Specifications

56 Z-Family Techncial Reference Manual
No CPD solution • Verify that there are at least four common satellites between
the base and the rover, using $PASHQ,CPD,INF command.
• Verify that base station coordinates have been received in the
rover side, using $PASHQ,CPD,POS command. If the
coordinates are not being received, make sure the base is
sending them periodically, using $PASHQ,CPD,DLK
command or $PASHQ,RTC command. Or you can enter the
base station coordinates in the rover side, using
$PASHS,CPD,POS command.
• For Z-Sensor, and Z-Eurocard, check that there are no
warnings ($PASHQ,WARN).
CPD solution is intermittent
and the Rover beeps
• Monitor the data link quality, using the $PASHQ,CPD,DLK
command. The QA number should be 90% or higher.
• Verify that fast CPD is turned on, using $PASHQ,CPD or
$PASHQ,CPD,MOD command.
• Verify the rover antenna has clear view to the sky and is
tracking satellites properly.
Cannot get fixed CPD
solution
• Verify using $PASHQ,CPD,INF command that at least 5
SVs are being tracked for P1 and P2.
• Verify that the number of satellites common between the
base and rover is 5 or more. Even if 5 or more satellites are
tracked, you still may not get a fixed solution at locations
with severe multipath.
• Move away from the obstruction if possible. Issue
$PASHS,CPD,RST command to reinitialize the CPD
operation.
CPD solutions are not being
stored in the Rover
• Verify that PC card is inserted.
• Verify that $PASHQ,CPD,OUT is selected to output CPD
solution.
• Verify that REC is set to Y in $PASHR,RAW message.
• Verify there is still memory available.Verify the record
interval.
Cannot get the CPD solution
output in real-time
• Make sure the communication BAUD rate is correct. In
RTCM operation, the receiver port is not being set to RTCM
base or REMOTE.
• Verify the output selection, using $PASHQ,RAW and
$PASHQ,PAR commands.
Table 4.1: Troubleshooting Tips (continued)
Symptom Action