Trimble Inc. 66430 用户手册

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页码 75
Juno SA Handheld User Guide     73
Troubleshooting     6
Real-time DGPS issues       
Problem
Cause
Solution
The handheld is not 
receiving SBAS 
real-time corrections
The SBAS satellite is 
obstructed from view.
Check the location of the SBAS satellite in the Skyplot section 
of the GPS field software, and if possible move to a different 
location.
You are outside the 
WAAS, EGNOS, or MSAS 
coverage area.
Wide Area Augmentation System (WAAS) satellites are 
tracked in the Continental United States including Alaska, 
and in southern parts of Canada.
European Geostationary Navigation Overlay Service (EGNOS) 
satellites are tracked in Europe. 
MTSAT Satellite-based Augmentation System (MSAS) 
satellites are tracked in Japan.