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APPENDIX 4 DIGITAL INTERFACE
AP-10
GNS-GNSS fix data
HDT-Heading true
OSD-Own ship data
$--GNS,hhmmss.ss,llll.ll,a,yyyyy.yy,a,c--c,xx,x.x,x.x,x.x,x.x,x.x*hh<CR><LF>
| | | | | | | | | | | | |
| | | | | | | | | | | | +--- 11
| | | | | | | | | | | +------ 10
| | | | | | | | | | +---------- 9
| | | | | | | | | +-------------- 8
| | | | | | | | +------------------ 7
| | | | | | | +---------------------- 6
| | | | | | +------------------------- 5
| | | | | +------------------------------ 4
| | | +-------+--------------------------------- 3
| +--+--------------------------------------------- 2
+------------------------------------------------------------- 1
1. Not used
2. Latitude, N/S
3. Longitude, E/W
4. Mode indicator
5. Not used
6. Not used
7. Not used
8. Not used
9. Not used
10. Not used
11. Checksum
$--HDT,x.x,T*hh<CR><LF>
| | |
| | +--------- 2
+----+----------- 1
1. Heading, degrees true
2. Checksum
$--OSD,x.x,A,x.x,a,x.x,a,x.x,x.x,a*hh<CR><LF>
| | | | | | | | | |
| | | | | | | | | +--------- 10
| | | | | | | | +----------- 9
| | | | | | | +-------------- 8
| | | | | | +------------------ 7
| | | | | +--------------------- 6
| | | | +------------------------ 5
| | | +--------------------------- 4
| | +------------------------------ 3
| +--------------------------------- 2
+------------------------------------ 1
1. Heading, degrees true
2. Heading status: A=data valid, V=data invalid
3. Vessel course, degrees true
4. Course reference, B/M/W/R/P(see note)
5. Vessel speed
6. Speed reference, B/M/W/R/P(see note)
7. Not used
8. Not used
9. Speed units, K(km/h) / N(Knots) / S(statute miles/h)
10. Checksum
NOTES - Reference systems(speed/course):
B = bottom tracking log
M = manually entered
W = water referenced
R = radar tracking(of fixed target)
P = positioning system ground reference