Altina GPS 9540 User Manual
Table 5-2 GGA Data Format-continue
Name
Example Units
Description
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 5-3 Position Fix Indicator
Value Description
0
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
5.3. Geographic Position with Latitude/Longitude(GLL)
Table 5-3 contains the values for the following example.
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C
Table 5-4 GLL Data Format
9
Name Example
Units
Description
Message ID
$GPGLL
GLL protocol header
Latitude
3723.2475
ddmm.mmmm
N/S Indicator
N
N/S Indicator N N=north or S=south
Longitude 12158.3416
dddmm.mmmm
E/W Indicator
W
E=east or W=west
UTC Position
161229.487
hhmmss.sss
Status
A
A=data valid or V=data not valid
Checksum *2C
<CR> <LF>
End of message termination