NMEA-0183 message: RMC
Related Topics
Position, velocity, and time
NOTE – The heading computation in this message is derived from consecutive positions. For heading using a moving baseline system, see NMEA-0183 message: PTNL,AVR.
The RMC string is:
$GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A
GPRMC message fields
| Field | Meaning |
|---|---|
| 0 | Message ID $--RMC Talker ID can be: |
| 1 | UTC of position fix |
| 2 | Status A=active or V=void |
| 3 | Latitude |
| 4 | Longitude |
| 5 | Speed over the ground in knots |
| 6 | Track angle in degrees (True) |
| 7 | Date |
| 8 | Magnetic variation, in degrees |
| 9 | The checksum data, always begins with * |