Trimble Outdoors aggps 332 ユーザーズマニュアル

AgGPS 332 GPS Receiver User Guide     61

Troubleshooting     6

The correction signal strength can drop to 
unusable levels. Causes include tree canopy 
cover between the receiver and the 
differential satellite, radar sets, and 
microwave transmitters.

Move the receiver away from the tree cover 
and/or from sources of electromagnetic 
interference.

The receiver is tracking satellites and tracking 
an OmniSTAR satellite beam, but is not 
receiving DGPS signals. The Home screen 
indicates how many satellites are being 
tracked, and whether a differential source is 
being tracked.

You see:
   h-3D for HP not converged
   H-3D for HP converged
   r-3D for RTK float
   R-3D for RTK fixed
   D-3D for DGPS

HP and RTK also give an indication of 
positional accuracy on the Home screen.

Check that your DGPS service subscription is 
still current and enabled.

For OmniSTAR service:

1. Use the AgRemote utility to navigate to 

one of the following screens, depending on 
what you are using:

• the Omni HP Info screen

• the Omni VBS Info screen.

2. Press 

4

 until Stop Date appears. 

If the message

 Access Unknown 

appears, 

contact OmniSTAR to reactivate your 
subscription. For more information, see 
OmniSTAR, page 47.

The receiver must be switched on and 
configured to track the correct satellite 
coverage beam before it can be reactivated.

The receiver automatically tracks the correct 
beam based on receiver geographic location. 
If the receiver is manually changed, automatic 
tracking is deactivated until you perform a 
hard reset or firmware flash.

When a satellite subscription is activated, the 
Home screen displays 

D/3D

.

In RTK mode, longer baselines require longer 
initialization times. (The baseline is the 
distance between the base receiver and the 
rover receivers.)

Wait for the receiver to initialize or consider 
repositioning the base receiver to shorten the 
baseline. Make sure the rover is in a clear area.