Technical data

Troubleshooting 43
Troubleshooting
2. Is the GPS antenna connected to the receiver?
Look on the back panel of the receiver for a cable connecting the receiver to the
antenna.
Antenna Is Not Connected
Connect the GPS antenna to the receiver.
On the back panel of the Z-Xtreme, connect the antenna cable to the port
labeled ‘GPS’. Ensure the connection is snug and not cross-threaded.
At the antenna, connect the antenna cable to the antenna. Ensure the
connection is snug and not cross-threaded.
Once connected, give the GPS receiver a few seconds to lock onto satellites.
Antenna Is Connected
Ensure proper connection
The GPS antenna must be connected to the port on the back of the receiver
labeled ‘GPS’. Ensure this is the case.
Ensure the connection at the receiver and the antenna is tight and not cross-
threaded.
Go to step 3) if the problem is not yet resolved.
3. A component may be malfunctioning.
You may have a malfunctioning antenna or antenna cable. Follow these steps to
help isolate which component is causing the problem.
a. Replace the cable with the one from the rover system. If the receiver
locks onto satellites, there is a problem with the base antenna cable.
Contact your local dealer or Ashtech customer support for assistance.
b. If the cable swap does not help, replace the antenna with the one from the
rover system. If the receiver locks onto satellites, there is a problem with
base antenna. Contact your local dealer or Ashtech customer support for
assistance.
4. You may have a malfunctioning GPS receiver.
Call your local dealer or Ashtech customer support for assistance.
GPS Receiver Is Not Recording Data
A data logging LED on the front panel of the Z-Xtreme receiver indicates that data
is being logged to memory by flashing once every time a data sample is logged.
Examining this LED, you determine that the receiver is not logging data to memory.
Follow the procedure below to determine the cause of this problem.
630045.book Page 43 Sunday, February 11, 2001 11:38 AM