BWR - Bearing and distance to waypoint - rhumb line
DBT - Depth below transducer
$--DBT,x.x,f,x.x,M,x.x,F*hh<CR><LF>
| | |
|
| | |
| | |
|
| | +--------- 4
| | |
| +--+----------- 3
| | +--+----------------- 2
+--+----------------------- 1
1. Water depth, feet
2. Water depth, m
3. Water depth, fathoms
4. Checksum
APPENDIX
AP-25
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