Radio Shack TRC-442 User Manual

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Cat. No. 21-1586

OWNER’S MANUAL

Please read before using this equipment.

TRC-442

Full-Power 40-Channel

Mobile CB Radio

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FEATURES

Your RadioShack TRC-442 Full­Power 40-Channel Mobile CB Radio is
a high performing, water resistant CB
which can be used alm ost anywhere.
The CB is perfect for recreational,
business, or emergenc y use. You c an
call for help, or call other people with
CBs at home, in their vehicles, or at
camp sites. You can also conne ct i t to
optional equipment, such as an option­al power supply or a base st ation an­tenna.

Your CB also has these advanced fea­tures:

Phase-Locked Loop (PLL) F req uen­c

nthesizer

— provides highly ac-

curate and stable tuning.

Two Ceramic Filters

— provide su­perior channel selectivity and prevent
adjacent-channel interference.

Automatic Modulation Control

—
prevents the transmitter signal from
over-modulating and distorting.

Automatic Noise Limiter

— reduces

impulse-type noises while receiving.

e, Illuminated, Digital Displa

Lar

— clearly shows the channel number.

Base Station Capabilit

— lets you
use the transceiver as a base station
powered from a standard AC outlet
(with an optional power supply and
base station antenna).

Universal Mountin

Bracket

— lets
you securely mount the CB in your ve­hicle or on a table or shelf in your
home.

Notes:

• To use this CB, you need a mobile
or base station antenna.

• The CB radio is water resistant,
not waterproof. Do not submerge
it or put it where water will continu­ally run over it.

We recommend you record your CB’s
serial number here. The number is on
the CB’s back panel.

Serial Number _________________

Ad

usta bl e Sque l ch

— reduces noise

between transmissions.

Rotar

Tuning Control

— for conve-

nient channel selection.

©

1997, 1998 Tandy Corporation.

RadioShack is a registered trademark used by Tandy Corporation.

All Rights Reserved.

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FCC INFORMATION

The Federal Communications Com­mission (FCC) does not require you to
have a license to operate this CB ra­dio. However, you must know Part 95

FCC Rules

of
operation of a Class D citizen’s band
transceiver. We have provided a copy
of these regulations with your CB ra­dio.

Warning:

make any internal adjustments. Any
internal adjustments can be made
only by an authorized service techni­cian.

Internal adjustments and/or modifica­tions can lead to illegal operation as
defined by Part 95 of
Such illegal operat ion can lead to ve ry
serious consequences.

To be safe and sure:

• Never open your CB radio’s case.

. It explains the proper

Do not open your CB to

FCC Rules

Your CB radio might cause T V or ra­dio interference even when it is oper­ating properly. To determine whether
your CB radio is causing the interfer­ence, turn off your CB . If the i nterfer ­ence goes away, your CB radio is
causing it. Try to eliminate the interfer­ence by:

• Moving your CB radio away from
the receiver

• Contacting your local Ra­dioShack store for help

If you cannot eliminate the interfer­ence, the FCC requires that you stop
using your CB radio.

This device complie s with Part 15 of

FCC Rules

following two conditions: (1) this de-

.

vice may not cause harmful interfer­ence, and (2) this device must accept
any interference received, including
interference that may cause undesired
operation.

. Operation is subject to the

• Never change or replace anything
in your CB radio.

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CONTENTS

Installation ............................................................................................................ 5

Attaching the Microphone Holder .................................................................... 5

Mounting the TRC-442 . ................................................................................... 5

Connecting the Microphone . ............................................................................ 7

Installing an Antenna ....................................................................................... 7

Selecting an Antenna ................................................................................ 7

Connecting an Antenna ............................................................................ 7

Using Vehicle Battery Power ........................................................................... 8

Using the CB as a Base Station ...................................................................... 9

Operation ............................................................................................................ 10

Turning On the CB and Receiving Transmissions ......................................... 10

Transmitting ................................................................................................... 11

CB Operation Tips .............................................................................................. 12

Common Uses for a CB Radio ...................................................................... 12

Business Uses ........................................................................................ 12

Personal Uses ......................................................................................... 12

CB Courtesy .................................................................................................. 12

Using Common 10-Codes ............................................................................. 13

Maximum Range . .......................................................................................... 14

Troubleshootin

Reducing Noise ............................................................ .......... ....... .. .......... .... 16

Care and Maintenance ....................................................................................... 17

Replacing the Fuse ........................................................................................ 18

Specifications ..................................................................................................... 19

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................................................................................................. 15

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INSTALLATION

ATTACHING THE
MICROPHONE HOLDER

You can connect the microphone hold­er to the right side of the transceiver or
to another location in your vehicle.

To attach the holder to the transceiver,
secure it with the supplied mounting
screws and lockwashers.

To attach the holder to another loca­tion in the vehicle, such as t he dash­board, follow these steps.

1. Using the holder as a template,
mark the positions for the mount­ing screw holes at the desired
location.

2. At each marked position, drill a
hole slightly smaller than the sup­plied mounting screws.

Caution:

into anything behind the mount­ing surface.

Be careful not to drill

3. Attach the holder at the mou nting
location using the supplied mount­ing screws, lockwashers, wash­ers, and nuts.

MOUNTING THE TRC-442

The most common mounting location
for this CB is under a vehicle’s dash­board. However, if you use the TRC­442 as a base station, you can place it
on a desk, shelf, or table. See “Using
the CB as a Base Station” on Page 9.

If you are mounting the CB in a vehi­cle, choose a location where:

• You can easily reach the CB.

• Wires and cables are c lear of the
vehicle’s pedals or other moving
parts.

• The CB is not directly in front of
heating vents.

• All wires and cables can reach
their connection points.

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Cautions:

• If you use the TRC-442 in a vehi­cle, mount it securely to avoid
damage to the CB or vehicle or in­jury to anyone in the veh icle dur­ing sudden starts or stops.

• Do not mount the CB where it
could damage or interfere with the
proper operation of any passive
restraint safety device (an air bag
or seat belt).

Follow these steps to mount the CB
using the supplied hardware.

1. Using the mounting bracket as a
template, mark the positions for
the screw holes on the mounting
surface.

3. Attach the bracket to the mounting
surface with the supplied mount­ing bolts, lockwashers, washers,
and nuts.

Note: If you cannot reach behind
the mounting surface to attach the
nuts on the bolts, use the supplied
screws, lockwashers, and wash­ers to secure the bracket.

4. Attach the CB to the mounting
bracket using the suppl ied rubber
washers and mounting knobs.

2. In each marked location, drill a
hole slightly smaller than the sup­plied mounting bolts.

Caution: Be careful not to drill
into objects behind the mounting
surface.

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Rubber Washer