Specifications

Manual # 016-0159-894 Rev H 01/07
297
12 - Troubleshooting
GPS Error Messages
Issue Possible Cause Solution
No GPS Coverage
You must have Make sure that the GPS data is being received by
warning
GPS coverage to the Viper system.
start a non-VRC
(Variable Rate
Control) job
Warning: You do
GPS reception Enable the differential correction function in the
not have optimum
does not have GPS receiver. Contact the receiver manufacturer
GPS coverage.
differential for additional information.
Some features
correction.
may be disabled.
Therefore, some
features, such as
guidance, will
not be available
when starting a
job in this
condition
No Differential
Differential GPS Check the GPS receiver to make sure that it has
has not been the differential correction function. Contact the
detected by manufacturer for additional information.
Viper
No GPS
Viper does no Make sure that the GPS receiver is turned on and
detect a GPS receiving a signal.
signal
Make sure that the port setting for Viper and the
GPS receiver match.
Make sure that the required NMEA messages are
turned on in the GPS receiver.