RDR-3100 User Manual
8.1.3 GSA-GNSS DOP and Active Satellites
Table 1-5 contains the values of the following example:
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33
Table 1-1 GSA Data Format
Name Example
Units
Description
Message ID
$GPGSA
GSA protocol header
Mode 1
A
See Table 1-6
Mode 2
3
See Table 1-7
Satellite Used
07
Sv on Channel 1
Satellite Used
02
Sv on Channel 2
….
….
Satellite Used
Sv on Channel 12
PDOP
1.8
Position Dilution of Precision
HDOP 1.0
Horizontal
Dilution of Precision
VDOP
1.5
Vertical Dilution of Precision
Checksum *33
＜
CR
＞＜
LF
＞
End of message termination
Table 1-2 Mode 1
Value Description
1
Fix not available
2 2D
3 3D
Table 1-3 Mode 2
Value Description
M
Manual-forced to operate in 2D or 3D mode
A
Automatic-allowed to automatically switch 2D/3D
18
