Users Manual Part 7

APPENDIX 2 DIGITAL INTERFACE
AP-4
BWR - Bearing and distance to waypoint – Rhumb line
CUR - Water current layer – Multi-layer water current data
DBK - Depth below keel
DBS - Depth below surface
$ **BWR,hhmmss.ss,llll.ll,a,yyyyy.yy,a.x.x,T,x.x,M,x.x,N,c--c,a,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
1. UTC of observation (No use)
2. Waypoint latitude (0000.0000 to 9000.0000)
3. N/S
4. Waypoint longitude (00000.0000 to 18000.0000)
5. E/W
6. Bearing, degrees true (No use)
7. Unit, True (No use)
8. Bearing, degrees magnetic (No use)
9. Unit, Magnetic (No use)
10. Distance, nautical miles (No use)
11. Unit, N (No use)
12. Waypoint ID (Max. 15 characters)
13. Mode Indicator (A=Autonomous, D=Differential, null*)
*: For IMO-type or R-type radar, null is invalid.
$**CUR,A,x,x.x,x.x,x.x,a,x.x,x.x,x.x,a,a,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 1011
1. Validity of data (A=Valid)
2. Data set number (No use)
3. Layer number (1 to 5)
4. Current depth in meters (No use)
5. Current direction in degrees (0.0 to 359.9)
6. Direction reference in use (true or relative)
7. Current speed in knots (0.0 to 99.9)
8. Reference layer depth in meters (No use)
9. Heading (No use)
10. Heading reference in use (No use)
11. Speed reference (No use)
$**DBK,x.x,f,x.x,M,x.x,F,*hh<CR><LF>
1 2 3 4 5 6
1. Water depth (0.00 to 99999.99)
2. feet
3. Water depth (0.00 to 99999.99)
4. Meters
5. Water depth (0.00 to 99999.99)
6. Fathom
$**DBS,x.x,f,x.x,M,x.x,F,*hh<CR><LF>
1 2 3 4 5 6
1. Water depth (0.00 to 99999.99)
2. feet
3. Water depth (0.00 to 99999.99)
4. Meters
5. Water depth (0.00 to 99999.99)
6. Fathom