111
Commands
$PASHS,USP,4,N
UTS: Synchronize with GPS Time
$PASHS,UTS,s
This command enables (s=ON) or disables (s=OFF) a mechanism that
synchronizes measurements and coordinates with GPS system time rather than
with local (receiver) clock. The calculated pseudo-ranges do not depend upon the
receiver clock stability. This mode simulates a configuration where the receiver has
a quartz oscillator with very high stability and is synchronized with GPS. Default is
OFF.
If processing raw data from the receiver with your own processing algorithms, enable UTS.
$PASHQ,UTS,x
The associated query command is $PASHQ,UTS,x, where x is the port where the
reply will be sent. Note that x is not required to direct the response message to the
current communication port.
The receiver response message is in the format:
$PASHR,UTS,x*cc
where x is ON or OFF and *cc is the checksum.
VDP: VDOP Mask
$PASHS,VDP,d1
This command allows you to set the value of the VDOP mask, where d1 is a number
between 0 and 99. If the VDOP value computed by the G12 is higher than the VDOP
mask value, the receiver will automatically go into fixed altitude mode. You can view
the current VDOP mask value by entering the query command $PASHQ,PAR and
checking the VDP field.
DEFAULT SETTING
USP—All satellites included for position computation
DEFAULT SETTING
UTS—OFF
G12RevD.book Page 111 Tuesday, April 2, 2002 4:33 PM
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