Bug fixes and minor doc clarifications

providers/spot/rbn.py

@@ -8,7 +8,6 @@ import pytz
 import telnetlib3
 
 from core.config import SERVER_OWNER_CALLSIGN
-from core.constants import CALL_REGEX
 from data.spot import Spot
 from providers.spot.spot_provider import SpotProvider
 
@@ -20,7 +19,7 @@ class RBN(SpotProvider):
     (port 7001) you need to instantiate two copies of this. The port is provided as an argument to the constructor."""
 
     _LINE_PATTERN = re.compile(
-        rf"^DX de ({CALL_REGEX})-.*:\s+([0-9.]+)\s+({CALL_REGEX})\s+(.*)\s+(\d{4}Z)",
+        r"^DX de ([a-z0-9/]+)-.*:\s+([0-9.]+)\s+([a-z0-9/]+)\s+(.*)\s+(\d{4}Z)",
         re.IGNORECASE,
     )