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CB Radio Repair

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					CB Radio Repair
CB radios have been quietly popular for 30 years. When they first came on the scene, CB
radios were liberating. They gave housewives, bored commuters, and students of human
nature a new language: CB. "Ten-four" became an abused term. After the wild interest moved
on to the Internet chat rooms, CB continued to serve its initial purpose: two-way
communication on a budget. Here's how to fix a CB, good buddy.


How Does It Work?
A citizens band (CB) radio is both a receiver and a
transmitter. A radio receiver is an electronic device that
receives audio signals through an antenna, then amplifies
and sends the sound to speakers. A transmitter does the
opposite: it takes microphone (a reverse speaker) signals,
converts them into electronic signals, and distributes them
via an antenna. CB radios have 40 channels on which you
can speak and/or listen. Some, such as channel 9, are set
aside for special purposes (emergency assistance), but most    Citizens band radios are
are open to whatever you want to talk about. Mobile radios     miniature receivers and
and mobile telephones work approximately the same way.         transmittersthat fall under the
                                                               jurisdiction of the Federal
What Can Go Wrong?
                                                               Communications Commission
Mobile CB radios, those installed in cars and trucks, run on   (FCC). Work on the transmitter
car battery power. Base stations are corded radio              components should be done only
transmitters and receivers. A battery or cord may need         by an FCC radiotelephone-
replacing. Many CBs have fuses that can be replaced, often     licensed service person.
from the back of the unit. Contacts can be bent of corroded.
Controls and switches may be dirty. Antennas can break or
become disconnected.

Because CB radios transmit electronic signals, they come under the jurisdiction of the Federal
Communications Commission. You'll need an FCC technician's license to work on a CB or
mobile radio, other than a few tasks that can't impact transmission. Cleaning a CB is okay, as
is replacing an antenna. And you can replace a Fuse.

				
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