Clenney Communications RBS CB User Manual

RBS-CB USERS MANUAL

Specific Guidelines

For

Florida Department of Transportation

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Important Notice

CB Rule 19, 27 95.419, 95.427

Written permission must be received from the FCC to use this type of device. A written
letter must be sent to the FCC to request operation. This letter must include all applicable
information to justify use of this device as well as the GPS location of the device. If you
receive FCC approval you must keep the approval as part of your station records per CB
Rule 27.

See additional rules at the end of this document for operation of this device

The RBS-CB comes with the following items:

•

18 ft. A99 antenna by Solarcon with mounting brackets

•

GPK-1 ground plane kit

•

75 foot coax CXP1318FC75 from Cable Experts

•

1 RBS-CB (19 inch 1 RU)

Installing the antenna: The antenna should only be installed by qualified
technicians

The 75' cable that connects to the antenna should not be coiled or kinked!

This antenna system uses a counterpoise (the 4 fiberglass radials protruding from the base) to
provide a ground plane. The cable should be installed inside the concrete pole or inside a conduit
mounted to the concrete pole. Note: The antenna must protrude above the pole to be effective.
Connect the cable to antenna making sure the connector is not cross threaded. Excess coax
should not be coiled, but placed in a bowtie configuration. Do not allow any kinks to form in
cable.

Note: The antenna height cannot exceed 60 feet or 20 feet above the structure it is attached
to. If the antenna does not protrude above the pole it is mounted on it will not perform
adequately.

The antenna SWR must be checked. This requires a SWR meter such as the PDC2 by Astatic and
a CB radio (or the RBS-CB transmitter can be activated).

When measuring the SWR, the bucket truck must move well away from the antenna.

An SWR of 1:1.5 or less is considered acceptable, however the installer should strive to
minimize the SWR as it improves transmission range and protects the transmitter.

If using a SWR meter like the PDC2, the forward power can be measured. CB radios have about
4 watts of output power into a properly tuned antenna.