User's Manual

3 Setting up the Receiver
18 Trimble R7/R8 GPS Receiver User Guide
Trimble R7 GPS Receiver Operation
3.2 Setup Guidelines
Consider the following guidelines when setting up the Trimble R7
receiver.
32.1 Environmental conditions
Although the Trimble R7 receiver has a waterproof housing, reasonable
care should be taken to keep the unit dry. 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
Avoiding these conditions improves the receiver performance and
long-term reliability.
32.2 Sources of electrical interference
Avoid the following sources of electrical and magnetic noise:
• Gasoline engines (spark plugs)
• Televisions and computer monitors
• Alternators and generators
• Electric motors
• Equipment with DC-to-AC converters
• Fluorescent lights
• Switching power supplies