Radio Shack BTX-124 Bedienungsanleitung

Cat. No. 19-1205

OWNER’S MANUAL

Please read before using this equipment.

BTX-124

VHF FM Business Band Transceiver

with CTCSS

19-1205.fm Page 1 Tuesday, August 3, 1999 10:30 AM

FEATURES

Your RadioShack BTX-124 VHF FM

Business Band Transceiver with CTCSS

is a portable, two-way business radio

service transceiver that you can carry al-

most anywhere. The transceiver is com-

pact and light, making it an ideal choice

for your business needs.

Your transceiver has these features:

Pro

rammable Channels A and B —

let you operate the transceiver on two

different frequencies.

Preset Frequencies — let you quickly

begin operation on either 154.600 MHz

(Channel A, green dot) or 154.570 MHz

(Channel B, blue dot).

PLL-Controlled Circuitr

— provides

accurate and stable channel selection.

ustable Squelch — helps eliminate

noise between transmissions.

CTCSS (Continuous Tone Control

Squelch S

stem) — helps reduce inter-

ference from other systems in the area

operating on the same frequency.

Built-In Modulation Limiter Circuit —

automatically adjusts for a wide variety

of voice levels to ensure an understand-

able transmission.

h/Low Power — lets you save pow-

er by selecting a suitable transmitting

power for long or short distances.

Batter

Low and Transmit Indicator

— shows the battery pack’s condition

and lights when you transmit or receive.

Removable and Rechar

eable Bat-

ter

Pack — lets you use one battery

pack while you charge another (addi-

tional packs available).

Supplied Batter

Char

er — conve-

niently recharges your transceiver’s bat-

tery pack.

Earphone Jack and External Micro-

phone Jack — let you use an earphone

or external microphone to help ensure

understandable communications in

noisy areas.

Belt Pouch — protects your transceiver

and lets you easily carry it on your belt.

We recommend you record your trans-

ceiver’s serial number here. The num-

ber is on the back of the transceiver.

Serial Number___________________

RadioShack is a registered trademark used by Tandy Corporation.

19-1205.fm Page 2 Tuesday, August 3, 1999 10:30 AM

CONTENTS

FCC Re

ulations ................................................................................................... 4

FCC License Required ..................................................................................... 4

FCC Part 90 Rules ........................................................................................... 4

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

Charging the Battery Pack ............................................................................... 6

Checking the Battery Power ...................................................................... 7

Using the Belt Clip ........................................................................................... 7

Using an Earphone .......................................................................................... 7

Connecting an Antenna ................................................................................... 8

Using an External Microphone ......................................................................... 8

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

Why Use CTCSS? ......................................................................................... 10

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

Additional FCC Re

ulations .............................................................................. 11

Maintenance ........................................................................................................ 12

Specifications ..................................................................................................... 13

19-1205.fm Page 3 Tuesday, August 3, 1999 10:30 AM

FCC REGULATIONS

FCC LICENSE REQUIRED

The Federal Communications Commis-

sion (FCC) requires you to have a li-

cense before you operate this

transceiver. Unless you qualify to oper-

ate on the supplied frequencies, you

must apply for a frequency through the

PCIA (Personal Communication Indus-

try Association), a non-profit organiza-

tion that assigns frequencies nationwide

to help prevent conflicts between differ-

ent businesses using transceivers in the

same area. For more information about

getting a license, contact the PCIA at

800-759-0300, extension 3068 (in Vir-

ginia 703-739-0300, extension 3068).

For other questions concerning the li-

cense application, contact the FCC at

717-337-1212, or write:

FCC

P.O. Box 1040

Gettysburg, PA 17325

For the latest FCC application form and

instructions, call the FCC’s fax-on-de-

mand service from a fax machine at 1-

202-418-0177 and request one or more

of the following documents:

All forms and instructions 000600

Form 600 instructions only 006001

Main Form 600 only 006002

Form 600 schedules only 006003

If you do not have a fax machine, you

can call the Government Forms Distri-

bution Center at 1-800-418-FORM and

request that the form and instructions be

mailed to you.

This transceiver is intended for use in

the operation of commercial activities,

educational, philanthropic, or ecclesias-

tical institutions, and hospitals, clinics,

or medical associations.

FCC PART 90 RULES

You must be familiar with Part 90 of

FCC Rules

before you operate your

transceiver. The operation instructions

in this manual conform to Part 90, but

do not cover all items in Part 90.

Overall, Part 90 states that:

• You must have a valid license

before you use the transceiver.

• As licensee, you are responsible for

proper operation of all transceivers

operating under your license author-

ity.

• You can let unlicensed persons

operate this transmitter, as long as

you take precautions to prevent

unauthorized transmissions.

19-1205.fm Page 4 Tuesday, August 3, 1999 10:30 AM

• You must use this transceiver only

for the commercial use of your busi-

ness, and only when other commer-

cial channels (such as the

telephone) are either not available

or not practical.

• You must always yield the operating

frequency to communications that

involve the safety of life or property.

• You must take reasonable precau-

tions to prevent harmful interference

to other services operating on the

same frequency.

• You must not transmit program

material of any kind used in connec-

tion with commercial broadcasting.

• You must not provide a service that

is normally handled by telephone or

telegraph unless such broadcasts

involve the safety of life or property

or in emergencies such as an earth-

quake, hurricane, flood or a similar

disaster where normal communica-

tion channels are disrupted.

• During each transmission or

exchange of transmissions, you

must identify your station with the

call sign issued to you by the FCC,

or once each 15 minutes during

periods of continuous operation.

• You must keep a written record of

any maintenance or modification

made to the transceiver, and you

must make this record available for

inspection upon demand by the

FCC.

Violating any of the provisions of Part 90

can result in fines and/or confiscation of

equipment.

Your transceiver might cause TV or ra-

dio interference even when it is operat-

ing properly. To determine whether your

transceiver is causing the interference,

turn off your transceiver. If the interfer-

ence goes away, your transceiver is

causing it. Try to eliminate the interfer-

ence by:

• Moving your transceiver away from

the receiver

• Contacting your local RadioShack

store for help

19-1205.fm Page 5 Tuesday, August 3, 1999 10:30 AM

PREPARATION

Before you use the transceiver, you

must be properly licensed by the FCC. If

you are licensed to use one or both of

the supplied frequencies, you can im-

mediately use the transceiver.

If you are licensed on different frequen-

cies, your local RadioShack store must

send the transceiver to an authorized

service facility to have the frequencies

programmed into the transceiver. You

must tell the store the frequency you are

licensed for and any desired CTCSS

tone (the factory preset is 100.0 Hz).

See “Why Use CTCSS?” on Page 11 for

more information about CTCSS.

CHARGING THEBATTERY

PACK

You must charge the battery pack with

the supplied battery charger before you

use it the first time, and whenever the

battery becomes low.

You can charge the battery pack with it

attached to the transceiver or removed.

To attach the battery pack, slide it onto

the transceiver. To remove the battery

pack, press down and slide RELEASE in

the direction of the arrow, then slide off

the pack.

Follow these steps to charge the battery

pack.

1. If the transceiver is on, turn VOL

counterclockwise until it clicks to

turn it off.

2. Plug the charger’s barrel plug into

the CHRG jack on the side of the

ILLUSTRATION

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battery pack, then connect the charger to a standard AC outlet.

ILLUSTRATION

19-1205.fm Page 7 Tuesday, August 3, 1999 10:30 AM

Note: Charging time is 14 to 16

hours.

Cautions:

• To prevent permanent battery power

loss, never charge the batteries in

an area where the temperature is

above about 80°F. The charger

does not operate at all at tempera-

tures below 32°F or above 113°F.

• Never use any other charger to

recharge the transceiver’s battery

pack. This could permanently dam-

age your transceiver or the battery

pack.

Important: This transceiver uses a re-

chargeable nickel-cadmium battery

pack. At the end of the battery pack’s

useful life, it must be recycled or dis-

posed of properly. Contact your local,

county, or state hazardous waste man-

agement authorities for information on

recycling or disposal programs in your

area. Some options that might be avail-

able are: municipal curbside collection,

drop-off boxes at retailers such as your

local RadioShack store, recycling collec-

tion centers, and mail-back programs.

Checking the Battery Power

1. Rotate VOL clockwise until it clicks

to turn on the transceiver.

2. Press the push-to-talk button on the

left side of the transceiver. If

BUSY•TX/LO BATT lights red, there

is sufficient battery power for trans-

mission. If the indicator lights yellow,

you need to recharge the battery

pack.

Using the Belt Clip

The supplied belt clip lets you easily clip

the transceiver to your belt. Use a small

Phillips screwdriver to secure the clip to

the transceiver’s back with the supplied

screws and washers, then attach it to

your belt.

Using an Earphone

To listen privately or to hear better in a

noisy area, you can plug a monaural

earphone into the EAR jack on the top of

the transceiver. This automatically dis-

connects the speaker.

ILLUSTRATION

19-1205.fm Page 8 Tuesday, August 3, 1999 10:30 AM

CONNECTING AN

ANTENNA

Attach the flexible antenna to the anten-

na jack on top of the transceiver. Place

the antenna connector’s slots over the

antenna jack’s tabs, squeeze the base

of the antenna, and push down and turn

the connector until the antenna locks

into place.

Instead of the supplied antenna, you

can connect an optional antenna. The

BNC antenna jack on your transceiver

makes it easy to use with a variety of

antennas, such as an external mobile

antenna or an outdoor base antenna.

Caution: Never connect an antenna

that is not specifically tuned for the

transceiver’s frequency range.

Warning: When installing or removing a

base station antenna, use extreme cau-

tion. If it starts to fall, let it go! It could

contact overhead power lines. If the an-

tenna touches the power line, contact

with the antenna, mast, cable, or guy

wires can cause electrocution and

death! Call the power company to re-

move the antenna. Do not attempt to do

so yourself.

USING AN EXTERNAL

MICROPHONE

An external microphone can make it

easier to use the transceiver when you

clip it to your belt. Plug the microphone’s

cable connector into the MIC jack on top

of the transceiver. This automatically

disconnects the transceiver’s micro-

phone.

Note: The transceiver’s push-to-talk

button still works with an external micro-

phone attached.

ILLUSTRATION

19-1205.fm Page 9 Tuesday, August 3, 1999 10:30 AM

OPERATION

1. Turn VOL clockwise to turn on the

transceiver.

2. Select Channel A or B using the

CHANNEL switch on the top of the

transceiver.

3. To conserve battery power, set

POWER

LO. If the person you

transmit to has trouble receiving

your signal, set POWER to HI.

4. To transmit, hold down push-to-talk,

then hold your transceiver about 3

inches from your mouth and speak

slowly in a normal tone of voice. The

BUSY•TX/LO BATT indicator lights

red.

5. When you finish your message,

release push-to-talk. The BUSY•TX/

LO BATT indicator lights green

when you receive a transmission.

6. Adjust VOL to a comfortable listen-

ing level.

7. If you are not using CTCSS, wait

until there is no signal on the chan-

nel, then slowly turn SQL/CTCSS

clockwise until the background

noise stops.

Note: Do not turn SQL/CTCSS too

far clockwise because you might cut

out weak signals.

If you are using CTCSS (see “Why

Use CTCSS?” on Page 11), turn

SQL/CTCSS counterclockwise until it

clicks.

8. To turn off the transceiver, turn VOL

counterclockwise.

ILLUSTRATION

19-1205.fm Page 10 Tuesday, August 3, 1999 10:30 AM

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