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PRO

310e

Portable/

MobileCB radio

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INTRODUCTION

Welcome to the world of sophisticated, microprocessor controlled CB radio communications. YourUniden PRO 3 1De represents the most advanced portable/mobile radio ever designed for use in the Citizens

Band Radio Service. It will operate on any of the 4D AM frequencies authorized by the Department of Communications. Your

PRO 31 De features a superheterodyne circuit with PHASELOCKLOOPtechniques to assure precise frequency control. It can be powered by your vehicle battery or with the snap-on battery pack (batteries not included). This radio has been type acccepted

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WARNING

Before transmitting with your transceiver, you must obtain a Department of Communications (D.O.C) Citizens Radio Licence.

Obtain an application form, from the

D.O.C Before completing the form you should read the conditions governing the licensing and operation of the CR.S.

(D.O.C brochure RB 14). This brochure also can be obtained from the D.O.C After completing the application form, mail it with the appropriate fee to the Superintendant Regulatory of Licensing in the

State or territory in which the station will be operated.

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IN STAI.LATI ON

MOBILE INSTALLATION

Plan the location of the radio and microphone bracket before starting installation.

Select a location that is convenient for operation and does not interfere with the driver or passenger in the vehicle. The mic hanger bracket should be securely fastened to a solid surface using the selftapping screws which are provided. The button on the back of the radio will slide into the mic hanger to hold it securely in place.

Mobile Antenna local dealer is qualified to assist you in the selection an installation of a proper antenna

Connecting to requirements.

meet your the Power application:

Connect the power cord to the jack on the bottom of the unit (battery pack must be removed). Plug the cord into the cigarette lighter of your vehicle. The PRO 31 Oe may

I also be connected directly to the fuse block with the proper wiring (not] included).

IMPORTANT - The cigarette lighter plug is designed to be used with negative ground vehicles. Do not attempt to operate the unit with the power cord connected to a positive ground vehicle.

Since the maximum allowable power output of the transceiver is limited by the

D.O.C, the antenna isa very important factor affecting transmission distance. The magnetic mount base and screw-in telescopic antenna will provide maximum range when properly installed.

Screw the antenna into the base. Place the base on a flat metallic area of your vehicle roof. The center of the roof is ideal for 3600 transmission. Feed the coaxial cable thru a window or door. With the battery pack off, connect the antenna to the bottom of the unit.

Ground Information

Most newer cars and small trucks use a negative ground system, while some older cars and some newer, larger trucks may use a positive ground system. A negative ground system is generally identified by the I

"-" battery terminal being connected to the vehicle motor block. Ifyou cannot determine the polarity ofyour vehicle, consult your vehicle dealer for information.

If another external antenna is desired consult your local CB Dealer for a compatible model. You have purchased a superior quality transceiver. Don't diminish its performance antenna.

by installing an inferior

Only a properly matched antenna system will allow maximum power transfer from the 50-ohm transmission line to the radiating element.

We recommend that you have your system checked with an SWR meter when installing your antenna. Your

Positive Ground System

If you are operating on a positive ground system, the unit must be wired directly to the fuse block. Connect the black lead from the radio to the negative" -" battery terminal or other convenient point and connect the red power lead to the chassis or vehicle frame, or the positive

" + " terminal of the battery.

Cord Holder

Install the cord holder with ANT. label on right-hand side and PWR. label on left-hand side as shown.

Match key (AJ with notch (BJ as illustrated.

While pressing the cord-holder's upper and lower sides, insert the cord holder securely into the grooves at the bottom of your PRO 31 De. Cord holder will snap into place when pressure is released.

PORTABLE USE

The PRO 31 De can operate under its own battery power.

The snap-on battery pack included with your unit makes it a true Emergency CB. It also makes a great portable CB for long range communications outdoors.

Installing the Batteries and Battery Pack

Hold the battery pack in one hand and press on the top of the pack where indicated.

The battery holder will slide out.

Install 8 "AA" size nonrechargeable batteries.

Slide the battery holder back into the battery pack until it is flush with the bottom.

Slide the battery pack onto the bottom of the radio from left to right until it snaps in place. Make sure the slots on the battery pack and the radio fit correctly.

NOTE: When the batteries become weak the battery LED will light. Be sure to replace the batteries as soon as possible.

You can preseNe battery power by selecting the LOW position on HI/LOW switch.

The LOW setting has substantially shorter transmission range.

Connecting the Antenna

For portable use the telescopic antenna will give good results. Simply unscrew it from the magnetic mount base and screw it into the antenna connector Gn the top of the unit. Fully extend the antenna for maximum range.

HI/LOW Switch

The PRO 31 De has a transmission power selector switch - HI/LOW. In the HI position the unit will transmit at the higher output power and achieve longer range.

In the LOW position the transmission output power (range) is substantially reduced; however, the battery life will be increased. For longer range select the HI position. For maximum battery life select the LOW position.

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CONTROLS

AND

FUNCTIONS

,. Instant CH 9 - Select CH 9 position to instantly select the Emergency channel.

Switch back to return to normal 40 channel operation.

2. TX Indicator - An LEDlights to indicate when the radio is transmitting.

3. Battery Low LED - Lights when the batteries in the snap-on battery pack need to be replaced.

4. Built-in Mic - A professional quality microphone built into the unit. The push to talk switch is conveniently located on the side of the unit.

5. Channel Display - A large LEDdisplay shows the channel currently in use.

6. Channel Selector - Up and Down electronic channel keys makes it easy to select any of the forty channels.

Press once to change one channel.

Press and hold to rapidly change channels.

7. IMPORTANT - All channels except channel 9, may be used for normal communications. Channel 9 has been

reseNed by the D.O.C for emergency communications involving the immediate safety of individuals or the protection of property. Channel 9 mayalso be used to render assistance to a motorist. This is a D.O.C rule and applies to all operators of CB radios.

8. Squelch Control - The Squelch control is used to eliminate background noise during the absence of a transmission. Turn the control fully counter clockwise, then slowly rotate it back, clockwise until all noise disappears. At this setting any transmission must be slightly stronger than the background noise to "Break Squelch" and to be

I heard. Further clockwise rotation will

I increase the threshold at which a signal will be heard. You can select any level to "Break Squelch".

9. Volume with Power On/Off

Control - Turn the unit on and adjust the volume.

'0. HI/LOW Switch - Select the LOW position for short transmission raoge or to conseNe battery power. Select the HI position for longer rang~.

, ,. Power Cord - The power cord with cigarette lighter plug includes a fuse.

'2.

Magnetic Mount Antenna

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A telescopic magnetic mount antenna attaches to most any vehicle. The' 6' coaxial cable connects directly to the unit.

,3. Portable Antenna Connector

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This female connector permits connection of the telescopic antenna for portable use.

'4. Mobile Antenna Connector -

Connect the coaxial cable from the

I magnetic mount antenna for mobile use.

'5. Power Connector - Connect the fused cigarette lighter power cord.

16. Snap-on Battery Pack - Over

40% of vehicle trouble is related to battery failure.

The PRO 310e comes complete with a snap-on battery pack (batteries not included).

Essential equipment for every vehicle. The battery pack also allows you to take your radio anywhere you want to go providing long range communications.

'7. Cord Holder - Your PRO 3' Oe includes a special cord holder to prevent the Antenna cord and the Power cord from getting loose.

18. Protective Case - The attractive vinyl case neatly stores all components when not in use.

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OPERATION

OPERATING PROCEDURE

TO RECEIVE

OPERATING PROCEDURE

TO TRANSMIT

1. Besure that the power source, antenna and microphone connected.

are properly

2. Turn the unit on by rotating the Volume control clockwise.

3. Set the channel selector switch to the desired channel.

4. Set the Volume control to a comfortable listening level.

5. Listen to the background noise from the speaker. Turn the Squelch control clockwise until the noise disappears (no signal should be present). Leave the control at this setting. The squelch is now properly set. The receiver will remain quiet until a signal is actually received. Do not advance the control too far, or some weaker signals will not be heard.

NOTE: The PRO 31 Dehas a unique power saving feature that is particularly important when operating with the battery pack. The channel display will automatically turn off if the unit is neither transmitting nor receiving (Squelched).

Since the channel display uses a substantial amount of power this feature will effectively pro'Iong the life of your batteries.

1. Be sure the operator has read and understands D.O.C rules and regulations prior to operating the transmitter.

2. Check the HI/LOW switch for proper setting.

3. Select the desired channel for transmission.

4. Ifthe channel is clear, depress the pushto-talk switch on the side of the unit and speak into the microphone with a normal voice.

IMPORTANT NOTICE

Your portable CB radio has been designed to transmit at 4 wats output power when connected to your vehicle battery. When used with the battery pack, the transmit power may be lower.

The quality of the batteries used in the battery pack will also have an affect on the output power. For best results use the optional NiCad battery

pack -

BP31 good quality alkaline batteries.

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Channels:

Frequency Range:

Frequency Control:

Frequency Tolerance:

Operating Temp.:

Microphone:

Input Voltage:

Current Drain:

Size:

Complete Package:

Antenna Connector:

SPECIFICATIONS

40 AM

26.965 to 27.405 MHz

Phase locked loop (Pll) synthesizer

+/-0.005%

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30°C to + 50°C

B.uilt-intype: electric

12.0VDCnom.

(- ground)

TX:full mod., 1.4A

RX:with max audio output, O.5A

25/a"W x 1'/2"0 x 5'//'H

2 lb. 8 oz.

RCA Pin Jack

TRANSMITTER

Power Output:

Modulation:

Freq. Response:

Output Impedance:

Selectable HI or lOW

Class B amplitude modulation

300

3000 Hz

50 ohms, unbalanced

RECEIVER

Sensitivity:

Selectivity:

Image Rejection:

LF.Frequency:

Automatic Gain Control

Squelch:

Audio Output Power:

Freq. Response:

Distortion:

Internal Speaker:

0.7 itV for 10dB; (S + NJ/N typical

6dB @ 7KHz, 70dB @ 10KHztypical

75dB typical

Double Conversion Superheterodyne

1st 10.695 MHz

2nd 455 KHz

(AGC):less than 10dB change in audio output for inputs from 10 to 50,000 microvolts

Adjustable; threshold less than 1 f.1

0.5 watts max. into 8 ohms

300 to 2500 Ht less than 10% at 0.4 watts, 1000Hz

16 ohms, 0.4 watts round

SERVICING YOUR CB

Technicalinformation, diagrams and charts will be provided upon request. It is the user's responsibility to see that this radio is operating at all times in accordance with the D.O.C Citizens Band Radio SeNice regulations. We highly recommend that you consult a qualified radiotelephone technician for service and alignment of this radio. When ordering .parts, it is important to specify the correct model number and serial number of this radio.

Please refer to the WARNING information on the first page of this manual.

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TROUBLE SHOOTING

If your PRO 3 JDe is not performing up to your expectations, please try these simple steps. If you still cannot get satisfactory

results after reading this manual and fol-

lowing the troubleshooting steps, please call your local dealer.

TROUBLE

Unit will not turn on.

No power

If you determine that service is necessary contact your local dealer or pack the unit in its original carton. Send it along with a brief, concise description of the problem, your name, address, phone number, and a copy of the original purchase receipt to the address listed in the warranty.

CHECK

J. Check po'Ner cord and all connections~

2. Check power cord fuse.

3. Check vehicle electrical system.

4. Check battery pack connection.

5. Check if batteries are weak.

Poor reception

Weak transmission

J. Check and adjust Squelch.

2. Check antenna system and

, cable, connectors.

3. Make sure antenna is fully extended.

4. Check operation mode of the radio.

J. Check antenna system and

cable, connectors.

2. Make sure antenna is fully extended.

3. Check antenna grounding.

4. Check for corrosion on connectors.

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WARRANTY

TWO YEAR LIMITED WARRANTY

WARRANTOR.

Princes

"'UNIDEN"j.

UNIDEN AUSTRALIA PTY. LTD. 345

Highway, Rockdale, NSW.

2216

ELEMENTS OF WARRANTY. UNIDEN warrants, for the duration of this warranty, its UNIDEN CB Product to be free from defects in materials and craftsmanship with only the limitation or exclusions set out below.

WARRANTY DURATION. This Warranty shall terminate and be of no further effect Two 12) years after the date of original purchase of the Product or at the time the Product is la) damaged or not maintained as reasonable and necessary, Ib) modified, Ic) improperly instaUed, Id) is repaired"by someone other Warrantor for a defect or malfunction covered by this Warranty, or le) used in a manner or purpose for which the Product was not intented.

PARTS COVERED. This Warranty covers all components of the Products.

STATEMENT OF REMEDY. In the event that the

Product does not conform to this Warranty at any time while this Warranty is effective, Warrantor will repair the defect and return it to you prepaid, without change for parts, service, or any other costs incurred by

Warrantor or its representatives in connection with the performance of this Warranty.

In addition, if the

Product contains a defect or malfunction which is not repaired after a reasonable number of attempts by

Warrantor to repair the Product, the Product or defective component will at our discretion, be replaced without charge, when the defective product is delivered to the warrantor at 345 Princes Highway,

Rockdale, N.S.W. 2216 free and clear of all liens and encumbrances.

Please note that while the Product will be remedied under this Warranty without charge. THIS

WARRANTY DOES NOT COVER OR PROVIDE FOR

THE REIMBURSEMENT OR PAYMENT OF INCIDEN-

TAL OR CONSEQUENTIAL DAMAGES.

PROCEDURE FOR OBTAINING PERFORMANCE

OF WARRANTY. In the event that the Product does not conform to this Warranty, the Product should be shipped prepaid, to Warrantor at 345 Princes Highway, Rockdale, N.S.W. 2216.

THE ORIGINAL OR

COPY OF THE SALES RECEIPT OR OTHER VALID

EVIDENCE OF THE DATE OF THE ORIGINAL PUR-

CHASE MUST ACCOMPANY THIS PRODUCT.

UTUAOI 311 CA(SK)

uniden8

Australia Pry. Ltd.

HEAD OFFICE:

BRISBANE

345 Princes Highway, Rockdale, N.S.W. 2216

Phone: 599 3355

Fax: 102) 599 7657

3/12 Randall Street,

Slacks Creek,

Old. 4127

Phone (07) 290-1188

Fax 107) 808 4251

MELBOURNE & TASMANIA

446-448 Bell Street,

East Preswn,

VIe. 3072

PERTH

23 Geddes Street

Balcatta,

WA. 6021

Phone (09) 344 3937

Fax (09) 349 8165

ADELAIDE

72- 74 Halifax Street,

Adelaide

SA. 5000

Phone (03) 484 0373

Fax 103) 4846057

Phone 108) 223-4235

Fax (08) 223 1471

Printed in the Philippines r

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