NaviSys Technology - Your Location Partner
User’s Manual - GR-312
18
3.2 GPGGA - Global Positioning System Fix Data
Example
$GPGGA,101229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*3E
Explanation
Contents
Example
Unit
Explanation
Message ID
$GPGGA
GGA protocol header
UTC Time
101229.487
hhmmss.sss
hh: hour, mm: minute, ss: second
Latitude
3723.2475
ddmm.mmmm
dd: degree, mm.mmmm: minute
North/South
N
N: North Latitude, S: South Latitude
Longitude
12158.3416
dddmm.mmmm
dd: degree, mm.mmmm: minute
East/West
W
E: East Longitude, W: West Longitude
Position Fix Indicator 1
0: Fix not available or invalid,
1: GPS SPS Mode, fix valid,
2: Differential GPS, SPS Mode, fix valid,
3~5: Not supported,
6: Dead Reckoning Mode, fix valid
Satellites Used
07
Number of satellites used in positioning
calculation (0 to 12)
HDOP
1.0
Horizontal Dilution of Precision
MSL Altitude
9.0
meters
Unit
M
Meters
Geoidal separation
meters
Units
M
Meters
Age of Diff. Corr.
second
Null fields when DGPS is not used
Diff. Ref. Station ID
0000
checksum
*3E
<CR><LF>
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3.3 GPGLL - Geographic Position - Latitude / Longitude
Example
$ GPGLL,2446.8619,N,12100.2579,E,060725.000,A,A*7E
Explanation
Contents
Example
Unit
Explanation
Message ID
$GPGLL
GLL protocol header
Latitude
2446.8619
ddmm.mmmm
dd: degree, mm.mmmm: minute
North/South
N
N: North Latitude, S: South Latitude
Longitude
12100.2579
dddmm.mmmm
dd: degree, mm.mmmm: minute
East/West
E
E: East Longitude, W: West Longitude
UTC Time
060725.000
hhmmss.sss
hh: hour, mm: minute, ss: second
Status
A
A: Data valid, V: Data invalid
Mode Indicator
A
A: Autonomous, D: DGPS, E: DR
checksum
*7E
<CR><LF>
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