User Manual

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6
Precision
MSL Altitude
9.0
meters
Units
M
meters
Geoid Separation
meters
Units
M
meters
Age of Diff. Corr.
second
Null fields when DGPS is
not used
Diff. Ref. Station ID
0000
Checksum
*18
＜CR＞＜LF＞
End of message termination
Table 2-1 Position Fix Indicator
Value
Description
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
3.1.2 GLL-Geographic Position-Latitude/Longitude
Table 3 contains the values of the following Example:
$GPGLL, 3723.24756, N, 12158.34162, W, 161229.487, A*2C
Table 3 GLL Data Format
Name
Example
Units
Description
Message ID
$GPGGA
GLL protocol header
Latitude
3723.24756
ddmm.mmmm
N/S Indicator
N
N=north or S=south
Longitude
12158.34162
Dddmm.mmmm
E/W Indicator
W
N=north or S=south
UTC Position
161229.487
Hhmmss.ss
Status
A
A=data valid or V=data not
valid