13
RSA-1200L User Manual
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 2-3 Position Fix Indicators
Value
Description
0
Fix not available or invalid
1
GPS SPS Mode, fix valid
2
Differential GPS, SPS Mode, fix valid
3-5
Not Supported GPS PPS Mode, fix valid
6
Dead Reckoning Mode, fix valid
2.1.2 GLL-Geographic Position
–
Latitude/Longitude
Table 2-4 contains the values of the following
Example: $GPGLL, 3723.2475, N, 12158.3416, W, 161229.487, A*2C
Table 2-4 GLL Data Format
Name
Example
Units
Description
Message ID
$GPGLL
GLL protocol header
Latitude
3723.2475
ddmm.mmmm
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.ss
Status
A
A=data valid or V=data not valid
Mode
A
A=Autonomous, D=DGPS, E=DR
Checksum
*2C
＜
CR
＞＜
LF
＞
End of message termination
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