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Provides a position data stream in NMEA 0183 GPGGA GPS Fix data format. The Format 90 data structure is shown below:
$GPGGA,HHMMSS.SS,ddmm.mmmm,n,dddmm.mmmm,c,Q,SS,YY.y,+AAAAA.a,M,,,,*CC CR LF
| CHARACTER DESCRIPTOR: |
| $GP |
GPS System Talker |
| GGA |
GPS Fix Data Message |
| HHMMSS.SS |
Latest time of Position Fix, UTC. This field is blank until a 3D fix is acquired |
| ddmm.mmmm,n |
Latitude |
| dd |
degress, 00...90 |
| mm.mmmm |
minutes, 00.0000....59.9999 |
| n |
direction, N = North, S = South |
| ddmm.mmmm,e |
Longitude |
| ddd |
degress, 000...180 |
| mm.mmmm |
minutes, 00.0000....59.9999 |
| e |
direction, E = East, W = West |
| Q |
Quality Indicator (0 = No 3D fix, 1 = 3D fix) |
| SS |
Number of satellites tracked, 0...8 |
| YY.y |
Dilution of precision, 00.0...99.9 |
| +AAAAA.a,M |
Antenna height in meters, referenced to mean sea level |
| ,,,, |
Fields for geoidal separation and differential GPS not supported |
| CC |
Check sum message, HEX 00...7F Check sum calculated by Xoring all bytes between $ and *. |
| CR |
Carriage Return |
| LF |
Line Feed |
Example:
$GPGAA,151119.00,4307.0241,N,07729.2249,W
W,1,06,03.2,+,1,06,03.2,+00125.5,M,,,,*3F
| Time of Position Fix |
15:11:19.00 UTC |
| Latitude |
43° 07.0241' North |
| Longitude |
77° 29.2249' West |
| Quality |
3D fix |
| Satellites Used |
6 |
| Dilution of Precision |
3.2 |
| Antenna Height |
+125.5 meters above sea level |
| Check Sum |
3F |
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