Furuno DS-80 - Manual (Page 29)

21
VTG - Course over ground and ground speed
The actual course and speed relative to the ground.
$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh
| | | | | | | | | |
| | | | | | | | | +------- 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
S = Simulator
N = Data not valid
The positioning system Mode indicator field shall not be a null field.
Note: Speed, course degrees magnetic and course degrees true not used.