Spectra-precision ProMark 800 Reference Manual Manual de usuario Pagina 320

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Query Command Library
GPS: GPS Tracking Status
Function This command queries the receiver for the current GPS
tracking status.
Command Format Syntax
$PASHQ,GPS[*cc]
Response Format Syntax
$PASHR,GPS,s1[,s2[,s3[,s4]]]*ccc
Parameters
Example $PASHQ,GPS
$PASHR,GPS,ON,1C,2W*1D
Relevant Set
Command
$PASHS,GPS
Parameter Description Range
s1
GPS tracking status:
ON: GPS satellites currently tracked and used
OFF: GPS satellites not currently tracked
ON, OFF
s2
First Signal:
1C: Tracking GPS L1 C/A signal
1C
s3
Second Signal:
2L: Tracking L2CS signal for all GPS SVs
2W: Tracking L2P signal for all GPS SVs
2LW: Tracking L2CS signal for L2CS-capable
GPS SVs and L2P for others
5Q: Tracking L5 signal for all GPS SVs
“Blank”: No second signal to be tracked
2L, 2W,
2LW, 5Q or
“blank”
s4
Third Signal:
2L: Tracking L2CS signal for all GPS SVs
5Q: Tracking L5 signal for all GPS SVs
“Blank”: No third signal to be tracked
2L, 5Q or
“blank”
*cc Optional checksum *00-*FF
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