Lantronix G520 G520 User Guide - Page 100
GPGGA Format, Age of Diff.Corr.
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10: Services GPGGA Format The $GPGGA message includes time, position, GPS quality and number of satellites in use. Example: $GPGGA,120133.0,1907.469671,N,07250.544473,E,1,05,1.0,43.1,M,-64.0,M,,*42 Parameters MID GGA Parameters MID UTC Time Latitude N/S-Indicator Longitude E/W-Indicator Position-Fix-Indicator Satellite-Used HDOP MSL Altitude Units Geoid Seperation Units Age of Diff.Corr. Diff. Ref.Station ID Checksum Table 10-10 GGA Data Format Description GGA Protocol Header Example - $GPGGA Time in hhmms.sss Example - 120133.0 Latitude in ddmm.mmmm Example - 1907.469671 N = North or S = South Example - N Longitude in ddmm.mmmm Example - 07250.544473 E = East or W = West Example - E Indicates 0 - Fix not available or invalid 1 - GPS SPS Mode, fix valid 2 - Differential GPS, SPS Mode, fix valid 3 to 5 - Not supported 6 - Dead Reckoning Mode, fix valid Example - 1 Number of satellite used to receive GPS signals. The range for the number of satellite used is 0 to 12. Example - 05 Horizontal Dilution of Precision Example - 1.0 Altitude in meters. Example - 43.1 meters Example - M meters Geoid-to-ellipsoid separation. Ellipsoid altitude = MSL Altitude + Geoid Separation Example: -64.0 meters Example: M meters Null fields when DGPS is not used.4 The units is sec. - *42 End of message termination G520 Series IoT Cellular Gateway User Guide 100