Output Formats - Valeport va500 Operating Manual

© Valeport Limited
4

OUTPUT FORMATS

If the optional pressure sensor is fitted and enabled then the only data format that supports
this is the Valeport NMEA format. A number of other formats have been implemented to
provide compatibility with existing systems.
4.1 VALEPORT NMEA
$PRVAT, xx.xxx,M, xxxx.xxx, dBar*hh<CR><LF>
Field Number:
1 Range from transducer
2 Units
3 Pressure
4 Units
5 Checksum
Example:
$PRVAT,00.115,M,0010.073,dBar*39
$PRVAT,00.116,M,0010.056,dBar*3d
$PRVAT,00.116,M,0010.069,dBar*31
$PRVAT,00.116,M,0010.080,dBar*36
$PRVAT,00.116,M,0010.098,dBar*3f
$PRVAT,00.114,M,0010.083,dBar*37
$PRVAT,00.115,M,0010.086,dBar*33
4.2 $SDDBT
NB: this format limits the resolution of the altimeter to 0.1m
Sounder, Depth: Depth below transducer
$SDDBT,x.x,f,x.x,M,x.x,F*hh<CR><LF>
Field Number:
1. Depth, feet
2. f = feet
3. Depth, meters
4. M = meters
5. Depth, Fathoms
6. F = Fathoms
7. Checksum
Example:
$SDDBT,0.4,f,0.1,M,0.1,F*02
$SDDBT,0.4,f,0.1,M,0.1,F*02
$SDDBT,0.4,f,0.1,M,0.1,F*02
$SDDBT,0.4,f,0.1,M,0.1,F*02
$SDDBT,0.4,f,0.1,M,0.1,F*02
$SDDBT,0.4,f,0.1,M,0.1,F*02
$SDDBT,0.4,f,0.1,M,0.1,F*02
VA500 Altimeter Manual Page 14 0430831e_VA500_Altimeter_Manual