NMEA 0183 Version 4.11 is a 2018 update to the widely used marine serial communication standard. It specifically expanded support for multiple Global Navigation Satellite Systems ( ) beyond the traditional GPS. Key Updates in Version 4.11 Expanded GNSS Support : Added dedicated Talker IDs for various satellite constellations: : GPS (USA) : GLONASS (Russia) : Galileo (Europe) : BeiDou (China) : QZSS (Japan) : NavIC/IRNSS (India) : Mixed GNSS (any combination of the above) GNSS System IDs
: Data is sent in "sentences" from a single "talker" to multiple "listeners".
Data is sent in printable ASCII form, consisting of specific "sentences".
Updated codes to help devices distinguish which satellite constellation is providing the data (e.g., GN for multiple constellations, GP for GPS only).