Radio Shack BTX-128 User Manual

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UHF Business Band Transceiver

with CTCSS

Please read before using this equipment.

Owner’s Manual

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ˆ Contents


FCC Regulations ................................


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


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


A Quick Look at


Your Transceiver ..............................


Preparation .......................................


Installing the Battery Pack .............


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


Connecting the Antenna ................


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


Connecting an Earphone/


External Speaker ...........................


Using an External Speaker/


Microphone ....................................


Setting Frequency Options ............


©2000 RadioShack Corporation. All Rights Reserved. RadioShack and are trademarks

used by RadioShack Corporation.



















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Setting a UHF Business Band


Frequency .....................................


About Quiet Tone ...........................


Operation ..........................................


Care ...................................................


Specifications ..................................


ˆ Features

Your RadioShack 2-Channel1-WattUHF Business Band Transceiver is a portable,two-waybusiness radio service transceiver that you can carry almost anywhere. The transceiver is compact and light, making it an ideal choice for your business needs.

Programmable Frequencies — an authorized service facility can program the



















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transceiver to any UHF business band frequency you have a license to use – no crystals to buy!

Note: Your local RadioShack store must send the transceiver to an authorized service facility to program the transceiver with a frequency. You must show your license to store personnel.

38 Quiet Tone CTCSS (Continuous Tone Control Squelch System) — helps reduce interference from other transceivers which are operating on the same frequency, in the same area.

PLL-ControlledCircuitry— provides accurate and stable channel selection.

TX/BATT Indicator — flashes green while the transceiver is turned on, lights green while transmitting, and turns red when battery is low.



















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ˆ FCC Regulations


This transceiver is intended for use in the operation of commercial activities, educational, philanthropic, or ecclesiastical institutions, and hospitals, clinics, or medical associations.

The Federal Communications Commission(FCC) requires you to have a license before you operate this transceiver. Unless you are already licensed to operate on one of the preset frequencies, you must apply for a frequency through the PCIA (Personal Communication Industry Association), a non-profit organization that assigns frequencies nationwide to help prevent conflicts between different businesses using transceivers in the

FCC Regulations





















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same area. For more information about getting a license, contact the PCIA at 800-759-0300,extension 3068 (in Virginia703-739-0300,extension 3068).

For other questions concerning the license application, contact the FCC at 717-337-1212,or write:


P.O. Box 1040

Gettysburg, PA 17325

For the latest FCC application form and instructions, call the FCC's fax-on-demand service at1-202-418-0177from a fax machine and request one or more of the following documents:





To receive:































All forms and instructions
































FCC Regulations









































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To receive:






Form 600 instructions only




Main Form 600 only




Form 600 schedules only




If you do not have a fax machine, you can call the Government Forms Distribution Center at 1-800-418-FORMand request that the form and instructions be mailed to you.


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.

FCC Regulations





















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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 authority.

You can let unlicensed persons operate this transmitter, as long as you take precautions to prevent unauthorized transmissions.

You must use this transceiver only for the commercial use of your business, and only when other commercial channels (such as the telephone) are either not available or not practical.


FCC Regulations



















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You must always yield the operating frequency to communications that involve the safety of life or property.

You must take reasonable precautions to prevent harmful interference to other services operating on the same frequency.

You must not transmit program material of any kind used in connection 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 earthquake, hurricane, flood or a similar disaster where normal communication channels are disrupted.

FCC Regulations





















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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 equipment might cause TV or radio interference even when it is operating properly. To eliminate interference, you can try one or more of the following corrective measures:


FCC Regulations



















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reorient or relocate the receiving antenna

increase the distance between the equipment and the radio or TV

use outlets on different electrical circuits for the equipment and the radio or TV

Consult your local RadioShack store if the problem still exists.

You must use shielded interface cables with this equipment.

Additional FCC Regulations

The Business Radio Service is under the jurisdiction of the Federal Communications Commission (FCC). Any adjustments or alterations that would alter the

FCC Regulations





















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performance of the transceiver so it no longer meets the original FCC type acceptance or would change the frequencydetermining method are strictly prohibited.

Replacement or substitution of crystals, transistors, integrated circuits, regulator diodes, or any other component that is of a unique nature with components other than those recommended can violate the technical regulations of the FCC Rules or violate type acceptance requirement of the rules.

Before you operate the transceiver, you must obtain your license. It is illegal to transmit without the appropriate license, which you can get by submitting a completed FCC Form 600 to the FCC (or through the PCIA). Furthermore, you are required to understand Part 90 of the


FCC Regulations



















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FCC Rules prior to operating your transceiver. It is the user's responsibility to see that this unit is operating at all times in accordance with theFCC Rules.

ˆ A Quick Look at

Your Transceiver







A Quick Look at Your Transceiver





















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ˆ Preparation


The supplied Ni-MHbattery pack, when fully charged, provides power to your transceiver for up to 10 hours. You must install the battery pack into your transceiver, then charge it.

Caution: Do not remove the plastic wrap from the battery pack. Doing so can permanently damage the battery.

1. Slide LOCK on the battery compartment cover to the right to

unlock it, then slide LOCK the battery compart-


















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ment cover in the direction of the arrows and lift it off.

2.Plug the battery pack’s connector into the connector inside the battery compartment. Then place the battery pack in the compartment.

Note: The connector fits only one way. Do not force it.

3.Replace the battery compartment cover, then slide LOCK to the left to lock the cover.


Before you use the battery pack for the first time, you must use the supplied battery charger to charge it for about 14 hours. You cannot use the transceiver while you charge the battery pack.



















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To ensure maximum range, operate the transceiver with the battery pack fully charged. As the voltage decreases, the range decreases.

Caution: The supplied 12V DC, 200 mA battery charger was designed specifically for your transceiver. Use only the supplied battery charger.

1.Turn VOLUME/OFF fully counterclockwise until it clicks to turn off the transceiver.

2.Pull out the rubber cover on the DC 12V jack on the lower side of the transceiver and insert the charger’s barrel plug into the jack. Then plug the other end of the charger into a standard AC outlet.

If TX/BATT lights red and flashes green when the transceiver is on, the transceiver has about 60 minutes of


















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battery power remaining. Recharge the battery pack.

3.Unplug the AC adapter from the AC outlet after the battery is fully charged.

Caution: Although the battery pack is designed to be charged using the supplied battery charger for up to a year, do not charge the battery pack longer than 24 hours at a time.



1.Align the slots around the antenna’s connector with the tabs on the antenna jack on the top of the transceiver.



















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2.Press the antenna down over the jack and turn the antenna’s base clockwise until it locks into place.

3.To detach the antenna, turn the antenna’s base counterclockwise. Then lift off the antenna.

Connecting an Optional


Although the supplied rubber duck antenna provides excellent local reception, you can connect an optional external mobile antenna or outdoor base station antenna to your transceiver for better reception of weak signals. The antenna jack on the top of the transceiver makes it easy to use the transceiver with a variety of antennas. Your local RadioShack store sells a variety of antennas.


















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The supplied belt clip lets you easily attach the transceiver to your belt.

Slide the belt clip onto the tab at the back of the transceiver until it clicks. To remove the clip, pull up on its middle tab and slide it down.




To listen privately or to hear better in a large area such as a warehouse, you can pull up the rubber cover on the EAR andMIC jacks, then plug a monaural earphone or an external speaker with a 3.5 mm (1/8 inch) plug (not supplied) into theEAR jack on the side of the transceiver.



















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This automatically disconnects the builtin speaker.

Listening Safely

To protect your hearing, follow these guidelines when you use an earphone.

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-volumelistening 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 dis-