RoyalTek REB-4315 Operational Manual page 14

Diff. Ref. Station ID
Checksum
＜CR＞＜LF＞
Value
0
1
2
3-5
6
GSA-GNSS DOP and Active Satellites
Table 4 contains the values of the following example:
$GPGSA, A, 3, 07, 02, 26, 27, 09, 04, 15, , , , , , 1.8,1.0,1.5*33
Name
Message ID
Mode 1
Mode 2
ID of Satellite
Used
ID of Satellite
Used
....
ID of Satellite
Used
PDOP
HDOP
VDOP
Checksum
＜CR＞＜LF＞
Value
M Manual-forced to operate in 2D or 3D mode
A Automatic-allowed to automatically switch 2D/3D
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REB-4315 Operational Manual
0000
*18
Position Fix Indicators
Table 3
Description
Fix not available or invalid
GPS SPS Mode, fix valid
Differential GPS, SPS Mode, fix valid
Not Supported
Dead Reckoning Mode, fix valid
Table 4 GSA Data Format
Example Units
$GPGSA GSA protocol header
A See Table 5
3 See Table 6
07 Sv on Channel 1
02 Sv on Channel 2
....
Sv on Channel 12
1.8 Position Dilution of Precision
1.0 Horizontal Dilution of Precision
1.5 Vertical Dilution of Precision
*33
End of message termination
Table 5 Mode 1
Description
13
End of message termination
Description