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:  | 
                                                                    
| 
                                                                             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 *  |