Chapter 10 Troubleshooting
CPT7 and CPT7700 Installation and Operation User Manual v12
134
Symptom
Related Section
Differential mode is not working properly
See
Transmitting and Receiving Corrections
and refer to the
SERIALCONFIG
command.
There appears to be a problem with the receiver’s
memory
Refer to the
NVMRESTORE
command.
An environmental or memory failure. The receiver
temperature is out of acceptable range or the
internal thermometer is not working
Move the receiver to within an acceptable temperature
range. See:
l
l
CPT7 Electrical and Environmental Specifications
Overload and overrun problems. Either the CPU or
port buffers are overloaded
Reduce the amount of logging or increase the baud rate.
The receiver is indicating that an invalid
authorization code has been used
Refer to the
VERSION
log or
VALIDMODELS
log and the
MODEL
command or
AUTH
command.
The receiver is being affected by jamming
Move the receiver away from any possible jamming
sources
The receiver is being affected by interference
See
Move the GNSS antenna away from the source of the
interference signal.
If the interference mitigation feature is enabled on the
receiver, configure a filter within the Interference Toolkit
to filter out the interference signal.
The receiver’s Automatic Gain Control (AGC) is not
working properly
See the jamming symptom in this table
For information about the commands and logs in this section, refer to the
10.1 Examining the RXSTATUS Log
The RXSTATUS log provides detailed status information about your receiver and can be used to diagnose
problems. Refer to the
RXSTATUS
log for details on this log and on how to read the receiver error word and
status word.
Table 22: Resolving a Receiver Error Word
Table 23: Resolving an Error in the Receiver
on page 136 and
Table 24: Resolving an Error in the AUX1 Status Word
on page 137 have
actions to take when your receiver has an error flag in these words. If you are not able to resolve the condition,
contact
Bit Set
Action to Resolve
0-2
Issue a
FRESET
command (for bit 1, reload new firmware).
Table 22: Resolving a Receiver Error Word