NMEA-0183 message: RMC

Position, velocity, and time

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:
GP: GPS only
GN: More than one constellation

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 *