9-9 Chapter 9 Specification
9
Output data format
■ VBW – Dual ground/water speed
Version 1.5
Do not output VBW sentence
Version 2.1
$GPVBW, x.x,x.x,A,x.x,x.x,A *hh<CR><LF>
1 2 3 4 5 6 11
Version 2.3 4.0、IEC61162-1
$GPVBW, x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11
1 : Longitudinal water speed, knots “-“ = astern
2 : Transverse water speed, knots “-“ = port
3 : Status: water speed, A = data valid, V = data invalid
4 : Longitudinal ground speed, knots “-“ = astern
5 : Transverse ground speed, knots “-“ = port
6 : Status: ground speed, A = data valid, V = data invalid
7 : Stern transverse water speed, knots “-“ = port
8 : Status: stern water speed, A = data valid, V = data invalid
9 : Stern transverse ground speed, “-“ = port
10 : Status: stern ground speed, A = data valid, V = data invalid
11 : Checksum
■ VLW – Dual ground/water distance
Version 1.5
$GPVLW, xxxx.x,N,xxx.xx,N<CR><LF>
1 2
Version 2.1
$GPVLW, x.x,N,x.x,N *hh<CR><LF >
1 2 3
1 : Total cumulative distance, nautical miles
2 : Distance since reset, nautical miles
3 : Checksum
Version 2.3 4.0、IEC61162-1
$GPVLW, x.x,N,x.x,N,x.x,N,x.x,N*hh<CR><LF>
1 2 3 4 5
1 : Total cumulative water distance, nautical miles
2 : Water distance since reset, nautical miles
3 : Total cumulative ground distance, nautical miles
4 : Ground distance since reset, nautical miles
5 : Checksum
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