Magellan NAV 6500/NAV 651084
NMEA OUTPUT DATA FORMAT - VERSION 1.5
APA Autopilot Format A
1 2 3 4 5 6 7 8 9 10
APA,A,A,X.XX,L,N,A,A,XXX.,M,CCC
1 OR’ed Blink and SNR (A = valid, V = invalid)
2 Cycle Lock (A = valid, V = invalid)
3-5 Cross Track, Sense (L = steer left, R = steer
Right), N.Mi. Units
6-7 Arrival Circle, Arrival Perpendicular (crossing
of the line which is perpendicular to the course
line and which passes through the destination
waypoint.
8-9 Bearing dest. LMK. from origin LMK., Magnetic
10 Dest LMK. identifier
APB Autopilot Sentence “B”
1 2 3 4 5 6 7 8 9 10 11 12 13 14
APB,A,A,x.x,a,N,A,A,x.x,a,c—c,x.x,a,x.x,a*hh
1 Status: V = Loran-C Blink or SNR warning
A = general warning flag for other
navigation systems when a
reliable fix is not available.
2 Status: V = Loran-C cycle lock warning flag
A = OK or not used
3 Magnitude of XTE
4 Direction to steer (L, R)
5 XTE units, nautical miles
6 Status: A = arrival circle entered
7 Status: A = perpendicular passed at waypoint
8-9 Bearing origin to destination, M/T
10 Destination waypoint ID
11-12Bearing, present position to destination,
Magnetic or True
13-14Heading to steer to destination waypoint,
Magnetic or True
BWC To Selected Waypoint, Great Circle
1 2 3 4 5 6 7 8 9 10 11 12
BWC,XXXXXX,XXXX.XX,N,XXXXX.XX,W,XXX.,T,XXX.,M,XXX.X,N,CCCC
1 UTC of Bearing
2-3 Lat, N or S of waypoint
4-5 Long, E or W of waypoint
6-7 Bearing, True
8-9 Bearing, Magnetic
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