Nmea Dbt Datagram - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual
5 : Depth in fathoms
z.z,F
6 : Checksum
*hh
Tip
If you need the depth below the keel, use the NMEA DBK datagram. If you need the
depth below the transducer, use the NMEA DBT datagram.
Related topics
NMEA datagram formats, page 491
Sensor Installation page, page 363
Sensor Configuration page, page 369
Relay Output page, page 395
Interface specifications, page 473

NMEA DBT datagram

The NMEA DBT datagram provides the current depth under the transducer. In new
designs, this datagram is frequently used to replace the DBK and DBS datagrams.
Format
$--DBT,x.x,f,y.y,M,z.z,F*hh<CR><LF>
Description
All depths are measured from below the transducer face.
1 : Talker identifier
$—
2 : Datagram identifier
DBT
3 : Depth in feet
x.x,f
4 : Depth in metres
y.y,M
5 : Depth in fathoms
z.z,F
6 : Checksum
*hh
Tip
If you need the depth below the keel, use the NMEA DBK datagram. If you need the
depth below the surface, use the NMEA DBS datagram.
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