Furuno VR-7000S Installation Manual page 107

GNS - GNSS fix data
$--GNS,hhmmss.ss,llll.lll,a,IIIII.III,a,c--c,xx,x.x,x.x,x.x,x.x,x.x,a*hh<CR><LF>
1 2
1. UTC of position (no use)
2. Latitude (0.00000 to 9000.00000)
3. N/S
4. Longitude (0.00000 to 18000.00000)
5. E/W
6. Mode indicator
N=No fix A=Autonomous D=Differential P=Precise R=Real Time Kinematic
F=Float RTK E=Estimated Mode M=Manual Input Mode S=Simulator Mode
7. Total number of satellites in use (00 to 99)
8. HDOP (0.0 to 999.99)
9. Antenna altitude, meters (-999.99 to 9999.99)
10. Geoidal separation (-999.99 to 9999.99)
11. Age of differential data (0 to 999)
12. Differential reference station ID (0000 to 1023)
13. Naivgational status indicator
HBT - Heartbeat supervision sentence
$--HBT,x.x,A,x*hh<CR><LF>
1 2 3
1. Configured repeat interval (00.0 to 99.9(s))
2. Equipment status, A=Normal (fixed)
3. Sequential sequence identifier (0 to 9)
HDG - Heading Magnetic
$--HDG,x.x,x.x,a,x.x,a*hh<CR><LF>
1 2 3 4 5
1. Magnetic sensor heading, degrees (0.00 to 360.00)
2. Magnetic deviation, degrees (0.0 to 180.00)
3. E/W
4. Magnetic variation, degrees (0.0 to 180.00)
5. E/W
HDT - Heading, true
$--HDT, xxx.x,T*hh<CR><LF>
1 2
1. Heading, degrees (0.00 to 360.00)
2. True (T)
3 4 5 6 7 8 9 10 11 12 13
APPENDIX 4 DIGITAL INTERFACE
AP-19