Technical data

44 Post-Process GPS Surveying
1. Is the GPS receiver tracking satellites?
The GPS receiver must first be tracking satellites before it can log data to memory.
Check the data logging LED on the front panel of the Z-Xtreme receiver to determine
if the receiver is tracking satellites.
Receiver is not tracking satellites
Refer to the above troubleshooting item on satellite tracking to try and
determine the problem.
Receiver is tracking satellites
Go to step 2 below.
2. Is the data card installed in the GPS receiver?
The Z-Xtreme receiver logs data to a removable data card. The data card must be
installed in the GPS receiver in order for the receiver to log data. Check to ensure
that the data card is installed. If the Z-Xtreme is powered on without a data card,
a warning message should appear across the receiver display.
Data Card Not Installed
Insert the data card into the receiver.
Data Card Is Installed
Go to step 3 below.
3. Is the data card full?
The data logging LED on the front panel of the Z-Xtreme receiver will be solid red
if the data card in the receiver is full. Check the LED to determine if the card is full.
Card Is Full
Delete some of the data files on the data card that have been downloaded.
This can be accomplished with either the interface on the receiver or using
the field application software running on the handheld computer.
Card Is Not Full
Go to step 4 below.
4. A component may be malfunctioning.
You may have a malfunctioning data card. Try the data card in another GPS
receiver. If this new receiver will not log data, the data card is malfunctioning.
Replace the card.
You may have a malfunctioning GPS receiver. Call your local dealer or Ashtech
customer support for assistance.
630045.book Page 44 Sunday, February 11, 2001 11:38 AM