If designing a gateway between NMEA 0183 and NMEA 2000, you need exact field mappings. The PDF ensures no data loss during conversion.
NMEA 0183 is a proprietary protocol used in the marine industry for the exchange of data between marine electronics. It is developed and maintained by the National Marine Electronics Association (NMEA). Version 4.11 is a specific release of this standard. Nmea 0183 Version 4.11 Pdf-
The autopilot was listening for $GPGGA (GPS only), not $GNGGA (GPS+GLONASS+Galileo). A version mismatch. If designing a gateway between NMEA 0183 and
Typically uses RS-422 differential drive for better noise immunity. Nmea 0183 Version 4.11 Pdf-