Furuno DS-30 Operator's Manual page 74

Doppler sonar
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Data sentences (output)
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>
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| | +-------------- 7
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| +----------------- 6
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+-------------------- 5
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| | +------------------------ 4
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| +--------------------------- 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>
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| | +--------- 4
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| +--+----------- 3
| | +--+----------------- 2
+--+----------------------- 1
1. Direction, degrees true
2. Direction, degrees magnetic
3. Current speed, knots
4. Checksum
VHW - Water speed and heading
$--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh<CR><LF>
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| +--+----------- 4
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| +--+----------------- 3
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+--+----------------------- 2
+--+----------------------------- 1
1. Heading, degrees true
2. Heading, degrees magnetic
3. Speed, knots
4. Speed, km/h
5. Checksum
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| +--- 11
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| +----- 10
| | +-------- 9
| +----------- 8
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| | +--------- 5
15-6

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