Furuno GP-170 - DPT-Depth; DTM-Datum Reference; GBS-GNSS Satellite Fault Detection; GGA-Global Positioning System (GPS) Fix Data

APPENDIX 1 DIGITAL INTERFACE (IEC 61162-1 EDITION 4 (2010-11))
AP-10
DPT-Depth
DTM-Datum reference
GBS-GNSS satellite fault detection
GGA-Global positioning system (GPS) fix data
$**DPT,x.x,x.x,x.x,*hh<CR><LF>
1 2 3
1. Water depth relative to the transducer, meters
2. Offset from transducer, meters
3. Minimum range scale in use (no use)
$
**DTM,ccc,a,x.x,a,x.x,a,x.x,ccc,*hh<CR><LF>
1 2 3 4 5 6 7 8
1. Local datum (W84=WGS84 W72=WGS72 S85=SGS85, P90=PE90
User defined=999, IHO datum code
2
. Local datum subdivision code (NULL or one character)
3
. Lat offset, min
4
. N/S
5
. Lon offset, min (no use)
6
. E/W
7
. Altitude offset, meters (no use)
8
. Reference datum (W84=WGS84 W72=WGS72 S85=SGS85, P90=PE90)
$**GBS, hhmmss.ss, x.x, x.x, x.x, xx, x.x, x.x, x.x,h,h*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10
1. UTC time of GGA or GNS fix associated with this sentence
2. Expected error in latitude
3. Expected error in longitude
4. Expected error in altitude (no use)
5. ID number of most likely failed satellite (no use)
6. Probability of missed detection for most likely failed satellite (no use)
7. Estimate of bias in meters on most likely failed satellite (no use)
8. Standard deviation of bias estimate (no use)
9. GNSS System ID
10. GNSS Signal ID
$**GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13 14
1. UTC of position (no use)
2. Latitude
3. N/S
4. Longitude
5. E/W
6. GPS quality indicator
7. Number of satllite in use
8. Horizontal dilution of precision
9. Antenna altitude above/below mean sealevel
10. Unit, m
11. Geoidal separation
12. Unit, m
13. Age of differential GPS data
14. Differential reference station ID