Uniden Pro520E Users Manual

PRO520E to the manual a5d83eb4-ded3-0c44-0994-deb9156fda8d

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PRO520e

Professional

MobileCB radio

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INTRODUCTION

Welcome to the world of sophisticated,

state-of-the-art CB radio communic-

ations. YourUnidenPRO520e represents

the most advanced mobile radio ever de-

signed for use in the Citizens Band Radio

Service. It willoperateonany of the40AM

WARNING

Before transmitting with your transceiver,

you mustobtainaDepartmentof Commu-

nications (D.O.C.)CitizensRadioLicence.

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 C.R.S.

frequenciesauthorizedby theDepartment

of Communications. YourPRO 520e fea-

tures asuperheterodyne circuit with

PHASELOCKEDLOOP techniques to as-

sure precise frequency control.

(D.O.C.brochure RB 249). Thisbrochure

alsocan be obtained fromthe D.O.C.After

completing the application form, mail it

with the appropriate fee to the Superin-

tendant Regulatory of Licensing in the

Stateor territoryin which thestation willbe

operated.

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CONTROLS DFUNCTIONS

,. ANL Switch - You can select the

Automatic Noise limiter to help re-

duce harsh background noise caused

by a variety of interferencesources.

2. Instant CH 9 Switch - Use this

switch to override the main channel

selector and instantly tune to the

emergency channel 9. Switch back

to return to normal 40 channel

operation.

3. TX LED - An LED lights to indicate

when the radio is transmitting.

4. Microphone - The operational

mode of the CB is controlled by the

push-to-talk switch on the mic. Press

the switch to activate the transmitter

and disable the receiver. Release the

switch to enable the receiver and dis-

able the transmitter. Wh~n transmit-

ting, hold the micabout 2 inches from

your mouth and speak clearly in a

normal voice. The mic included with

the PRO 520e is a detachable ele-

ctret type.

5. S/RF Meter - This LEDmeter shows

the relative strength of the received

signal or the RF output.

6. Channel Indicator - Displays the

channel currently in use.

7. Channel Selector - This switch

selects the desired channel for trans-

mission and reception. All channels,

except channel 9, may be used for

communications between stations

operating under different license.

Channel 9 has been reserved by the

D.OC. foremergency communications

involving the immediate safety of in-

dividuals or the immediate protection

of property. Channel 9 also may be

used to render assistance to a motor-

ist. This is aD.O.C.rule and applies to

all operators of CB radios.

8. RF Gain - This control is used to ad-

just signal reception in areas where

strong signals are present. Turn the

control fully clockwise for maximum

reception.

9. Squelch - The Squelch control is

used to eliminate background noise

during the absence of a transmission.

Turn the control fully counter clock-

wise, then slowly rotate it back, clock-

wise until all noise disappears. At this

setting any transmission must be

slightly stronger than the background

noise to "Break Squelch" or to be

heard. Further clockwise rotation will

increase the threshold at which a sig-

nal will be heard. You can select any

level to "Break Squelch".

'0. Volume Control - Rotate clockwise

to turn radio on and to increase

volume.

, ,. PA Switch - Select the PublicAd-

dress mode when an external PA

speaker is connected. When the PA

mode is selected, the CB radio will be

disabled. Adjust the PA output level

by rotating the volume control.

Antenna Connector - This female con-

nector permits connection of the trans-

mission line cable male connector (PL-259)

to the transceiver.

Public Address - An external 8 ohm

7-watt speaker must be connected to the

"PA SP" jack located on the back of the

unit. The speaker must be directed away

from the mic to prevent feedback.

External Speaker - The external

speaker jack is used for remote receiver

monitoring. The external speaker should

Ihave an 8 ohm impedance and be rated at

least 7 watts. When.;tn external speaker is

connected, the inre,[nal speaker is

disabled.

OPERATION

,""

Operating Procedure to Receive

I

,. Besure that the power source, antenna

and microphone are properly

Iconnected.

I 2. Turnthe unit on by rotating the volume

control clockwise.

3. Set the channel selector switch to the

desired channel.

I4. 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 re-

main quiet until a signal is actually

received. Do not advance the control

too far, or some weaker signals will not

be heard.

: Operating Procedure to D'ansmit

1. Be sure the operator has read and un-

derstands D.O. C. rules and regulations

prior to operating the transmitter.

2. Select the desired channel for

transmission.

3. Ifthe channel is clear, depress the push-

to-talk svlitch on the side of the micro-

phone and speak in a normal voice.

CAUTION: The transceiver Voltage

Standing Wave Ratio (VS.W.R.)measure-

ment must be performed prior to the use

of the transmitter. A "VS.WR." ratio in ex-

cess of 2:' may damage the transmitter.

Please check your SWRreading frequently

by using an SWRmeter.

Preventative Maintenance

At six to twelve month intervals, the fol-

lowing system checks should be made:

,. Check the Voltage Standing Wave

Ratio (VS.WR.)

2. Inspect all electrical connections.

3. Inspect antenna coaxial cable for wear.

4. Inspect all screws and other mounting

hardware.

SPECIFICATIONS

Channels:

Frequency Range:

Frequency Control:

Frequency Tolerance:

Operating Temp.:

Microphone:

Input Voltage:

Current Drain:

Size:

Weight:

Antenna Connector:

LEDMeter:

TRANSMITTER

Power Output:

Modulation:

Freq. Response:

Output Impedance:

RECEIVER

40 AM

26.965 to 27.405 MHz

Phase Locked Loop (PLL}synthesizer

+0.005%

- 30°C to + 50°C

Plug in DIN type: Electret

13.8 VDC nom. (+ or - ground}

TX:full mod., 1.7A

RX.:with max audio output, 1.7A

4 '/l' W x 6 3/4"0 x 1 3/8"H

1 lb. 10 oz.

UHF,SO-239

Indicates relative RFoutput and received signal

strength

4 watts

A3E (Amplitude Modulation)

300 - 2500 Hz

50 ohms, unbalanced

0.5 ~V for 10dB; (S + N}/N typical (limit: 1.0 ~V}

6dB@ 7KHz, 70dB @ 10KHztypical

80 dB typical

Double Conversion Superheterodyne

1st 10.692 MHz

2nd 450 KHz

Adjustable for optimum reception

(AGC}:less than 10dBchange in audio output for inputs

from 10 to 50,000 microvolts

Squelch: Adjustable; threshold less than 1 ~V

Audio Output Power: 7 watts max. into 8 ohms

Freq. Response: 300 to 2000 Hz

Distortion: less than 10% at 4 watts, 1000Hz

Internal Speaker: 16 ohms, 3watts round

External Speaker: (not supplied} 8 ohms

PASystem: 7 watts in external 8 ohm speaker

Specifications and features are subject to change without notice.

Sensitivity:

Selectivity:

Image Rejection:

I.F.Frequency:

RF Gain Control:

Automatic Gain Control:

~

~

"TROUBLE SHOOTING

CHECK

1. Check power cord and all connections.

2. Check power cord fuse.

3. Check vehicle electrical system.

1. Check and adjust Squelch.

2. Check antenna system, cable, and connectors.

3. Check operation mode of the radio.

1. Check antenna system, cable, and connectors.

2. Check antenna grounding.

3. Check for corrosion on connectors.

If your PRO 520e is not performing up to

your expectations, please try the following

troubleshooting steps after reading this

manual.

If you determine that service is necessary,

TROUBLE

Unit will not turn on.

No power

Poor reception

Weak transmission

contact your local dealer or pack the unit in

its original carton and 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.

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 Radio Service regu-

lations. We highly recommend that you

.~ q:::

consult a qualified radiotelephone tech-

nician 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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INSTALtATI ON

",V,; I

Plan the location of the radio and micro-

phone bracket before starting installation.

Selecta locationthat is convenient forop-

eration and does not interfere with the

driver or passenger in the vehicle. The

radio should be securely fastened to a

solid surface using the mounting bracket

and self-tapping screws which are

provided.

Mobile Antenna

Since the maximum allowable power out-

put of the transceiver is limited by the

OD.C., thecmtenna is a very important fac-

tor affecting transmission distance. It is for

this reason that we strongly recommend

that you install only a quality antenna in

your new CB radio system. Youhave pur-

chased a superior quality transceiver.

Don't diminish its performance by in-

stalling an inferior antenna.

Only a properly matched antenna system

will allow maximum power transfer from

the 50-ohm transmission line to the radiat-

ing element. We recommend that you use

an SWR meter when installing your an-

tenna. Set your PRO S20e to channel 20

and make adjustments to the antenna un-

tilthe meter reads as close to 1as possible.

Your Uniden dealer is qualified to assist

you in the selection of the proper antenna

to meet your application requirements.

For automobile installation, the whip

antenna may be used with good effect.

The most efficient and practical installa-

tion is a fullquarter wave whip antenna

mounted on the rear deck or,fender top,

midway between the rear window and

bumper.

A short "loaded" whip antenna is more

convenient to installon your automobile,

although the efficiency is less than a full

quarter wave whip antenna.

For marine installation, consult your dealer

for information regarding an adequate

grounding system and prevention of elec-

trolysis between fittings on the hull and

water.

Connecting the Power Cord

With regard to the connection of the

power cords, it may be possible or de-

sirable to connect the red lead (for nega'-

tive ground systems) or the black lead (for

positive ground systems) to the ignition

switch accessory terminal so that the radio

is automatically turned off when the ig-

nition switch (key) is turned off.

Alternately, the power lead may be con-

nected to an available terminal on the fuse

block or even to a point in the wiring

harness. Care must be taken, however, to

guard against a short circuit condition.

When in doubt, please contact your ve-

hicle dealer for specific information about

your vehicle.

Ground Information

Mostnewer carsandsmalltrucksuseane-

gative ground system, while some older

cars and some newer larger trucks may

use apositive ground system. A negative

ground system is generally identified by

the "-" battery terminal being connected

to the vehicle motor block, but if you can-

not determine the polarity of your vehicle,

consultyour vehicledealer forinformation.

NOTE: This radio may be installed and

used in any 12~voltDC negative or posi-

tive ground system.

Negative Ground System

Ifyou are operating on a negative ground

system, connect the red DC power cord

from the radio to the positive" + " battery

terminal or other convenient point and

connect the black power lead,to the chas-

sis or vehicle frame, or the negative" - "

terminal of the battery.

Positive Ground System

Ifyou are operating on a positive ground

system, connect the black DC power cord

from the radio to the negative" -" bat-

tery terminal or other convenient point

and connect the red power lead to the

chassis or vehicle frame, or the positive

" + " terminal of the battery.

WARRANTY

TWO YEAR LIMITED WARRANTY

WARRANTOR.UN/DENAUSTRALIA PTY. LTD. 345

Princes Highway, Rockdale, N.S. W 2216 ("UNIDEN").

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 DURA TION. This Warranty shall termin-

ate and be of no further effect Two (2) years after the

date of original purchase of the Product or at the time

the Product is (a) damaged or not maintained as rea-

sonable and necessary, (b) modified, (c) improperly

installed, (d) is repaired by someone other Warrantor

for a defect or malfunction covered by this Warranty,

or (e) used in a manner or purpose for which the Pro-

duct was not intended.

PARTS COVERED. This Warranty covers all compo-

nents of the Products.

STA TEMENT OF REMEDY. In the event that the Pro-

duct 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 charge

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 defec-

tive component will at our discretion, be replaced

without charge, when the defective product is deliv-'

ered to the warrantor at 345 Princes Highway, Rock-

dale, N.S. W 2216 free and clear of all liens and en-

cumbrances. Please note that while the Product will

be remedied under this Warranty without charge.

THIS WARRANTY DOES NOT COVER OR PROVIDE

FOR THEREIMBURSEMENT OR PA YMENT OF INCID-

ENTAL 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 High-

way, Rockdale, N.S. W 2216. THEORIGINAL OR COpy

OF THESALES RECEIPTOR OTHER VALIDEVIDENCE

OF THE DA TE OF THE ORIGINAL PURCHASE MUST

ACCOMPANY THIS PRODUCT.

uniden@

Australia Pry. Ltd.

HEAD OFFICE:

345 Princes Highway, Rockda/e, NSW. 2216

Phone: 599 3355

Fax: /02) 599 7657

BRISBANE

3/12 Randall Street,

Slacks Creek,

Old, 4127

Phone /07) 290-1 188

Fax /07) 808 4251

MELBOURNE & TASMANIA

446-448 Bell Street,

East Preston,

VIe. 3072

Phone /03) 484-0373

Fax /03) 484 6057

UTUAO I 3 I 7CB/SK)

PERTH

23 Geddes Street,

Balcatta,

WA 6021

Phone (09) 344-3937

Fax /09) 3498165

ADELAIDE

72-74 HalifaxStreet,

Adelaide

SA 5000

Phone /08) 223-4235

Fax (08) 223 1471

@ Copyright J989 Uniden Corporation Printed in the Philippines