Trimble Outdoors r7 Manuale Utente

1 2       Overview

1 1 2      Trimble R7/R8 GPS Receiver User Guide

The Trimble R8 receiver is designed to withstand the rough treatment 
that typically occurs in the field. However, the receiver is a 
high-precision electronic instrument and should be treated with 
reasonable care.

C

WARNING – Operating or storing the Trimble R8 receiver outside the 
specified temperature range can damage it. For more information, see 
Chapter 17, Specifications.

High-power signals from a nearby radio or radar transmitter can 
overwhelm the receiver circuits. This does not harm the instrument, 
but it can prevent the receiver electronics from functioning correctly. 
Avoid using the receiver within 400 meters of powerful radar, 
television, or other transmitters. Low-power transmitters such as those 
used in cellphones and two-way radios normally do not interfere with 
receiver operations.

For more information, contact your local Trimble distributor.

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 R8 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.