Furuno INMARSAT-C MOBILE EARTH STATION FELCOM 12 - Manual (Page 179)

AP-25
VTG - Course over ground and ground speed
$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh<CR><LF>
| | | | | | | | | |
| | | | | | | | | +------- 6
| | | | | | | | +--------- 5
| | | | | | +--+----------- 4
| | | | +--+----------------- 3
| | +--+----------------------- 2
+--+----------------------------- 1
1. Course over ground, degrees true
2. Course over ground, degrees magnetic
3. Speed over ground, knots
4. Speed over ground, km/h
5. Mode indicator(see note)
6. Checksum
NOTE Positioning system Mode indicator:
A = Autonomous
D = Differential
E = Estimated (dead reckoning)
M = Manual input
S = Simulator
N = Data not valid
The positioning system Mode indicator field shall not be a null field.
WPL - Waypoint location
$--WPL,llll.lll,a,yyyyy.yyy,a,c--c*hh<CR><LF>
| | | | | |
| | | | | +--------- 4
| | | | +------------ 3
| | +-----+---------------- 2
+-----+---------------------------- 1
1. Waypoint latitude, N/S
2. Waypoint longitude, E/W
3. Waypoint identifier
4. Checksum