hi Guys,
A quick example on what $GPBWC messages are. Keep in mind that the sentence Identifier can also be displayed as $GNBWC. The message is the same but some GNSS receivers use this format.
$GPBWC
Bearing and distance to waypoint, great circle
eg1. $GPBWC,081837,T,M,N,*13
BWC,225444,4917.24,N,12309.57,W,051.9,T,031.6,M,001.3,N,004*29
225444 UTC time of fix 22:54:44
4917.24,N Latitude of waypoint
12309.57,W Longitude of waypoint
051.9,T Bearing to waypoint, degrees true
031.6,M Bearing to waypoint, degrees magnetic
001.3,N Distance to waypoint, Nautical miles
004 Waypoint ID
eg2. $GPBWC,220516,5130.02,N,00046.34,W,213.8,T,218.0,M,0004.6,N,EGLM*11
1 2 3 4 5 6 7 8 9 10 11 12 13
1 220516 timestamp
2 5130.02 Latitude of next waypoint
3 N North/South
4 00046.34 Longitude of next waypoint
5 W East/West
6 213.0 True track to waypoint
7 T True Track
8 218.0 Magnetic track to waypoint
9 M Magnetic
10 0004.6 range to waypoint
11 N unit of range to waypoint, N = Nautical miles
12 EGLM Waypoint name
13 *11 checksum