Furuno DS-80 Operator's Manual page 30

VBW - Dual ground/water speed
Water-referenced and ground-referenced speed data.
$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh<CR><LF>
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | +------------------------ 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
Notes
1. Longitudinal speed: "-" astern.
* Not used.
VLW - Distance travelled through the water
The distance travelled, relative to the water.
$--VLW,x.x,N,x.x,N*hh<CR><LF>
| | | | |
| | | | +--------- 3
| | +--+----------- 2
+--+----------------- 1
1. Total cumulative distance, nautical miles
2. Distance since reset, nautical miles
3. Checksum
| | | | | | |
| | | | | | +--- 11
| | | | | +----- 10
| | | | +-------- 9
| | | +----------- 8
| | +-------------- 7
| +----------------- 6
+-------------------- 5
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