Hello
Regarding GNSS antenna event
If you set I/O - GNSS status ( id 50050) > priority High=> operand On Change
You will get an event for AVLID 71 on every status change
0 - GNSS OFF
1 - GNSS ON, no GPS antenna
2 - GNSS ON, without fix
3 - GNSS ON, with fix
4 - GNSS SLEEP
5 - GNSS Overcurrent/protect state
AVLID 71=1=> antenna disconnected
AVLID 71=5 => possible wire cut (short circuit)
Regarding the GSM antenna event, you can only analyze the signal strength, e.g. in the AVLID 21 parameter - similarly as for AVLID 71
Best regards