Trimble Outdoors r7 Manuale Utente

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Trimble R7/R8 GPS Receiver User Guide     1 1 7
Setting up the Receiver     1 3
Tr
imble R8 Operation
13.3
 Setup Guidelines
 
Consider the following guidelines when setting up the Trimble R8 
receiver.
C
Caution – You must maintain a minimum separation distance of 20 cm 
(approximately 8 in.) between yourself and the radiating GSM antenna for 
this device to satisfy the RF Exposure requirements of the FCC. 
For mobile operation, the maximum gain of the GSM antenna must not 
exceed 0 dBi.
133.1
Environmental conditions
 
Although the Trimble R8 receiver has a waterproof housing, 
reasonable care should be taken to protect the unit. Avoid exposure to 
extreme environmental conditions, including:
Water
Heat greater than 65 °C (149 °F)
Cold less than –40 °C (–40 °F)
Corrosive fluids and gases
133.2
Sources of electrical interference
 
Avoid the following sources of electrical and magnetic noise:
Gasoline engines (spark plugs)
Televisions and PC monitors
Alternators and generators
Electric motors
Equipment with DC-to-AC converters
Fluorescent lights
Switching power supplies