Chapter 10 Troubleshooting
CPT7 and CPT7700 Installation and Operation User Manual v12
138
Bit Set
Action to Resolve
19-21
Reduce the amount of logging on the Ethernet ports
22-24
Reduce the amount of logging on the NTRIP ports
25-27
Reduce the amount of logging on the Virtual COM ports
28-29
AGC error on RF5 (bit 28) or RF6 (bit 29). To resolve, ensure the antenna cable is connected and
signal input level is within specification. Contact NovAtel
on page 16.for additional
information.
30-31
(Reserved bits)
10.3 High Temperature Environments
The operating temperature of OEM7 receivers increases as more features (channels used, HDR mode, etc.)
are enabled.
When the receiver is operating in an environment that is near its maximum ambient temperature, an increase
in the ambient air temperature or enabling additional features may cause the receiver to exceed its maximum
operating temperature and generate a Temperature Status error. When a Temperature Status error occurs,
the receiver idles all channels, turns off the antenna and disables the RF hardware. The communication
interfaces continue to function so commands can be sent and logs received.
10.3.1 Indicators of an Error State
The indications that the receiver is in an error state, such as a Temperature Status error, are:
l
Logs that have a solution status will show INSUFFICIENT_OBS as the Solution Status.
l
The
RXSTATUSEVENT
log is output on all communication ports. This log will indicate an error condition in
the Receiver Error word of the log.
l
All logs output have Bit 0 set in the Receiver Status word of the log header.
To determine the cause of the error, log the
RXSTATUS
log and check the Receiver Error word. If Bit 9 is set,
it is a Temperature Status error. For information about reading the Error Word, refer to
10.3.2 Recovering from a Temperature Status Error
The receiver must be reset or power cycled to recover from a receiver error such as a Temperature Status
error.
Log information is lost when the receiver is reset. Therefore, any logs required to identify and troubleshoot the
error, such as the
RXSTATUS
log, should be collected before resetting the receiver.
Also, steps should be taken to reduce the cause of the receiver temperature error to prevent the error from
occurring again. See
Mitigating High Receiver Temperature
10.3.3 Mitigating High Receiver Temperature
If the receiver has a high temperature warning or error, use one or more of the following suggestions to reduce
the receiver temperature.
l
If possible, reduce the ambient temperature around the receiver or move the receiver to an area with a
lower ambient temperature.
l
Disable the receiver features that are not required for the current operation of the receiver.
