Uniden PRO340XL Owner's Manual

Introduction

Welcome to the world of CB radio communication. Your Uniden
represents the most advanced portable radio ever designed for use in the
Citizens Band Radio Service. This powerful unit operates on any of the 40 AM
frequencies authorized by the Federal Communications Commission (FCC).

Among its many features, the

•

Superheterodyne circuitry

•

Phase Locked Loop Synthesizer

frequency control.

• Flexible operation that allows you to power the radio with 8 AA alkaline

batteries, 10 rechargeable AA nickel-cadmium batteries (batteries not
included), or from your vehicle battery.

• Connection for an optional nickel-cadmium battery charger.

This radio has been type accepted and fully certified by the FCC.

PRO340XL

includes:

to enhance receiver quality.

techniques to assure precise

PRO340XL

WARNING

The Citizens Band (CB) Radio Service is under the jurisdiction of the
Federal Communications Commission (FCC). Any adjustments or
alterations which alter the performance of the transceiver’s original FCC
type acceptance, or change the frequency determining method, are
strictly prohibited. Replacement or substitution of crystals, transistors,
ICs regulator diodes, or any other part of a unique nature, with parts other
than those recommended by Uniden may cause violations of the technical
regulations of Part 95 of the FCC rules or violation as type acceptance
requirements of Part 2 of the rules.

Elimination Of Licensing

The Federal Communications Commission has ruled that Citizens Band Radio
Service operators are no longer required to obtain an FCC license to operate
their CB equipment. In doing so, the FCC also permits CB stations to operate
without station identification.

Elimination of individual station licenses results in no lessening of the operating
privileges or responsibilities of CB users. An operator of a CB radio station is
still required to comply with the Communications Act and with the rules of CB
Radio Service.

1

Unpacking Your CB Radio

Carefully unpack your

•

PRO340XL

• 2 Battery Spacers (For use with alkaline batteries)

• Cigarette Lighter Power Cord

• Flexible Antenna

• Belt Clip (Attached to radio)

• This Operating Guide (Read it carefully and save)

• Part 95 Subpart D (FCC Rules)

• Product Registration Card (In Operating Guide)

PRO340XL

and check the contents against this list:

Portable CB Radio

If any items are missing or damaged, contact your place of purchase
immediately.

Be sure to complete and mail in the Product Registration Card.

WARNING

Do not attempt to charge alkaline batteries in this radio. Make sure
you have installed 10 recharge able nicke l-cad miu m batt eri e s bef ore
connecting power to the charge connection.

For optimum performance, use only Alkaline AA or Nickel-Cadmium AA
batteries in this unit. See pages 5 through 7 for directions for inserting batteries.

2

Controls And Functions

TX Indicator
BATT LOW LED

Channel Display
HI/LOW Switch
ON/OFF Switch
Channel Selector
SQUELCH Control
VOLUME Control
Microphone
Speaker

— LED lights to indicate when the radio is transmitting.

— Lights when the batteries become weak and need to be

— Turns the radio on and off.

— Transforms speech into transmission signals.

— Produces audible signals from incoming transmissions.

Front View

replaced.
— A large LED display shows the current channel in use.
— Changes transmitter power from low to high.

— Selects any of the 40 CB channels.

— Adjusts the squelch level.

— Adjusts the volume level.

3

Side View

Antenna Connector —
Belt Clip —
Push-to-Talk But to n —
CHARGE Connection —

POWER Connection —

Provides a connection for the supplied flexible antenna.
Connects to belt for portability.
Switches the CB from receive to transmit mode.
Connection for a 12V DC power source to charge

nickel-cadmium batteries while installed in the radio.

Connection for a 12V DC external power source.

Connecting the Antenna

1. Align the two keys on the
connector with the key slots in the base of
the flexible antenna.

2. Push the base of the flexible antenna down
onto the antenna connector.

3. Twist the base clockwise to lock the antenna
in place.

PRO340XL

antenna

4

Power

The

PRO340XL

be supplied thro ug h 10 AA, 1 .2 volt, r echa r ge able nicke l- cadmiu m ba tt erie s; 8 AA,

1.5 volt alkaline batteries; or through the supplied cigarette lighter power cord when

connected to a ve hicle ’s 1 2 volt n egat ive gro und po wer syst em .

Installing Batteries

WARNING: Do not mix alkaline batteries with nickel-cadmium batteries.

Alkaline Batteries

Note:

is designed to operate with ma ximum 12 volt DC power. Power can

To insure circuit continuity, use the two battery spacers supplied.

1. Slide the cover off the back of the

2. Insert the battery spacers in the positions shown. They should go all the
way into the case.

PRO340XL

.

-

5

3. Insert 8 alkaline batteries into the compartment as shown.

-

Be sure to insert each battery with the proper polarity, as marked in

Note:

the battery compartment.

Follow this diagram for correct alkaline battery placement.

(2)

Battery

Spacers

4. Replace the cover.

Note:

When the batteries become weak, the BATT LOW LED will light.
Be sure to replace the batteries as soon as possible. You can
preserve battery power by selecting the “LOW” position on the
HI/LOW switch. The “LOW” setting has a substantially shorter
transmission range. (See the Operation section.)

6

(8)

1.5 V Alkaline
Batteries