Radio Shack 21-1620 Bedienungsanleitung

OWNER’S MANUAL Cat. No. 21-1620

TRC-235

2 Watt 3-Channel

CB Walkie-Talkie

Please read before using thisequipment.

21-1620.fm Page 1 Thursday, August 5, 1999 11:16 AM

FEATURES

Your RadioShack TRC-235 2 Watt 3-

Channel CB Walkie-Talkie is a portable,

two-way radio you can carry almost any-

where. You can use your TRC-235

around the house, in your office, or in your

car or boat. You can also use it on fishing

and camping trips, or at your business for

supervisory, security, or warehouse per-

sonnel.

Your TRC-235 has the following features:

Factory-Installed Crystals — let you im-

mediately begin using your TRC-235 on

Channel 14.

Three-Channel Operation — comes with

Channel 14 crystals installed, but lets you

install optional crystals so you can oper-

ate the TRC-235 on any two of the other

39 available CB channels. (See “Adding

Crystals” on Page 24).

Built-In Modulation Limiter Circuit —

automatically adjusts to a variety of voice

levels to ensure a clear transmission.

Crystal-Controlled Circuitry — provides

accurate and stable channel selection.

Adjustable Squelch — helps to eliminate

noise between transmissions.

Telescoping Antenna — provides excel-

lent reception and transmission.

External Antenna Jack — lets you con-

nect an external antenna (not supplied) to

your TRC-235 for mobile or base-station

use, or to extend the TRC-235’s range.

Battery Test Button and Battery Indica-

tor — lets you check the batteries’ condi-

tion.

RadioShack is a registered trademark

used by Tandy Corporation.

21-1620.fm Page 2 Thursday, August 5, 1999 11:16 AM

Power/Charging Jack — lets you power

your TRC-235 from an AC or DC power

source,so you can use theTRC-235 with-

out draining the batteries. And, lets you

charge nickel-cadmium batteries without

removing them from the TRC-235.

Note: You need eight AA alkaline batter-

ies or ten nickel-cadmium rechargeable

batteries (not supplied) to power your

TRC-235.

FCC INFORMATION

The Federal Communications Commis-

sion (FCC) does not require you to have

a license to operate this walkie-talkie.

However, the FCC does require that you

read and know Part 95 of

FCC Rules

These rules apply to the operation of a

Class D CB. We have provided a copy of

these regulations with your TRC-235.

Internal adjustments and/or modifications

can lead to illegal operation as defined by

Part95of

FCC Rules

. Suchillegaloperation

can lead to very serious consequences.

To be safe and sure:

• Never open your TRC-235’s case

except to install or change crystals.

• Never modify your TRC-235.

We recommend you record the TRC-

235’s serial number here. The serial

number is located on the radio’s back

panel:

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Your TRC-235 might cause TV or radio

interference even when it is operating

properly. To determine whether your

TRC-235 is causing the interference, turn

off your TRC-235. If the interference goes

away, your TRC-235 is causing it. Try to

eliminate the interference by:

• Moving your TRC-235 away from the

TV or radio

• Contacting your local RadioShack

store for help

Warning: Do not open your TRC-235 to

make any internal adjustments other than

installing or changing crystals. Any inter-

nal adjustments should be made only by

authorized service personnel.

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CONTENTS

Powering the CB ................................ 6

Using the POWER Jack and

ALKALINE/NI-CD Switch................... 6

Using Batteries ................................. 7

Testing the Battery Power .......... 10

Recharging Nickel-Cadmium

Batteries ..................................... 10

Using Vehicle Battery Power........... 12

Using AC Power ............................. 13

External Antenna .............................. 15

Operation .......................................... 17

Receiving Transmissions and

Adjusting Squelch .......................... 17

Transmitting .................................... 19

CB Operation Tips ........................... 20

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

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

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

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

CB Courtesy ................................... 23

Maximum Range ............................ 23

Adding Crystals ............................... 24

Troubleshooting ............................... 28

Maintenance ..................................... 29

Specifications .................................. 30

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POWERING THE CB

You can power yourTRC-235 from any of

these sources:

• Eight AA alkaline batteries (not sup-

plied) with two dummy batteries

(supplied)

• Ten rechargeable AA nickel-

cadmium batteries (not supplied)

• 12-volt vehicle battery power using a

fused power cord (not supplied)

• Standard AC power using a power

supply (not supplied)

USING THE POWER JACK

AND ALKALINE/NI-CD

SWITCH

The POWER jack lets you connect an ex-

ternal power source (such as your vehi-

cle’s battery power or AC power) to power

the TRC-235, or connect a battery charg-

er to charge nickel-cadmium batteries

while they are in the TRC-235.

The TRC-235 also has a slide switch (AL-

KALINE/NI–CD) inside the battery com-

partment which you must set correctly,

depending on what power source you are

using and whether or not you want to

charge rechargeable batteries while they

are in the TRC-235.

21-1620.fm Page 6 Thursday, August 5, 1999 11:16 AM

•SetittoALKALINE before you con-

nect an external power source (vehi-

cle battery power or AC adapter) to

the POWER jack or while you are us-

ing internal batteries (alkaline or re-

chargeable).

•SetittoNI–CD

only

when you are

connecting a battery charger in order

to charge the installed rechargeable

batteries. Be sure you set it to NI–CD

before

you connect a battery charger

to the POWER jack.

Warning: To avoid injuring yourself or

damaging the TRC-235, connect a bat-

tery charger to the POWER jack

only

when nickel-cadmium batteries are in-

stalled (see “Recharging Nickel-Cadmium

Batteries” on Page 10). Never try to re-

charge non-rechargeable batteries. They

could get very hot and explode.

Note: You can connect an external pow-

er source regardless of the type of batter-

ies you installed.

USING BATTERIES

You can power the TRC-235 from eight

AA alkaline batteries (such as Ra-

dioShack Cat. No. 23-552) with the two

supplied dummy batteries, or ten re-

chargeable AA nickel-cadmium batteries

(such as Cat. No. 23-125).

21-1620.fm Page 7 Thursday, August 5, 1999 11:16 AM

Cautions:

• Always use fresh, or freshly charged,

batteries of the required size and

type.

• Do not mix old and new batteries,

different types of batteries (stan-

dard, alkaline, or rechargeable

nickel-cadmium), or rechargeable

batteries of different capacities.

Follow these steps to install the batteries.

1. If the TRC-235 is on, turn OFF/VOLUME

fully counterclockwise until it clicks to

turn it off.

2. Slide the strap on the back of the

TRC-235 through the buckle and the

battery compartment cover to re-

move it.

3. Slide the battery compartment cover

in the direction of the arrow to

remove it.

21-1620.fm Page 8 Thursday, August 5, 1999 11:16 AM

4. Be sure ALKALINE/NI–CD inside the

battery compartment is set to ALKA-

LINE.

5. Put eight AA alkaline batteries and

the two supplied dummy batteries, or

ten AA nickel-cadmium batteries into

the battery compartment, as indi-

cated by the polarity symbols (+ and

–) marked inside.

Note: Before you use the TRC-235

with nickel-cadmium batteries, you

need to charge the batteries (see

“Recharging Nickel-Cadmium Batter-

ies” on Page 10).

6. Replace the battery compartment

cover and the strap on the back of

the TRC-235.

Cautions:

• If you will not be using the TRC-235

from battery power for several

months, remove the batteries.

• Dispose of old batteries promptly

and properly.

21-1620.fm Page 9 Thursday, August 5, 1999 11:16 AM

Testing the Battery Power

1. Turn on the TRC-235 by rotating

OFF/VOLUME clockwise until it clicks.

2. Hold down BATT TEST. If the indica-

tor lights, there is enough battery

power to operate the CB. If the indi-

cator is dim or does not light, replace

or recharge the batteries.

Recharging Nickel-Cadmium

Batteries

You can use a battery charger, such as

Cat. No. 23-249 (not supplied), to charge

or recharge nickel-cadmium batteries

while they are inside the TRC-235’s bat-

tery compartment.

Do not use the TRC-235 while you are

charging the nickel-cadmium batteries.

Cautions:

• Use only the recommended battery

charger to recharge the batteries in

the TRC-235. Other chargers could

damage your TRC-235 or the batter-

ies.

• Be careful not to overcharge nickel-

cadmium batteries.

• To prevent damage to rechargeable

nickel-cadmium batteries, never

charge them in an area where the

temperature is above 90°F (32°C) or

below 40°F (4.5°C).

21-1620.fm Page 10 Thursday, August 5, 1999 11:16 AM

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