Trimble Outdoors r7 Manuale Utente

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2       Overview
1 0      Trimble R7/R8 GPS Receiver User Guide
Tr
imble R7 Operation
2.4
COCOM Limits
The U.S. Department of Commerce requires that all exportable GPS 
products contain performance limitations so that they cannot be used 
in a manner that could threaten the security of the United States. The 
following limitations are implemented on the Trimble R7 receiver.
Immediate access to satellite measurements and navigation results is 
disabled when the receiver’s velocity is computed to be greater than 
1000 knots, or its altitude is computed to be above 18,000 meters. The 
receiver continuously resets until the COCOM situation is cleared.