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$GPGSA
This message transfers DOP and active satellites information. Following is an example.
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33
The $GPGSA message structure is shown below:
Field
Message ID
Mode A
Mode 3
(1)
Satellites Used
(1)
Satellites Used
...
(1)
Satellites Used
PDOP
HDOP
VDOP
Checksum
<CR> <LF>
(1)
Satellites used in solution.
Example
Unit
$GPGSA
07
02
1.8
1.0
1.5
*33
Notes
GSA protocol header.
M: Manual, forced to operate in selected 2D
or 3D mode.
A: Automatic switching between modes.
1
Fix not available.
2
2D position fix.
3
3D position fix.
SV on channel 1.
SV on channel 2.
..
SV on channel 12.
Message terminator.
16
T-368 User's Guide v1.0
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