Furuno SC-50 Operator's Manual page 72

APPENDIX
VBW - Dual ground/water speed
$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh<CR><LF>
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | +----------- 8
| | | | | | +-------------- 7
| | | | | +----------------- 6
| | | | +-------------------- 5
| | | +------------------------ 4
| | +--------------------------- 3
| +------------------------------ 2
+---------------------------------- 1
1. Longitudial water speed, knots
2. Transverse water speed, knots
3. Status: water speed, A=data valid V=data invalid
4. Longitudial ground speed, knots
5. Transverse ground speed, knots
6. Status: ground speed, A=data valid V=data invalid
7. Stern transverse water speed, knots
8. Status: stern water speed, A=data valid V=data invalid
9. Stern transverse ground speed, knots
10. Status: stern ground speed, A=data valid V=data invalid
11. Checksum
VDR - Set and drift
$--VDR,x.x,T,x.x,M,x.x,N*hh<CR><LF>
| | | | | | |
| | | | | | +--------- 4
| | | | +--+----------- 3
| | +--+----------------- 2
+--+----------------------- 1
1. Direction, degrees true
2. Direction, degrees magnetic
3. Current speed, knots
4. Checksum
VHW - Water speed and heading
The compass heading to which the vessel points and the speed of the vessel relative to the water.
$--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh<CR><LF>
| | | |
| | | |
| | | |
| | | | +--+----------------- 3
| | +---+----------------------- 2
+---+----------------------------- 1
1. Heading, degrees true
2. Heading, degrees magnetic
3. Speed, knots
4. Speed, km/h
5. Checksum
AP-6
| | |
| | +--- 11
| +----- 10
+-------- 9
| | | | |
| | | | +--------- 5
| | +--+----------- 4