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E220 Series Cellular Router User Guide
202
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$GPGGA,120133.0,1907.469671,N,07250.544473,E,1,05,1.0,43.1,M,-64.0,M,,*42
Parameters
Description
MID GGA Parameters
MID
GGA Protocol Header
Example – $GPGGA
UTC Time
Time in hhmms.sss
Example – 120133.0
Latitude
Latitude in ddmm.mmmm
Example – 1907.469671
N/S-Indicator
N = North or S = South
Example – N
Longitude
Longitude in ddmm.mmmm
Example – 07250.544473
E/W-Indicator
E = East or W = West
Example – E
Position-Fix-Indicator
Indicates
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0 – Fix not available or invalid
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1 – GPS SPS Mode, fix valid
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2 – Differential GPS, SPS Mode, fix valid
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3 to 5 – Not supported
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6 – Dead Reckoning Mode, fix valid
Example – 1
Satellite-Used
Number of satellite used to receive GPS signals.
The range for the number of satellite used is 0 to 12.
Example – 05
HDOP
Horizontal Dilution of Precision
Example – 1.0
MSL Altitude
Altitude in meters.
Example – 43.1 meters
Units
Example – M meters
Geoid Seperation
Geoid-to-ellipsoid separation.
Ellipsoid altitude = MSL Al Geoid Separation
Example – -64.0 meters
Units
Example – M meters
Age of Diff.Corr.
Null fields when DGPS is not used.4
The units is sec.
Diff. Ref.Station ID
-
Checksum
*42
<CR><LF>
End of message termination
Table 11.8-3: GGA Data Format