Radio Shack 43-2002 Manuale utente

Cat. No. 43-2002

OWNER’S MANUAL

Please read before using this equipment.

Handsfree Headset

Amplifier

with PC Switch

43-2002.fm Page 1 Tuesday, June 29, 1999 7:16 AM

FEATURES

Your RadioShack Handsfree Headset Amplifier frees your hands to

do other things while you talk on the telephone. You can also use it

with a computer that is equipped with a sound card. The micro-

phone boom is adjustable, so you can wear the headset over either

ear.

The headset’s control unit connects directly to a standard modular

phone jack, and allows you to switch between the phone line and a

connected computer.

It also has these features:

Built-in Earpiece and Microphone Output Volume Controls —

let you adjust the volume levels you hear through the headset and

send through the microphone.

Built-in Tone Control — lets you adjust the tone level you hear

through the headset.

Microphone Muting — lets you turn the headset’s microphone off

to prevent callers from hearing a private conversation.

Adjustable Microphone Boom — lets you wear the microphone

on the right or left side.

Quick-Disconnect Plug — lets you disconnect the headset from

the phone without disconnecting the call, so you can step away

from the phone without removing the headset, then reconnect the

headset to return to the conversation.

Mono Earpiece with Soft Foam-Filled Cushion — reduces ambi-

ent sound to provide a comfortable listening experience.

Audio Output (AUX) — lets you connect the control unit to an au-

dio recorder.

RadioShack is a registered trademark used by Tandy Corporation.

43-2002.fm Page 2 Tuesday, June 29, 1999 7:16 AM

Voice Activation (VOX) — lets you set the microphone to activate

automatically when it detects a voice.

Adjustable Headband — adjusts to fit almost any head.

Lapel Clip — lets you securely anchor the headset’s cord to your

clothing to prevent the headset cord from pulling the headset.

4-Foot Cable — lets you move freely without disconnecting the

phone. If you need a longer cord, your local RadioShack store has

a wide selection of cords.

The Handsfree Headset Amplifier has been tested and found to

comply with all applicable ETL and FCC standards.

Your headset is ETL listed to UL standards and meets all applica-

ble FCC standards.

READ THIS BEFORE INSTALLATION

We have designed your control unit to conform to federal regula-

tions, and you can connect it to most telephone lines. It has a ring-

er equivalence number, or REN, of 0.5B. If you are using more

than one phone or other device on the line, add up all the RENs. If

the total is more than five, your phones might not ring. In rural ar-

eas, a total REN of three might impair ringer operation. If ringer op-

eration is impaired, remove the device from the line.

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FCC STATEMENT

This equipment complies with the limits for a Class B digital device

as specified in Part 15 of

FCC Rules

. These limits provide reason-

able protection against radio and TV interference in a residential

area. However, your equipment might cause TV or radio interfer-

ence even when it is operating properly. To determine whether

your phone is causing the interference, turn off your Handsfree

Headset Amplifier. If the interference goes away, your phone is

causing the interference. To eliminate interference, you can try one

or more of the following corrective measures:

• reorient or relocate the receiving antenna

• increase the distance between the equipment and the radio or

• use outlets on different electrical circuits for the equipment and

the radio or TV

• contacting your local RadioShack store for help

Shielded cables must be used with this unit to ensure compliance

with the Class B FCC limits.

If you cannot eliminate the interference, the FCC requires that you

stop using your Handsfree Headset Amplifier.

Changes or modifications to this product not expressly approved

by RadioShack, or operation of this product in any way other than

as detailed by the owner’s manual, could void your authority to op-

erate this product.

43-2002.fm Page 4 Tuesday, June 29, 1999 7:16 AM

PREPARATION

INSTALLING/REPLACING BATTERIES

You need two AA batteries (not supplied) to power the Handsfree

Headset Amplifier. For the longest operation and best perfor-

mance, we recommend alkaline batteries, available at your local

RadioShack store.

Cautions:

• Use only fresh batteries of the required size and recommended

type.

• Do not mix old and new batteries or different types of batteries.

•Note: To use battery power, adapter cord should not be con-

nected to the unit even if there is no AC power.

Follow these steps to install batteries.

1. Remove the screw from the bottom of the control unit, then

slide off the battery compartment door in the direction of the

arrow.

2. Put two AA batteries into the compartment as indicated by the

polarity symbols (+ and –) marked inside.

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3. Replace the battery compartment door and secure it with the

screw.

When the headset’s sound weakens or distorts, adjust EARPIECE

VOLUME. If the sound does not improve, press MUTE. If the MUTE

indicator does not light (or lights dimly), replace the batteries.

Cautions:

• Always remove old or weak batteries. Batteries can leak chem-

icals that can destroy electronic parts.

• Dispose of old batteries promptly and properly. Do not burn or

bury them.

USING AC POWER

You can power the control unit using a 6-volt, 150-mA AC adapter

and a size B Adaptaplug®(neither supplied). Both are available at

your local RadioShack store.

Cautions:

You must use a Class 2 power source that supplies a

regulated 6 volts DC and delivers at least 150 mA. Its

center tip must be set to positive and its plug must fit

the control unit's DC 6V jack. Using an adapter that does not

meet these specifications could damage the control unit or the

adapter.

• Always connect the AC adapter to the control unit before you

connect it to AC power. When you finish, disconnect the adapt-

er from AC power before you disconnect it from the control

unit.

Follow these steps to connect AC power.

1. Attach the Adaptaplug to the AC adapter with its tip set to posi-

tive.

43-2002.fm Page 6 Tuesday, June 29, 1999 7:16 AM

2. Set the adapter’s voltage switch to 6V.

3. Insert the plug into the DC 6V jack on the back of the control

unit.

4. Plug the adapter into a standard AC outlet.

MAKING THE CONNECTIONS

1. Unplug the line cord from the telephone and plug it into the

LINE jack on the back of the control unit.

LINE

Jack

TEL

Jack

DC6V

Jack

HEADSET

Jack

AUX

Jack

43-2002.fm Page 7 Tuesday, June 29, 1999 7:16 AM

2. Plug one end of the supplied coiled cord into the TEL jack on

the back of the unit and the other end into the telephone’s

base.

3. To connect a computer, plug one end of the supplied PC con-

necting cable into the PC jack on the back of the control unit,

and the two ends into the computer’s sound card (red micro-

phone pin into microphone jack and black LINE OUT pin into

LINE OUT jack).

Notes:

• If your sound card does not have a LINE OUT jack, use its

SPEAKER jack instead.

• Use another cable (not supplied) to connect the modular

telephone line jack to the computer’s modem. You can use a

duplex adapter to connect the existing line cord and the

modem line to the modular telephone line jack.

• Only sound from the sound card’s LINE OUT (or SPEAKER)

jack is amplified (and can be recorded using a connected

audio recorder).

4. To connect an audio recorder, plug one end of the supplied

audio cord into the AUX jack and the other end into the device’s

input jack.

Note: It is illegal in some states to record a conversation with-

out the consent of all parties to the conversation, including the

phone company. Check the laws in your area before using the

two-way record feature.

5. Plug the headset’s cord into the HEADSET jack on the right side

of the control unit.

ATTACHING THE HEADSET HANGER

The Handsfree Headset Amplifier includes a headset hanger that

gives you a convenient place to store the headset when you are

not using it.

43-2002.fm Page 8 Tuesday, June 29, 1999 7:16 AM

To attach the hanger, make all connections, then push its end into

the hole on the back of the control unit until it clicks.

Note: If you try to attach the hangar before all connections are

made, the hanger might interfere with plug insertion.

ADJUSTING THE HEADSET

1. Place the headset over your head with the earpiece on either

ear.

2. Adjust the headset band until it rests

with almost no pressure on your ear

and the top of your head. If the head-

set is loose, remove it and push the

band in slightly to tighten it. If it is

tight, gently pull the band out to

loosen it.

3. Hold the headset in place and adjust

the microphone boom until it is even

with your chin, with the white dot

toward your mouth. Experiment until

you find the most comfortable posi-

tion.

Note: The microphone boom swivels

on the headset. Do not bend the

microphone boom while you adjust it.

43-2002.fm Page 9 Tuesday, June 29, 1999 7:16 AM

4. Attach the lapel clip to your clothing. Leave enough slack in the

cord so you can move your head without pulling the headset.

Note: To avoid having to repeat these adjustments, when you are

not using the headset, place it on the headset hanger and wind the

cable around the hanger.

Listening Safely

To protect your hearing, follow these guidelines when you use the

headset.

• Set the volume to the lowest setting before you begin listening.

After you begin listening, adjust the volume to a comfortable

level.

• Do not listen at extremely high volume levels. Extended high-

volume listening can lead to permanent hearing loss.

• Once you set the volume, do not increase it. Over time, your

ears adapt to the volume level, so a volume level that does not

cause discomfort might still damage your hearing.

43-2002.fm Page 10 Tuesday, June 29, 1999 7:16 AM

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