Radio Shack TRC-234 Bedienungsanleitung

Cat. No. 21-1678

OWNER’S MANUAL

Please read before usin

this equipment.

TRC-234

5-Watt, 40-Channel

CB Walkie-Talkie

with 10 Weather Channels

21-1678.fm Page 1 Thursday, August 5, 1999 12:45 PM

FEATURES

Your Radio Shack TRC-234 5-Watt 40-Channel CB

Walkie-Talkie is a high performance transceiver that

also lets you tune into local and national weather ser-

vice broadcasts. This CB is perfect for recreational,

business, or emergency use. You can call other peo-

ple who have CBs at home, in their vehicles, or at

camp sites. You can also connect optional equip-

ment to your CB, such as external speakers, or a DC

power supply and base station antenna to set up a

base station in your home.

Your CB has the following features:

10-Channel WX Band Receiver — includes seven

national and three international weather frequencies.

You can hear local conditions and forecasts wherev-

er you travel.

LCD Digital Display — lets you see the channel

number you select, incoming and outgoing signal

strength, and the selected mode (such as Weather,

Emergency, etc.)

PLL (Phase-Locked Loop) Frequency Synthesiz-

er — provides highly accurate and stable tuning.

Two Ceramic Filters — provide superior selectivity

and freedom from adjacent channel interference.

Hysteresis Squelch Circuit — compensates for

fading signals and eliminates signal chopping during

reception.

Automatic Noise Limiting (ANL) Circuit — reduc-

es noise caused by nearby electrical equipment such

as motors or automotive ignition systems.

Emergency Channel 9 Switch — lets you quickly

switch to Channel 9 so you can report or monitor

emergency situations.

Radio Shack is a registered trademark

used by Tandy Corporation.

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High/Low Power Button — lets you save power by

selecting a suitable transmitting power for long or

short distances.

For your records, we recommend you record your

CB’s serial number here. The number is located on

the CB’s back panel.

Serial Number _____________________

FCC INFORMATION

The Federal Communications Commission (FCC)

does not require you to have a license to operate this

CB. However, you must know Part 95 of

FCC Rules

It explains the proper operation of a Class D citizen’s

band transceiver. We enclosed a copy of Part 95 with

your CB.

Warning: Do not open the CB to make any internal

adjustments. A CB is set up to transmit a regulated

signal on an assigned frequency. It is against the law

to alter or adjust the settings inside the unit to exceed

these limitations.

Any adjustments to a CB must be made by a quali-

fied technician using the proper test equipment.

To be safe and sure:

• Never open your CB’s case.

• Never change or replace anything in your CB.

Your CB might cause TV or radio interference even

when it is operating properly. To determine whether

your CB is causing the interference, turn it off. If the

interference goes away, your CB is causing it. Try to

eliminate the interference by:

• Moving your CB away from the receiver

• Contacting a radio/TV technician or your local

Radio Shack store for help

If you cannot eliminate the interference, the FCC re-

quires that you stop using your CB.

This device complies with Part 95 of

FCC Rules

. Op-

eration is subject to the following two conditions:

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1. This device must not cause harmful interfer-

ence.

2. This device must accept any interference re-

ceived, including interference that may cause

undesired operation.

CONTENTS

Preparation ........................................................... 6

Connecting Power ........................................... 6

Using Internal Batteries ............................ 6

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

Using Standard AC Power ....................... 9

Charging Nickel-Cadmium Batteries ............. 11

Connecting an Antenna ................................ 12

Using an External Speaker ........................... 13

Using an External Speaker/Microphone ........ 13

Using the Wrist Strap .................................... 14

Using the Belt Clip ......................................... 14

Operation ............................................................ 15

Receiving Transmissions

and Adjusting Squelch .................................. 15

Transmitting .................................................. 16

Turning On/Off the Light ................................ 17

Locking the Functions ................................... 18

Using Channel 9 ............................................ 18

Listening to the Weather Band ...................... 19

Operational Hints ............................................... 20

Common Uses for a CB ................................ 20

Business Uses ....................................... 20

Personal Uses ....................................... 20

Transmission Courtesy ................................. 21

Maximum Range ........................................... 21

Using Common 10-Codes ............................. 21

Channel Assignments ................................... 23

Care and Maintenance ....................................... 25

Specifications ..................................................... 26

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PREPARATION

CONNECTING POWER

You can power your transceiver from any of three

sources:

• Internal batteries (not supplied)

• Vehicle battery power (using an optional DC cig-

arette lighter power cord)

• Standard AC power (using an optional DC

power supply)

Note: Connecting a DC power cord automatically

disconnects internal batteries.

Using Internal Batteries

You can power your transceiver with nine AA batter-

ies. For the longest operation and best performance,

we recommend alkaline batteries (such as Cat. No.

23-552). Or, you can use rechargeable nickel-

cadmium batteries (Cat. No. 23-125).

Follow these steps to install or replace batteries.

1. If the transceiver is on, turn VOLUME/OFF coun-

terclockwise until it clicks to turn it off.

2. Remove the battery compartment cover by slid-

ing it in the direction of the arrow.

3. Remove any old batteries from the compart-

ment.

Cautions:

• Always dispose of old batteries promptly and

properly.

illustration

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• Never leave dead, old, or weak non-

rechargeable batteries in the transceiver.

They can leak chemicals and corrode or dam-

age electronic circuits.

• Do not expose batteries to extreme heat or

fire. They might explode and cause personal

injury or damage equipment.

4. Position the NI/AL switch to match the battery

type.

•NI: for rechargeable nickel-cadmium batter-

ies (see “Charging Nickel-Cadmium Batter-

ies”).

•AL: for standard or alkaline batteries.

5. Install nine fresh non-rechargeable batteries or

nine nickel-cadmium batteries as indicated by

the polarity symbols (+ and –) marked inside the

battery compartment.

Cautions:

• Improper installation (incorrect polarity) might

damage the transceiver.

• Use only fresh batteries of the required size

and type. Never mix new and old batteries or

rechargeable and non-chargeable batteries in

the transceiver.

illustration

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• If you do not plan to use batteries in the trans-

ceiver for a month or more, remove the bat-

teries. This protects the transceiver from

possible battery leakage.

6. Replace the cover.

When BATT (battery low) appears on the display, re-

place or recharge the batteries.

Using Vehicle Battery Power

You can power your transceiver from your vehicle’s

cigarette lighter socket with an optional DC cigarette

lighter power cord (such as Cat. No. 270-1534).

Cautions:

• You must use a DC power cord that supplies 12

volts and delivers at least 2.5 amps. Its center tip

must be set to positive, and it must have a plug

that properly fits your transceiver’s DC13.8V

CHARGE jack. The recommended power cord

meets these requirements. Using a power cord

that does not meet these specifications could

damage the transceiver or the power cord.

• To protect your vehicle’s electrical system,

always plug the power cord into the transceiver

before you plug it into your vehicle’s cigarette

lighter socket. Always unplug the power cord

from the vehicle’s cigarette lighter socket before

you unplug it from the transceiver.

1. Insert the power cord’s barrel plug into the trans-

ceiver’s DC13.8V CHARGE jack.

2. Plug the other end of the cord into your vehicle’s

cigarette lighter socket.

illustration

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Notes:

• If you installed rechargeable nickel-cadmium

batteries in the transceiver, connect the DC

power cord to the DC13.8V CHARGE jack and

be sure the NI/AL switch is set to NI. This pow-

ers the transceiver and recharges the batter-

ies at the same time. See “Charging Nickel-

Cadmium Batteries.”

• If the transceiver does not operate when you

use the power cord, unplug the cord from the

cigarette lighter socket and clean the socket

to remove ashes and debris. If it still does not

operate properly, check the in-line fuse in the

power cord.

Using Standard AC Power

You can operate the transceiver from AC power us-

ing a 12-volt DC power supply (such as Cat. No. 22-

120, not supplied), a DC cigarette lighter power cord

(such as Cat. No. 270-1534, not supplied), and a cig-

arette lighter accessory outlet (such as Cat. No. 270-

1539, not supplied).

Cautions:

• You must use a DC power cord that supplies 12

volts and delivers at least 2.5 amps. Its center tip

must be set to positive, and it must have a plug

that properly fits your transceiver’s DC13.8V

CHARGE jack. The recommended power cord

meets these requirements. Using a power cord

that does not meet these specifications could

damage the transceiver or the power cord.

• Be sure you connect the DC power cord to the

transceiver before you connect it to the power

supply. Then disconnectthe powercord from the

power supply before you disconnect it from the

transceiver.

Note: Most 12-volt DC power supplies plug into a

standard AC outlet to produce DC power. Before

connecting your transceiver to a 12-volt DC power

supply, read and follow the instructions included with

the power supply.

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Follow these steps to power the transceiver from AC

power.

1. Using the double-sided foam tape supplied with

the cigarette lighter accessory outlet, mount the

accessory outlet to the DC power supply.

2. Insert the power cord’s barrel plug into the trans-

ceiver’s DC13.8V CHARGE jack.

Note: If you installed rechargeable nickel-cad-

mium batteries in the transceiver, connect the

power cord to the DC13.8V CHARGE jack and be

sure the NI/AL switch is set to NI. This powers

the transceiver and recharges the batteries at

the same time. See “Charging Nickel-Cadmium

Batteries.”

3. Insert the cigarette lighter plug on the DC power

cord into the cigarette lighter accessory outlet.

4. Connect the DC power supply to a standard AC

outlet.

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CHARGING NICKEL-CADMIUM

BATTERIES

The transceiver has a built-in circuit that lets you re-

charge nickel-cadmium batteries while they are in the

transceiver. To charge the batteries, connect a DC

power cord to the transceiver’s DC13.8V CHARGE

jack and be sure the NI/AL switch is set to NI (see

“Using Standard AC Power” or “Using Vehicle Bat-

tery Power”).

Warning: Do not connect a power cord to the trans-

ceiver’s DC13.8V CHARGE jack if you installed non-re-

chargeable batteries (standard, extra-life, or alkaline)

and the NI/AL switch is set to NI. Non-rechargeable

batteries become hot and can even explode if you try

to recharge them.

It takes about 16 to 18 hours to recharge batteries

that are fully discharged.

Nickel-cadmium batteries come fully discharged. The

first time you use nickel-cadmium batteries, charge

them about 18 hours to bring them to a full charge.

Notes:

• Nickel-cadmium batteries last longer and deliver

more power if you occasionally let them fully dis-

charge. To do this, simply use the transceiver

until it no longer transmits or receives.

• To prevent permanent nickel-cadmium battery

power loss, do not charge the batteries at tem-

peratures below 14°F (–10°C) or above 131°F

(55°C).

• Do not overcharge batteries. Overcharging can

severely reduce the battery’s useful life.

Important: At the end of a rechargeable battery’s

useful life, it must be recycled or disposed of proper-

ly. Contact your local, county, or state hazardous

waste management authorities for information on re-

cycling or disposal programs in your area. Some op-

tions that might be available are: municipal curb-side

collection, drop off boxes at retailers, recycling col-

lection centers, and mail-back programs.

21-1678.fm Page 10 Thursday, August 5, 1999 12:45 PM

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