voice "modes" like SSB or FM, or more exotic "data" modes which are used for computer-to-computer
-        communication.</p>
-    <h4 class="mt-4">What data sources are supported?</h4>
-    <p>Spothole can retrieve spots from: <a href="https://www.dxcluster.info/telnet/">Telnet-based DX clusters</a>, the
-        <a href="https://www.reversebeacon.net/">Reverse Beacon Network (RBN)</a>, the <a
-                href="https://www.aprs-is.net/">APRS Internet Service (APRS-IS)</a>, <a href="https://pota.app">POTA</a>,
-        <a href="https://www.sota.org.uk/">SOTA</a>, <a href="https://wwff.co/">WWFF</a>, <a
-                href="https://www.cqgma.org/">GMA</a>, <a href="https://wwbota.net/">WWBOTA</a>, <a
-                href="http://www.hema.org.uk/">HEMA</a>, <a href="https://www.parksnpeaks.org/">Parks 'n' Peaks</a>, <a
-                href="https://ontheair.nz">ZLOTA</a>, <a href="https://www.wota.org.uk/">WOTA</a>, <a
-                href="https://llota.app">LLOTA</a>, <a href="https://wwtota.com">WWTOTA</a>, <a
-                href="https://tilesontheair.com/">Tiles on the Air</a>, the <a href="https://ukpacketradio.network/">UK
-            Packet Repeater Network</a>, and any site based on the <a href="https://github.com/nischu/xOTA">xOTA
-            software by nischu</a>.</p>
-    <p>Spothole can retrieve alerts from: <a href="https://www.ng3k.com/">NG3K</a>, <a href="https://pota.app">POTA</a>,
-        <a href="https://www.sota.org.uk/">SOTA</a>, <a href="https://wwff.co/">WWFF</a>, <a
-                href="https://www.parksnpeaks.org/">Parks 'n' Peaks</a>, <a href="https://www.wota.org.uk/">WOTA</a> and
-        <a href="https://www.beachesontheair.com/">BOTA</a>. It also fetches contest dates from
-        <a href="https://contestcalendar.com/">WA7BNM Contest Calendar</a> and RSGB contest calendars.</p>
-    <p>Spothole can retrieve solar and propagation condition data from <a href="https://www.hamqsl.com">HamQSL</a>, the
-        <a href="https://www.swpc.noaa.gov/">NOAA Space Weather Prediction Center</a>, the <a
-                href="https://giro.uml.edu/">Lowell GIRO Data Center</a> and <a href="https://prop.kc2g.com/">prop.kc2g.com</a>
-        by KC2G.</p>
-    <p>Spothole can also perform lookups for callsign data on behalf of the user from <a
-            href="https://qrz.com">QRZ.com</a> and <a href="https://hamqth.com">HamQTH</a>.</p>
-    <p>Note that the server owner has not necessarily enabled all these data sources. In particular it is common to
-        disable RBN, to avoid the server being swamped with FT8 traffic, and to disable APRS-IS and UK Packet Net so
-        that the server only displays stations where there is likely to be an operator physically present for a QSO.</p>
-    <p>Between the various data sources, the following activities / special interest groups are supported: Contests,
-        DXpeditions, Aeronautical Mobile, Maritime Mobile, EME/Moonbounce, Amateur Satellite, QRP, Parks on the Air
-        (POTA), Summits on the Air (SOTA), Worldwide Flora & Fauna (WWFF), Global Mountain Activity (GMA), Worldwide
-        Bunkers on the Air (WWBOTA), HuMPs Excluding Marilyns Award (HEMA), Islands on the Air (IOTA), Mills on the Air
-        (MOTA), the Amateur Radio Lighthouse Society (ARLHS), International Lighthouse Lightship Weekend (ILLW), Silos
-        on the Air (SIOTA), World Castles Award (WCA), New Zealand on the Air (ZLOTA), Keith Roget Memorial National
-        Parks Award (KRMNPA), South Australia National Parks and Conservation Parks Award (SANPCPA), Wainwrights on the
-        Air (WOTA), Beaches on the Air (BOTA), Lagos y Lagunas On the Air (LLOTA), Towers on the Air, Tiles on
-        the Air, Worked All Britain (WAB), Worked All Ireland (WAI), Diploma Municipios de España (DME), Diploma
-        Faros de España (FEA), Diploma Muesos de España (DMUE), Diploma Castillos de España (DCE), Diploma Monumentos y
-        Vestigios de España (DMVE), Diploma Estaciones de Ferrocarril de España (DEFE), Diploma Teatri Musei e Belle
-        Arti (DTMBA), British Inland Waterways on the Air (BIWOTA), Castles on the Air (COTA), Polish Gmina Award (PGA),
-        Diplôme des Moulins de France (DMF), RaDAR Rally, and Toilets on the Air.</p>
-    <p>As of the time of writing in August 2026, I think Spothole captures most radio programmes that have a
-        defined, downloadable reference list, and almost certainly those that have a spotting/alerting API. If you know
-        of one I've missed, please let me know!</p>
-    <h4 class="mt-4">Why can I filter spots by both Activity and Source? Isn't that basically the same thing?</h4>
-    <p>Mostly, but not quite. While POTA spots generally come from the POTA source and so on, there are a few
-        exceptions:</p>
-    <ol>
-        <li>Sources like GMA and Parks 'n' Peaks provide spots for multiple different programmes (activities).</li>
-        <li>Cluster spots may name activities in their comment, in which case the source remains the Cluster, but an
-            activity is assigned.
-        </li>
-        <li>Some activities, such as Worked all Britain (WAB), don't have their own spotting site and can <em>only</em>
-            be identified through comments on spots retrieved from other sources.
-        </li>
-    </ol>
-    <p>Spothole's web interface exists not just for the end user, but also as a reference implementation for the API, so
-        I have chosen to demonstrate both methods of filtering.</p>
-    <h4 class="mt-4">How is this better than DXheat, DXsummit, POTA's own website, etc?</h4>
-    <p>It's probably not? But it's nice to have choice.</p>
-    <p>I think it's got three key advantages over those sites:</p>
-    <ol>
-        <li>It provides a public, <a href="/apidocs">well-documented API</a> with an <a href="/apidocs/openapi.yml">OpenAPI
-            specification</a>. Other sites don't have official APIs or don't bother documenting them publicly, because
-            they want people to use their web page. I like Spothole's web page, but you don't have to use it&mdash;if
-            you're a programmer, you can build your own software on Spothole's API. Spothole does the hard work of
-            taking all the various data sources and providing a consistent, well-documented data set. You can then do
-            the fun bit of writing your own application.
-        </li>
-        <li>It grabs data from a lot more sources. I've seen other sites that pull in DX Cluster and POTA spots
-            together, but nothing on the scale of what Spothole supports.
-        </li>
-        <li>Spothole is open source, so anyone can contribute the code to support a new data source or add new features,
-            and share them with the community.
-        </li>
-    </ol>
-    <h4 class="mt-4">Why does this website ask me if I want to install it?</h4>
-    <p>Spothole is a Progressive Web App, which means you can install it on an Android or iOS device by opening the site
-        in Chrome or Safari respectively, and clicking "Install" on the pop-up panel. It'll only prompt you once, so if
-        you dismiss the prompt and change your mind, you'll find an Install / Add to Home Screen option on your
-        browser's menu.</p>
-    <p>Installing Spothole on your phone is completely optional, the website works exactly the same way as the "app"
-        does.</p>
-    <h4 class="mt-4">Why hasn't my spot/alert shown up yet?</h4>
-    <p>To avoid putting too much load on the various servers that Spothole connects to, the Spothole server only polls
-        them once every two minutes for spots, and once every 30 minutes for alerts. (Some sources, such as DX clusters,
-        RBN, APRS-IS and WWBOTA use a non-polling mechanism, and their updates will therefore arrive more quickly.) Then
-        if you are using the web interface, that has its own rate at which it fetches the data from Spothole. This is
-        instant for the main spots list, with new spots appearing immediately at the top of the list, while the map and
-        bands displays update once a minute, and the alerts display updates once every 5 minutes. So you could be
-        waiting around three minutes to see a newly added spot, or 40 minutes to see a newly added alert.</p>
-    <h4 class="mt-4">What licence does Spothole use?</h4>
-    <p>Spothole's source code is licenced under the Public Domain. You can write a Spothole client, run your own server,
-        modify it however you like, you can claim you wrote it and charge people £1000 for a copy, I don't really mind.
-        (Please don't do the last one. But if you're using my code for something cool, it would be nice to hear from
-        you!)</p>
-    <h4 class="mt-4">What commands are supported in the telnet server?</h4>
-    <p>Currently, <code>exit</code>, and nothing else. Support for some DXSpider-like commands may be added to Spothole
-        in due course, but at the moment if you want to add Spothole as a telnet cluster data source to your desktop
-        logging application, that application must handle filtering itself.</p>
-    <h2 id="accuracy" class="mt-4">Data Accuracy</h2>
-    <p>Please note that the data coming out of Spothole is only as good as the data going in. People mis-hear and make
-        typos when spotting callsigns all the time. There are also plenty of cases where Spothole's data, particularly
-        location data, may be inaccurate. For example, there are POTA parks that span multiple US states, countries that
-        span multiple CQ zones, portable operators with no requirement to sign /P, etc. If you are doing something where
-        accuracy is important, such as contesting, you should not rely on Spothole's data to fill in any gaps in your
-        log.</p>
-    <p>In the Spothole user interface, under "Your Data", you can enter your credentials for QRZ.com and/or HamQTH if
-        you have them. This allows Spothole to augment its data with lookups from these services. See the following
-        section, Privacy, for details of how these are handled. If you are looking at the map and see lots of spots in
-        the geographic centre of countries, allowing these lookups will help. For QRZ.com a paid account is required to
-        look up operator locations.</p>
-    <h2 id="privacy" class="mt-4">Privacy</h2>
-    <p>Spothole collects no data about you on a permanent basis. All spots and alerts are "timed out" and deleted from
-        the system after a set interval, which by default is one hour for spots and one week for alerts.</p>
-    <p>Settings you select from Spothole's menus are sent to the server, in order to provide the data with the requested
-        filters. They are also stored in your browser's local storage, so that your preferences are remembered between
-        sessions.</p>
-    <p>The data you provide can optionally include your login credentials for QRZ.com and HamQTH. You can provide these
-        in the "Your Data" menu of most pages. If you do, Spothole will augment the data it produces with lookups from
-        these
-        services, which can for example provide more accurate markers on the map tab, and operator names when you mouse
-        over a DX callsign. Spothole will still work fine if you don't provide these. The values you enter are sent to
-        Spothole via HTTPS so are protected in transit, though of course you do have to trust Spothole with this
-        sensitive data in order to use this feature.</p>
-    <p>Any data you send as part of a query, such as your QRZ or HamQTH credentials, is used only for the lifetime of
-        that
-        query and is not saved anywhere apart from your own device.</p>
-    <p>Spothole uses no trackers, no ads, and no cookies.</p>
-    {% if len(web_ui_options["support_button_html"]) > 0 %}
-    <p><strong>Caveat: </strong> The owner of this server has chosen to inject their own content into the "spots" page.
-        This is designed for a "donate" or "support this server" button. The functionality of this injected content is
-        the responsibility of the server owner, rather than the Spothole software.</p>
-    {% end %}
-    <p>Spothole is open source, so you can audit <a href="https://git.ianrenton.com/ian/spothole">the code</a> if you
-        like.</p>
-    <h2 class="mt-4">Thanks</h2>
-    <p>This project would not have been possible without those volunteers who have taken it upon themselves to run DX
-        clusters, xOTA programmes, DXpedition lists, callsign lookup databases, solar conditions and propagation
-        modelling software, and other online tools on which Spothole's data is based. The vast majority of these are not
-        profit-seeking and are made purely for the love of the hobby and to help others in the community. Spothole is
-        standing on the shoulders of giants, who deserve a huge amount of thanks for all the work they put in.</p>
-    <p>The following people have specifically helped develop Spothole either by contributing code, requesting features,
-    or helping squash bugs: Steven M1SDH, Dan S50U, Matt W1CDN, Norby LX1NO, Andrew VK3ARR, Mario DL4MFM, Mark M5TEA,
-        Michael G7VJR, Rob G7LAS, Ed DD5LP, Raph F4LUB, Luc ON7KEC, Richard GD4OFB, Daniel PY2TDB, Alan VK1AO,
-        Andrew WK1AD, Ullrich DF5WC, Wayne N3CDF, Jonathan G4IVV, Erik N2EPE, Sorin YO9TSN, Matt HB9HWI, Priit ES1TEB,
-        Leigh KG7WED, Jouni OH3CUF, Onno VK6FLAB, and Bruce WA7BNM. (If I've forgotten you, let me know!)</p>
-    <p>Spothole is also dependent on a number of Python libraries, such as pyhamtools, and many JavaScript
-        libraries, as well as the Font Awesome icon set and flag icons from the Noto Color Emoji set, and MIT-licenced
-        GeoJSON files for CQ and ITU zones from HA8TKS.</p>
-    <p>The project's name was suggested by Harm DK4HAA.</p>
-    <p>This software is dedicated to the memory of Tom G1PJB, SK, a friend and colleague who sadly passed away around
-        the time I started writing it in Autumn 2025. I was looking forward to showing it to you when it was done.</p>
-</div>
-
-<script>$(document).ready(function () {
-    $("#nav-link-about").addClass("active");
-}); <!-- highlight active page in nav --></script>
-
-{% end %}
@@ -41,14 +41,14 @@
                    </select>
                </div>
                <div class="col-auto">
-                    <label for="sig" class="form-label">Activity</label>
-                    <select id="sig" class="form-select">
+                    <label for="activity" class="form-label">Activity</label>
+                    <select id="activity" class="form-select">
                        <option value="" selected></option>
                    </select>
                </div>
                <div class="col-auto">
-                    <label for="sig-ref" class="form-label">Activity Reference</label>
-                    <input type="text" class="form-control input-narrow" id="sig-ref" placeholder="e.g. GB-0001">
+                    <label for="activity-ref" class="form-label">Activity Reference</label>
+                    <input type="text" class="form-control input-narrow" id="activity-ref" placeholder="e.g. GB-0001">
                </div>
                <div class="col-auto">
                    <label for="dx-grid" class="form-label">DX Grid</label>
@@ -77,7 +77,7 @@

 </div>

-<script src="/static/js/add-spot.js?v=1789927308"></script>
+<script src="/static/js/add-spot.js?v=1790228319"></script>
 <script>$(document).ready(function () {
    $("#nav-link-add-spot").addClass("active");
 }); <!-- highlight active page in nav --></script>
@@ -85,7 +85,7 @@

 </div>

-<script src="/static/js/alerts.js?v=1789927308"></script>
+<script src="/static/js/alerts.js?v=1790228319"></script>
 <script>$(document).ready(function () {
    $("#nav-link-alerts").addClass("active");
 }); <!-- highlight active page in nav --></script>
@@ -76,8 +76,8 @@

 </div>

-<script src="/static/js/spotsbandsandmap.js?v=1789927308"></script>
-<script src="/static/js/bands.js?v=1789927308"></script>
+<script src="/static/js/spotsbandsandmap.js?v=1790228319"></script>
+<script src="/static/js/bands.js?v=1790228319"></script>
 <script>$(document).ready(function () {
    $("#nav-link-bands").addClass("active");
 }); <!-- highlight active page in nav --></script>
@@ -1,6 +1,6 @@
 {% extends "skeleton.html" %}
 {% block head_extra %}
-<link rel="stylesheet" href="/static/css/style.css?v=1789927308" type="text/css">
+<link rel="stylesheet" href="/static/css/style.css?v=1790228319" type="text/css">
 <link href="/static/vendor/css/bootstrap-5.3.8.min.css" rel="stylesheet">
 <link href="/static/vendor/css/fontawesome-6.7.2.min.css" rel="stylesheet">
 <link href="/static/vendor/css/solid-6.7.2.min.css" rel="stylesheet">
@@ -16,10 +16,10 @@
    window.fetchEventSource = fetchEventSource;
 </script>

-<script src="/static/js/utils.js?v=1789927308"></script>
-<script src="/static/js/ui-ham.js?v=1789927308"></script>
-<script src="/static/js/geo.js?v=1789927308"></script>
-<script src="/static/js/common.js?v=1789927308"></script>
+<script src="/static/js/utils.js?v=1790228319"></script>
+<script src="/static/js/ui-ham.js?v=1790228319"></script>
+<script src="/static/js/geo.js?v=1790228319"></script>
+<script src="/static/js/common.js?v=1790228319"></script>
 {% end %}
 {% block body %}
 <div class="container">
@@ -51,8 +51,8 @@
                            class="fa-solid fa-sun"></i> Conditions</a></li>
                    <li class="nav-item ms-4"><a href="/status" class="nav-link" id="nav-link-status"><i
                            class="fa-solid fa-chart-simple"></i> Status</a></li>
-                    <li class="nav-item ms-4"><a href="/about" class="nav-link" id="nav-link-about"><i
-                            class="fa-solid fa-circle-info"></i> About</a></li>
+                    <li class="nav-item ms-4"><a href="/help" class="nav-link" id="nav-link-help"><i
+                            class="fa-solid fa-circle-question"></i> Help</a></li>
                    <li class="nav-item ms-4"><a href="/apidocs" class="nav-link" id="nav-link-api"><i
                            class="fa-solid fa-gear"></i> API</a></li>
                </ul>
@@ -75,10 +75,10 @@
                v{{software_version}}</p>
            <ul class="nav col-md-4 justify-content-end">
                <li class="nav-item">
-                    <a href="/about#faq" class="nav-link px-3 text-body-secondary">FAQ</a>
+                    <a href="/help/faq" class="nav-link px-3 text-body-secondary">FAQ</a>
                </li>
                <li class="nav-item">
-                    <a href="/about#privacy" class="nav-link px-3 text-body-secondary">Privacy</a>
+                    <a href="/help/privacy" class="nav-link px-3 text-body-secondary">Privacy</a>
                </li>
                <li class="nav-item">
                    <a href="https://git.ianrenton.com/ian/spothole" class="nav-link px-3 text-body-secondary">Source
@@ -27,7 +27,7 @@
                </button>
            </div>
            <div class="mt-1">
-                <small>See <a href="/about#privacy">Privacy</a> for more information.</small>
+                <small>See <a href="/help/privacy">Privacy</a> for more information.</small>
            </div>
        </div>
    </div>
@@ -27,7 +27,7 @@
                </button>
            </div>
            <div class="mt-1">
-                <small>See <a href="/about#privacy">Privacy</a> for more information.</small>
+                <small>See <a href="/help/privacy">Privacy</a> for more information.</small>
            </div>
        </div>
    </div>
@@ -284,7 +284,7 @@
 </div>

 <script src="/static/vendor/js/chart-4.4.9.umd.min.js"></script>
-<script src="/static/js/conditions.js?v=1789927308"></script>
+<script src="/static/js/conditions.js?v=1790228319"></script>
 <script>$(document).ready(function () {
    $("#nav-link-conditions").addClass("active");
 }); <!-- highlight active page in nav --></script>
@@ -0,0 +1,43 @@
+{% extends "base.html" %}
+{% block content %}
+
+<div id="info-container" class="mt-4">
+    <h2>Help and Information</h2>
+    <p>Welcome to Spothole's help pages.</p>
+    <p>Spothole is a utility to aggregate spots from amateur radio DX clusters and xOTA spotting sites, and provide an
+        open JSON API as well as a website to browse the data. (If that sounds like nonsense to you, I recommend
+        starting with the <a href="/help/faq">FAQ</a>!)</p>
+    <p>In the sections below, you can find more information about what Spothole is, and how to use it.</p>
+    <ul>
+        <li><a href="/help/about">About Spothole</a></li>
+        <li><a href="/help/usage">How to use Spothole</a>
+            <ul>
+                {% if telnet_server_enabled %}
+                <li><a href="/help/usage/telnet">Connecting via Telnet</a></li>
+                {% end %}
+                <li><a href="/help/usage/clients">Writing your own Client</a></li>
+                <li><a href="/help/usage/embedding">Embedding Spothole in Another Website</a></li>
+                <li><a href="/help/usage/running">Running your own Server</a></li>
+                <ul>
+                    <li><a href="/help/usage/systemd">systemd Configuration</a></li>
+                    <li><a href="/help/usage/nginx">nginx Reverse Proxy Configuration</a></li>
+                    <li><a href="/help/usage/docker">Running using Docker</a></li>
+                    <li><a href="/help/usage/multicluster">Multiple Cluster Nodes with Different Settings</a></li>
+                </ul>
+                <li><a href="/help/usage/modifying">Modifying the Source Code</a></li>
+            </ul>
+        </li>
+        <li><a href="/help/sources">Supported Data Sources</a></li>
+        <li><a href="/help/faq">Frequently Asked Questions (FAQ)</a></li>
+        <li><a href="/apidocs">API Documentation</a></li>
+        <li><a href="/help/accuracy">Data Accuracy</a></li>
+        <li><a href="/help/privacy">Privacy</a></li>
+        <li><a href="/help/thanks">Thanks</a></li>
+    </ul>
+</div>
+
+<script>$(document).ready(function () {
+    $("#nav-link-help").addClass("active");
+}); <!-- highlight active page in nav --></script>
+
+{% end %}
@@ -0,0 +1,18 @@
+{% extends "help_page.html" %}
+{% block help_content %}
+
+    <h2 class="mt-4 mb-4">About Spothole</h2>
+    <p>Spothole is a utility to aggregate "spots" from amateur radio DX clusters and xOTA spotting sites, and provide an
+        open JSON API as well as a website to browse the data.</p>
+    <p>While there are several other web-based interfaces to DX clusters, and sites that aggregate spots from various
+        outdoor activity programmes for amateur radio, Spothole differentiates itself by supporting a larger number of
+        data sources, and by being "API first" rather than just providing a web front-end. This allows other software to
+        be built on top of it.</p>
+    <p>The API is deliberately well-defined with an <a href="/apidocs/openapi.yml">OpenAPI specification</a> and <a
+            href="/apidocs">API documentation</a>. The API delivers spots in a consistent format regardless of the data
+        source, freeing developers from needing to know how each individual data source presents its data.</p>
+    <p>Spothole itself is also open source, Public Domain licenced code that anyone can take and modify. <a
+            href="https://git.ianrenton.com/ian/spothole/">The source code is here</a>.</p>
+    <p>This server is running Spothole version {{software_version}}.</p>
+
+{% end %}
@@ -0,0 +1,17 @@
+{% extends "help_page.html" %}
+{% block help_content %}
+
+    <h2 class="mt-4">Data Accuracy</h2>
+    <p>Please note that the data coming out of Spothole is only as good as the data going in. People mis-hear and make
+        typos when spotting callsigns all the time. There are also plenty of cases where Spothole's data, particularly
+        location data, may be inaccurate. For example, there are POTA parks that span multiple US states, countries that
+        span multiple CQ zones, portable operators with no requirement to sign /P, etc. If you are doing something where
+        accuracy is important, such as contesting, you should not rely on Spothole's data to fill in any gaps in your
+        log.</p>
+    <p>In the Spothole user interface, under "Your Data", you can enter your credentials for QRZ.com and/or HamQTH if
+        you have them. This allows Spothole to augment its data with lookups from these services. See the <a
+                href="/help/privacy">Privacy</a> section for details of how these are handled. If you are looking at the
+        map and see lots of spots in the geographic centre of countries, allowing these lookups will help. For QRZ.com a
+        paid account is required to look up operator locations.</p>
+
+{% end %}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Ian Renton	0ce3ca8d29	First attempt at converting "sig" to "activity" for v3	2026-09-24 07:14:43 +01:00
Ian Renton	d91fa70655	First attempt at converting "sig" to "activity" for v3	2026-09-24 07:09:37 +01:00
Ian Renton	1d0129f7bb	Merge remote-tracking branch 'origin/main'	2026-09-24 06:38:58 +01:00
Ian Renton	02d08c17cd	Release 2.2	2026-09-24 06:38:39 +01:00
Ian Renton	e88295cf4b	Release 2.2	2026-09-24 06:37:58 +01:00
ian	bb9ad4e1f2	Alert DX calls should be allowed to wrap	2026-09-23 21:30:37 +00:00
Ian Renton	9a0a3b938c	Fix satellite grid display	2026-09-23 22:13:45 +01:00
Ian Renton	c26482f06b	Improve the way hamsat alerts work, and add the ability to detect satellite names from spot comments. Closes #149	2026-09-23 22:08:36 +01:00
Ian Renton	981fea57ed	Rationalise docs part 5 #151	2026-09-23 21:42:22 +01:00
Ian Renton	5db79ec85a	Rationalise docs part 4 #151	2026-09-23 18:25:05 +01:00
Ian Renton	2d14342089	Rationalise docs part 3 #151	2026-09-23 17:50:04 +01:00
Ian Renton	c9d0a7652c	Rationalise docs part 2 #151	2026-09-23 17:42:06 +01:00
Ian Renton	b45a6d8b78	Rationalise docs part 1 #151	2026-09-23 17:31:44 +01:00
Ian Renton	31c7c2095e	Improve some error handling. Closes #150	2026-09-23 17:30:12 +01:00
ian	5bdd79c247	Update docs/clients.md	2026-09-23 14:54:07 +00:00
ian	ae6733e853	Update docs/clients.md	2026-09-23 14:53:45 +00:00
Ian Renton	f8343dd036	Extract some common code into telnet_spot_provier as a base class for DX cluster and RBN	2026-09-22 18:35:05 +01:00
Ian Renton	9067f545af	Telnet clients disconnecting shouldn't log an exception	2026-09-20 20:51:01 +01:00
Ian Renton	6037e742cc	Fix mojibake in DX cluster and RBN spot comments where the source uses UTF-8	2026-09-20 19:11:53 +01:00