[GPSNavX]

The status icon (LED) on the GPS, Instruments or AIS panel indicates the serial NMEA data connection state. GREEN if NMEA data is being received and interpretted, YELLOW if NMEA data is being received and not interpretted and RED for no data reception. The state makes no determination to the validity of the NMEA data. One should not use the status icon to determine if an AIS receiver is properly receiving the transmissions of AIS transponders. The physical LEDs on the AIS receiver should be used for that. While MacENC currently does not do anything with the !AIVDM NMEA data, a green status icon upon its reception just indicates a good NMEA data connecton, not a valid VHF reception connection to the real-world of AIS transponders. Mixing the two is apples and oranges. A comparison would be a GPS sending out the NMEA data for the UTC, but that does not indicate proper GPS satellite reception.