Step #6 Antenna And Coax Cable; Step #7 Connect Power; Step #8 Intercom Operation - Rugged Computing RRP660 Installation Instructions

Step #6 Antenna and coax cable

Find a good location for the antenna. For best performance mount the antenna on a metal or
aluminum roof in the center. The ½ wave NGP antennas do not require a ground plane but it
is always best to have enough metal surface area over 2'x 2' ft. area.
Mount NMO connector(Gold) to a 3/8" hole in roof or roll bar tap. Be sure to remove any
paint so the NMO mount gets a good ground. Route the coax cable away from ignition boxes
and coils to the car to car radio. IMPORTANT! If there is any extra coax cable DO NOT
COIL CABLE, simply route cable further around car. Coiling this cable will cause transmit
problems, and limit radio range.

Step #7 Connect power

Radio: Route the power cable supplied with the car to car radio directly to the battery. DO
NOT remove the fuses that are in line with the factory cable. This may void the factory
warranty.
Intercom: Route the power cable supplied with the intercom directly to the battery. DO NOT
remove the fuses that are in line with the factory cable. This may void the factory warranty.
Note: Route all power cables directly to the battery. If power is tied to ignition, light, or other
power sources a ground loop problem may occure.
Note: The RRP600 intercom will run on 9-24V DC. This intercom is very efficient and will
run on very low power.

Step #8 Intercom operation

Rotate VOX (Squelch) control on intercom full clockwise. Turn on intercom by rotating
volume control clockwise. Put headset on and move microphone as close to your mouth as
possible. Speak into mic and you should hear your voice in the headset. This is a VOX
intercom with sidetone. Adjust the volume control to the desired level. Rotate the squelch
control counter clockwise one click at a time until the mics turn off. Speak into mic and the
VOX should turn mic on. Set this level higher to cut out wind and engine noise.
Note: Running the mics as close to your mouth as possible will allow a higher squelch setting
to be used. This will block out more background noise while mics are turned off.
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