Icom GM600 - GLL-Geographic Position - Latitude;Longitude; VTG-Course over Ground and Ground Speed

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DIGITAL INTERFACE (IEC61162-1)
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• GNS—GNSS fix data
$**GNS, hhmmss.ss, llll.ll, a, yyyyy.yy, a, c--c, xx, x.x, x.x, x.x, x.x, x.x, a*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
1 UTC of position (000000.00 to 235959.99) 8 HDOP (no use)
2 Latitude (0000.0000 to 9000.0000) 9 Antenna altitude, meters (no use)
3 N/S 10 Geoidal separation (no use)
4 Longitude (00000.0000 to 18000.0000) 11 Age of differential data (no use)
5 E/W 12 Differential reference station ID (no use)
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Mode indicator (N=No x, A=Autonomous, D=Differential, P=Precise,
R=Real Time Kinematic, F=Float RTK, S=Simulator mode)
13 Navigational status indicator (no use)
7 Total number of satellites in use (no use)
• GLL—Geographic position – Latitude/longitude
$**GLL, llll.ll, a, yyyyy.yy, a, hhmmss.ss, a, x*hh<CR><LF>
1 2 3 4 5 6 7
1 Latitude (0000.0000 to 9000.0000) 5 UTC of position (000000.00 to 235959.99)
2 N/S 6 Status (A=data valid V=data invalid)
3 Longitude (00000.0000 to 18000.0000) 7
Mode indicator (A=Autonomous, D=Differential, N=No x,
S=Simulator mode)
4 E/W
• VTG—Course over ground and ground speed
$**VTG, x.x, T, x.x, M, x.x, N, x.x, K, a*hh<CR><LF>
1 2 3 4 5 6 7 8 9
1 Course over ground, degrees true (0.0 to 360.0) 6 Unit N
2 Unit T 7
Speed over ground, km/h (no use)
3 Course over ground, degrees magnetic (no use) 8 Unit K
4 Unit M 9
Mode indicator (A=Autonomous, D=Differential, E=Estimated,
M=Manual input, P=Precise, S=Simulator, N=Data not valid)
5 Speed over ground, knots (0.0 to 100.0)