Manual

Manual No. 016-3001-003 219
Troubleshooting the Viper Pro System
13
GPS Error Messages
No Rx file chosen
for this product
• VRC was selected for the
product during the
product setup, but no Rx
map was loaded
• Un-select the VRC selection or load an Rx map for the
product.
No Rx rate field
chosen for product
• VRC was selected and
an Rx map was loaded,
but a selection was not
made in the Rate field
• Select the appropriate item from the Rate field.
When VRC is
checked, a
Prescription File and
Rate Field must be
supplied
• VRC was selected during
the product setup, but a
prescription map and rate
field have not been
selected
• Press Browse to select the appropriate prescription
file. Select the appropriate rate item in the Rate field.
Color templates are
available only when
VRC is selected
• Color template selected
without selecting VRC
• A color template must be selected after VRC is
selected and the prescription map is loaded.
Issue Possible Cause Solution
No GPS Coverage
warning
• DGPS must be available
to start a VRC (Variable
Rate Control) or
guidance job
• Make sure that the GPS data is being received by the
Viper system.
Warning: You do not
have optimum GPS
coverage. Some
features may be
disabled.
• GPS reception does not
have differential
correction. Therefore,
some features, such as
guidance, will not be
available when starting a
job in this condition
• Enable the differential correction function in the GPS
receiver. Contact the receiver manufacturer for
additional information.
No Differential
• Differential GPS has not
been detected by Viper
• Check the GPS receiver to make sure that it has the
differential correction function. Contact the
manufacturer for additional information.
No GPS
• Viper does not detect a
GPS signal
• Make sure that the GPS receiver is turned on and
receiving a 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.
Issue Possible Cause Solution