Radio Shack TRC-511 Manual de usuario

Owner’s Manual

Please read before using this equipment.

TRC-511 40-Channel

Mini-Mobile CB Radio

with Channel 9/19 Priority Switch

21-1705.fm Page 1 Thursday, September 7, 2000 10:41 AM

Contents

Features .................................................................................................................................. 3

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

Mounting the Microphone Holder ...................................................................................... 5

Mounting the CB ............................................................................................................... 5

Connecting an Antenna .................................................................................................... 6

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

Using Vehicle Battery Power ............................................................................................. 7

Using the CB as a Base Station ........................................................................................ 7

Operation ................................................................................................................................ 9

Receiving Transmissions and Adjusting Squelch ............................................................. 9

Transmitting ...................................................................................................................... 9

Selecting An Emergency Channel .................................................................................... 9

Operational Hints ................................................................................................................. 10

Common Uses for a CB .................................................................................................. 10

Personal Uses ......................................................................................................... 10

Business Uses ......................................................................................................... 10

Transmission Courtesy ................................................................................................... 10

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

Maximum Range ............................................................................................................. 11

Reducing Noise ............................................................................................................... 12

Troubleshooting ................................................................................................................... 13

Care and Maintenance ......................................................................................................... 14

Replacing the Fuse ......................................................................................................... 14

Specifications ....................................................................................................................... 15

RadioShack and RadioShack.com are trademarks used by RadioShack Corporation.

21-1705.fm Page 2 Thursday, September 7, 2000 10:41 AM

Features

Your RadioShack 40-Channel Mini-Mobile

CB Radio is a great way to communicate

with other CB radio operators. Because of its

convenient compact size, you can use it al-

most anywhere. You can mount it in a vehi-

cle for mobile use, or in your home or office

for use as a base station.

Your CB has these advanced features.

Emergency Channel Switch — lets you

quickly switch to channel 9 or 19 to monitor

or report emergency situations.

TX (Transmit) and RX (Receive) Indicators

— light to show when the CB is transmitting

or receiving.

Full Legal Power — gives you the full range

of CB channels with the maximum allowed

transmit power.

Up/Down Channel Selector — lets you eas-

ily select a channel with the press of a but-

ton.

Adjustable Squelch — helps to eliminate

noise between transmissions.

Automatic Noise Limiter (ANL) Circuit —

reduces impulse-type noise during reception.

5-Pin DIN Mic Connector — uses five

prongs to reinforce a clear connection be-

tween the mic and the receiver.

Automatic Modulation — prevents the

transmitter signal from over-modulating and

distorting.

(PLL) Frequency Synthesizer — provides

highly accurate and stable tuning.

Crystal-Controlled Digital Tuning —pro-

vides precise transmission tuning capability

when selecting a channel.

Two Ceramic Filters — provide superior

channel selectivity and prevent adjacent

channel interference.

Universal Mounting Bracket — lets you

mount your CB securely in your vehicle, or

on a table or shelf in your home or office.

External Antenna Jack — lets you attach

an optional antenna to your CB radio for in-

creased range.

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4Features

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 of

FCC Rules

. These rules ap-

ply to the operation of a Class D CB. We

have provided a copy of these regulations

with your CB radio.

Warning: Do not open your CB radio to

make any internal adjustments. A CB radio 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.

To be safe and sure:

• never open your CB radio’s cases.

• never change or replace anything in

your CB radio.

Your CB radio might cause TV or radio inter-

ference even when it is operating properly.

To determine whether your CB radio is caus-

ing the interference, turn off your CB radio. If

the interference goes away, your CB is caus-

ing it. Try to eliminate the interference by:

• moving your CB radio away from the TV

or radio

• contacting your local RadioShack store

for help

If you cannot eliminate the interference, the

FCC requires that you stop using your CB ra-

dio.

This device complies with Part 15 of

FCC

Rules

. Operation is subject to the following

two conditions: 1) this device may not cause

harmful interference, and 2) this device must

accept any interference received, including

interference that may cause undesired oper-

ation.

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Installation

MOUNTING THE

MICROPHONE HOLDER

You can mount the microphone holder on ei-

ther side of the CB or at another location

near your receiver.

Warning: Do not mount the CB microphone

holder where it could damage or interfere

with the operation of any passive restraint

safety device (an air bag or seat belt).

To mount the holder to either side of the CB,

use the two supplied 1/8-inch (3-mm)

tapered-tip screws, plain washers, and

spring washers (as shown) to secure the

holder.

To mount the holder near the receiver in an-

other location in your vehicle (such as a

dashboard), or somewhere in your home or

office, such as a nearby wall, follow these

steps.

1. Using the holder as a template, mark the

positions for the screw holes at the

desired location.

2. At each marked position, drill a pilot hole

slightly smaller than the mounting

screws.

Caution: Be careful not to drill into any-

thing behind the mounting surface.

3. Mount the holder using the machine

screws, spring washers, plain washers

and nuts.

Note: If you cannot reach behind the mount-

ing surface to attach the nuts to the machine

screws, use the two supplied 1/8-inch (3-mm)

tapered-tip screws and plain washers.

MOUNTING THE CB

The most common mounting location for this

CB is under a vehicle’s dashboard. However,

if you use the CB as a base station in your

home or office, you can place it on a desk,

shelf, or table (see “Using the CB as a Base

Station” on Page 7).

If you are mounting the CB in a vehicle,

choose a location where:

• you can easily reach the CB

• wires and cables are clear of the vehi-

cle’s pedals and other moving parts

• the CB is not directly in front of heating

vents

• all wires and cables can reach their con-

nection point

Mounting Surface

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6Installation

Warning: If you use the CB in a vehicle,

mount it securely to avoid damage to the CB

or vehicle or injury to passengers.

Follow these steps to mount the CB using

the supplied hardware.

1. Using the mounting bracket as a tem-

plate, mark the positions for the screw

holes on the mounting surface.

2. In each marked location, drill a pilot hole

slightly smaller than the two 1/5-inch

(5-mm) mounting screws.

Caution: Be careful not to drill into

objects behind the mounting surface.

3. Mount the bracket to the mounting sur-

face with the 1/5-inch (5-mm) mounting

screws, spring washers, plain washers,

and nuts.

Note: If you cannot reach behind the

mounting surface to attach the nuts on

the bolts, use the 1/5-inch (5-mm)

tapered-tip screws and plain washers to

secure the bracket.

4. Attach the CB to the mounting bracket

using the two rubber washers and

mounting knobs.

CONNECTING AN ANTENNA

There are many different types of antennas

for mobile CBs, each with its own benefits.

You can choose one that best fits your

needs, available at your local RadioShack

store.

Note: If you are using this CB as a base sta-

tion, see “Using the CB as a Base Station”

on Page 7.

When you choose an antenna, keep in mind

that, for the best performance, you should

mount the antenna:

• as high as possible on your vehicle,

home or building

• as far as possible from sources of elec-

trical noise

• as vertically as possible

Once you choose an antenna, follow its

mounting instructions. Then route the cable

to the CB and connect the cable to ANTEN-

NA on the back of the CB.

Mounting

Surface

Antenna

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Installation

Cautions:

• Avoid routing the cable next to sharp

edges or moving parts which might dam-

age the cable.

• Do not run the cable next to power

cables or other radio antenna cables.

• Do not run the cable through a vehicle’s

engine compartment or other areas that

produce extreme heat.

To take advantage of your radio’s maximum

range, adjust the antenna’s Standing Wave

Ratio (SWR) using an SWR meter, available

at your local RadioShack store.

Follow the instructions supplied with the

SWR meter and antenna to adjust your an-

tenna’s SWR to the lowest possible value.

SWR values of 2.0:1 are generally accept-

able, with readings of 1.5:1 or lower being

more desirable.

CONNECTING THE

MICROPHONE

1. Press the plastic tab on the supplied

microphone’s plug and align the 5-pin

DIN microphone plug with the corre-

sponding pin holes in the CB’s MIC jack.

Then push the plug into the jack.

2. Slide the microphone onto the micro-

phone holder.

To disconnect the microphone from the CB,

press the plastic tab on the side of the plug,

then pull out the plug.

Caution: Never pull on the microphone ca-

ble.

USING VEHICLE BATTERY

POWER

Follow these steps to connect the CB to vehi-

cle battery power.

1. Connect the red wire (with in-line fuse

holder) to a point in your vehicle’s fuse

block that has power only when the igni-

tion is in the ACC or ON position.

2. Connect the black wire to a metal part of

the vehicle’s frame (chassis ground).

Caution: Do not connect the black wire

to a non-metallic (plastic) part, or to any

part insulated from the vehicle’s chassis

by a non-metallic part.

USING THE CB AS A BASE

STATION

Although this CB radio is designed mainly for

mobile use, you can also use it as a base

station with an AC power source. For base

station installation, you need these items:

Tab

Red Wire to

Switched ACC

Terminal

Black Wire to

Ground

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8Installation

• a 13.8V DC power supply that supplies

at least 1.5 amps (available from

RadioShack)

Caution: Most 13.8V DC power sup-

plies plug into a standard AC outlet to

produce DC power. Before connecting

your CB to a 13.8V DC power supply,

read and follow the instructions included

with the power supply.

• base station antenna (available from

RadioShack)

• coaxial antenna cable and connector

(available from RadioShack)

Warning: Use extreme caution when you in-

stall or remove a base station CB antenna. If

the antenna starts to fall, let it go! It could

contact overhead power lines. If the antenna

touches the power line, contact with the an-

tenna, mast, cable or guy wires can cause

electrocution and death. Call the power com-

pany to remove the antenna. Do not attempt

to remove it yourself!

Follow these steps to install the CB as a

base station.

1. Mount the base station antenna as

described in its owner’s manual.

2. Connect the antenna to ANTENNA.

3. Connect the CB’s black power wire to

the negative (–) terminal on the DC

power supply.

4. Connect the CB’s red wire to the posi-

tive (+) terminal on the DC power sup-

ply.

5. Connect the DC power supply to a stan-

dard AC outlet.

Cautions:

• To comply with FCC RF exposure com-

pliance requirements, maintain a dis-

tance of at least 20 cm between this

device’s antenna and all persons.

• To prevent damage to the CB, be sure

you connect an antenna and the micro-

phone before you use the CB.

Note: Installation instructions are for satisfy-

ing FCC RF exposure compliance.

Black wire to negative termi-

nal of DC power supply.

Red wire to

positive termi-

nal of DC pow-

er supply.

Antenna wire

21-1705.fm Page 8 Thursday, September 7, 2000 10:41 AM

Operation

Before you use your CB, you should know

how to use it effectively and courteously.

“Operational Hints” on Page 10 contains in-

formation that will help you get more enjoy-

ment from your CB.

RECEIVING

TRANSMISSIONS AND

ADJUSTING SQUELCH

1. Turn SQUELCH fully counterclockwise.

2. Turn on the CB by turning VOLUME

clockwise until it clicks. The channel dis-

play lights and the channel number

appears.

3. Set OUT CH9 CH19 to OUT, press

or on the base to select

the desired channel (other than an

emergency channel). The green RX

indicator lights when the CB is receiving

transmissions.

4. Adjust VOLUME to the desired listening

level.

5. To cut out background noise between

transmissions, wait until there is no sig-

nal, then slowly turn SQUELCH clock-

wise until the background noise stops

and the RX indicator turns off.

Note: To receive very weak signals, turn

SQUELCH counterclockwise. You hear

noise between transmissions, but you

also hear weak transmissions.

6. To turn off the CB, turn VOLUME coun-

terclockwise until you hear it click. The

channel display turns off.

TRANSMITTING

Note: We recommend you try receiving be-

fore you transmit.

1. Follow Steps 1–5 in “Receiving Trans-

missions and Adjusting Squelch”.

2. To transmit, press PUSH TO TALK on

the microphone. The red TX indicator

lights. Hold the microphone 2–3 inches

from your mouth and speak in a normal

tone of voice.

3. To turn off the CB, turn VOLUME coun-

terclockwise until you hear it click. The

channel display turns off.

SELECTING AN

EMERGENCY CHANNEL

Important: Channel 9 and channel 19 are

reserved for motorist assistance and for re-

porting emergency information about acci-

dents, hazardous road conditions, and so on.

Always give emergency messages priority.

MIC Jack VOLUME SQUELCH

RX and TX Indicators

PUSH TO TALK

21-1705.fm Page 9 Thursday, September 7, 2000 10:41 AM

10 Operational Hints

To select an emergency channel (channel 9

or 19), set OUT CH9 CH19 to CH9 or CH19.

The selected channel number flashes.

To switch back to a non-emergency channel,

set OUT CH9 CH19 to OUT. The previously se-

lected channel number appears.

Operational Hints

Like most activities, CB radio has its customs

and courtesies. The following tips will help

you get the most enjoyment from your CB.

COMMON USES FOR A CB

Personal Uses

• Keep in touch with home while driving to

work, to the store, or to a social activity.

Let your family know you are tied up in

traffic, or that you will stop by the store

on the way home.

• If you are a two-car (or more) family, CB

radios are great for communicating with

family members while they are in their

cars.

• Contact friends or neighbors — find out

“what’s happening” or plan a get-

together.

• Ever have car trouble or run out of gas

on the highway? What an assurance it is

to be able to radio for assistance!

• Camping, fishing, and other sports are

more fun with a CB radio. Locate a

buddy or find out “what’s cooking” back

at camp.

Business Uses

• For security officers, a CB is more than

a convenience — it is a must for both

safety and efficiency.

• Truck drivers and delivery personnel can

learn road and traffic conditions and get

assistance in locating destinations. A

CB radio is also good company on those

“long hauls.”

• On construction crews, a CB radio

quickly pays for itself when you are call-

ing for additional materials or coordinat-

ing the activities of different work crews.

TRANSMISSION COURTESY

Please follow these guidelines of radio cour-

tesy when using your CB.

• Wait for a pause in someone else’s

transmission before you ask for a break.

• If you do not receive an answer to your

call after a second attempt, sign off and

wait several minutes before trying again.

• Do not hold down PUSH TO TALK when

you are not talking. (This is called

dead

keying

• Assist callers with directions, information

about road conditions, and any other

reasonable requests.

USING COMMON 10-CODES

Citizen’s band operators and CB radio users

have largely adopted the 10-codes for stan-

dard questions and answers. These codes

permit faster communication and better intel-

ligibility in noisy areas.

21-1705.fm Page 10 Thursday, September 7, 2000 10:41 AM

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