Is there a problem or conflict if 2 GPS sources were connected to the same e165MFD?
One source would have AIS and GPS combined via NMEA 0183 at 38400 baud connected to one of the 0183 NMEA input ports on the 165MFD, the source would have a GPS via NMEA 0183 at 4800 baud connected to the other 0183 NMEA input port on the 165MFD.
One source would have AIS and GPS combined via NMEA 0183 at 38400 baud connected to one of the 0183 NMEA input ports on the 165MFD, the source would have a GPS via NMEA 0183 at 4800 baud connected to the other 0183 NMEA input port on the 165MFD.