Novatel OEM7 - Chapter 7 Troubleshooting

OEM7 Installation and Operation User Manual v1 93
Chapter 7 Troubleshooting
There are simple ways to diagnose and resolve problems. In many cases, the issue can be
resolved within a few minutes, avoiding the inconvenience and loss of productivity that results
from having to return the receiver for repair. This section discusses troubleshooting issues and
includes cross-references to other sections of the manual that may help resolve problems.
If unsure of the symptoms or if the symptoms do not match any of those listed, use the
RXSTATUS log to check the receiver status and error words. See Examining the RXSTATUS Log
on the next page.
Try to resolve the problem using the troubleshooting guide in Table 9: Troubleshooting Based on
Symptoms below, then try our Knowledge Base at www.novatel.com/support/. If you are still
not able to resolve the problem, contact Customer Support on page12.
Symptom Related Section
The receiver is not properly
powered
Check and replace a faulty power cable
See Power Supply Requirements for Receiver Cards on
page20 for the OEM7 cards
The receiver cannot establish
communication
Check and replace faulty serial cables and ports.
See CAN Bus on page86 and Status LED on page75. Refer
also to the SERIALCONFIG command in the OEM7
Commands and Logs Reference Manual (OM-20000169)
The receiver is not tracking
satellites
Ensure that the antenna has an unobstructed view of the sky
from horizon to horizon.
Check the RXSTATUS error states. See Examining the
RXSTATUS Log on the next page. If the receiver is in error
mode, it does not track.
Check for and replace a faulty antenna cable. See Selecting a
GNSS Antenna on page19, Choosing a Coaxial Cable on
page20 and Connecting the Antenna to the Receiver Card on
page32.
No data is being logged
See CAN Bus on page86 and Communications with the
Receiver on page41
Random data is being output by
the receiver or binary data is
streaming
Check the baud rate on the receiver and in the communication
software. Refer to the SERIALCONFIG command and
FRESET command in the OEM7 Commands and Logs
Reference Manual (OM-20000169). See also CAN Bus on
page86
Table 9: Troubleshooting Based on Symptoms