GGA - Global positioning system (GPS) fix data
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1.UTC of position
2.Latitude, N/S
3.Longitude, E/W
4.GPS quality indicator (see note)
5.Number of satllite in
6.Horizontal dilution of precision
7.Antenna altitude above/below mean sealevel, m
8.Geoidal separation, m
9.Age of differential GPS data
10.Differential reference station ID,
11.Checksum
NOTE
0 = fix not available or invalid
1 = GPS SPS mode, fix valid
2 = differential GPS, SPS mode, fix valid
3 = GPS PPS mode, fix valid
4 = Real Time Kinetic. Satellite system used in RTK mode with fixed integers 5 = Float RTK. Satellite system used in RTK mode with floating fingers
6 = Estimated (dead reckoning) mode
7 = Manual input mode
8 = Simulator mode
The GPS quality indicator shall not be a null field.
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