Uniden PC122XL User Manual

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MANUAL

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WELCOME '

To the world of sophisticated, microprocessor controlled AM/SSB radio communications.

Your UnidOTi PCI 22XL represents orte of the most advanced mobile type radio ever

designed for use in the Citizens Band Radio Service. It will operate on any of the 40 AM

frecfuencies and Upper and Lower Side BarxJ Frequencies designated by the Department

of Transport and Communications (DOTAC). Your PC 122 XL features a frequency

synthesizing circuit with PHASE LOCK LOOP techniques to assure precise frequency

control. This radio has been type accepted and certified by the DOTAC.

WARNING

Before transmitting with your transmitter, you must obtain a Department of Transport and
Communications Citizens Band Radio Service (CBRS) License. Obtain a brochure and
a CBRS License Application form in your nearest DOTAC office. Mail the completed
application form and the appropriate fee to the Superintendent Regulatory of Licensing
in the State of Territory in which the station wiil be operated.

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 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 output of the transceiver is limited by the DOTAC,
the antenna is a very important factor affecting transmission distance. It is for this reason
that we strongly recommend that you install only a quality antenna in your new C8 racfio
system. You have purchased a superior quality transceiver. Don't diminish its perform
ance by installing an inferior antenna.
Only a properly matched antenna system will allow maximum power transfer from the 50­ohm transmission line to the radiating element. We recommend that you use an SWR : ■
meter when installing your antenna. Set your PCI 22XL to channel 20 and adjust to SWR ^

-1. Your UNIOEN 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 installation is a full quarter 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 install on 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 electrolysis between fittings on the hull and
water, *

- 1 -

CONNECTING THE POWER CORDS

With regard to the connection of the power cords, it may be possible or desirable to
connect the red lead (for negative ground systems) or the black lead (for positive
ground systems) to the ignition switch accessory terminal so that the radio is auto
matically turned off when the ignition switch (key) is turned off.

Alternately, the power lead may be connected 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 vehicle dealer for

specific information for your vehicle. ■;

GROUND INFORMATION

A negative ground system is generally identified by the " — " battery terminal being
connected to the vehicle motor block, but if you cannot determine the polarity of
your vehicle, consult your vehicle dealer for information.

NOTE: This radio may be installed and used in any 12-volt DC negative or positive

ground system.

NEGATIVE GROUND SYSTEM

If you 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 chassis or vehicle frame, or the negative " — "
terminal of the banery.

POSITIVE GROUND SYSTEM

If you are operating on a positive ground system, connect the black DC power cord
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 " -i- "
terminal of the battery.

- 2-

CONTROLS AND FUNCTIONS

®^(0) (2) ®

® ■

1. SQUELCH — The squelch control is used to eliminate background noise during
the absence of a transmission. Turn the controi fully counterclockwise, 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" or to be heard. Further clockwise rotation will increase the threshold at
which a signal will be heard. You can select any level to "Break Squelch",

2. S/RF METER — This LED meter shows the relative strength of the received signal
or transmit power.

3. CHANNEL INDICATOR — Displays the channel currently in use,

4. CHANNEL SELECTOR — Thisswitchselectsthedesiredchannelfortransmission 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 DOTAC
for emergency communications involving the immediate safety of individuals or the
immediate protection of property. This is the DOTAC rule and applies to all operators of
CB radios.

5. TX INDICATOR — An LED lights to indicate when the radio !s transmitting,

6. MICROPHONE — The operational mode of the CS is controlled by the push-to

talk switch on the microphone. Press the switch to activate the transmitter and
disable the receiver. Release the switch to enable the receiver and disable the
transmitter. When transmitting, hold the microphone about 2 inches from your
mouth and speak clearly in a normal voice. The microphone included with the

PC122XL is a detachable, low impedance, dynamic type.

7. RF GAIN — This control is used to adjust signal reception in areas where strong

signals are present. Turn the control fully clockwise for maximum reception,

8. VOLUME CONTROL — Rotate clockwise to turn radio on and to increase
volume. '

3 -

9, NB/ANL SWITCH — You can select either Noise Blanker and Automatic Noise

Limiter, only Automatic Noise limiter or all filters OFF. The NB and ANL help to

reduce harsh background noise caused by a variety of interference sources. The
ANL will not work in the USB or LSB mode.

10. PA SWITCH - Move this switch to the Public Address mode when an external PA
speaker is connected. When the PA mode is selected, you can use the PA function
and yet can monitor CB incoming signals. Adjust the PA output level by rotating
the volume control,

11. AM/SSB SELECTOR — The three position switch allows you to select AM

(standard 40 channel CB) or USB (Upper Side Band) or LSB (Lower Side Band)

operation.

12. CLARIFIER — Turn this control to achieve the best tuning of the upper or lower
side band receiving frequency.

____________

13. ANTENNA CONNECTOR — This female connector permits connection of the
transmission line cable male connector (PL-259) to the transceiver,

14. PUBLIC ADDRESS — An external 8 ohm 4-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 microphone to prevent feedback.

15. EXTERNAL SPEAKER — The external speaker jack is used for remote receiver
monitoring. The externat speaker should have an 8 ohm impedance and be rated

at least 4 watts. When an external speaker is connected, the internal speaker is
disabled.

16. POWER—This plug permits connection of the DC power to the transceiver.The
supplied DC Cord's plug is polarized which ensures that power will always be
connected and fused properly.

OPERATING PROCEDURE TO RECEIVE

1. Be sure that the power source, antenna and microphone are properly connected.

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 clock
wise until the noise disappears (no signal should be present). Leave the control at

-4 -

this setting. The squelch is now properly set. The receiver wilt remain quiet until a
signal is actually received. Do not advance the control too far, or some weaker
signals wilt not be heard.

OPERATING PROCEDURE TO TRANSMIT

1. Select the desired channel for transmission.

2. if the channel is dear, depress" the push-to-talk switch on the side of the micro
phone and speak in a normal voice.

CAUTION: The transceiver Voltage Standing Wave Ratio (V.S.W.R.) measurement
must be performed prior to the use of the transmitter, A "V.S.W.R.'' ratio in excess of
2:1 may damage the transmitter.

OPERATION OF SSB

Choose the desired side band frequency by, A; select standard channel (1 — 40), B;
select Upper or Lower side band by moving AM/SSB switch. Transmit or receive
according to previous instructions.

When receiving a side band transmission you may need to use the Clarifier control to

fine tune that frequency. Rotate the Clarifier clockwise or counterclockwise for

optimum reception.

PREVENTATIVE MAINTENANCE

At six to twelve month intervals, the following system checks should be made:

1. Check the Standing Wave Ratio (V.S.W.R.)

2. Inspect all electrical connections.

3. Inspect antenna coaxial cable for wear,

4. Inspect all screws and other mounting hardware,

TROUBLE SHOOTING

If your PC122XL is not performing up to your expectations, please try these simple steps.
If you still cannot get satisfactory results after reading this manual and following the

trouble shooting steps, you may need to have your unit serviced.

trouble

Unit will not turn on.
No power

Poor reception 1. Check and adjust Squelch.

Weak transmission

check

1. Check power cord and all connections.

2. Check power cord fuse.

3. Check vehicle electrical system.

2. Check antenna system and cable, connectors.

3. Check operation mode of the radio.

1. Check antenna system and cable, connectors,

2. Check antenna grounding.

3. Check for corrosion on connectors.

-5-

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.

SERVICING YOUR CB

It is the user's responsibility to see that this radio is operating at all times in accordance with
the DOTAC Citizens Band Radio Service regulations. We highly recommend that you consult
a qualifiad radiotelephone technician for service and alignment of this radio. When ordering
parts, it is important to spedfy the correct model number and sériai number of this radio.

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

SPECIFICATIONS

GENERAL

Chan nets ;

Frequency Range :
Frequency Control :

Frequency Tolerance
Operating Tamp.

Microphone
Input Voltage

Current Drain

Siïe

Weight
Antenna Connector

Semiconductors

LED Meter

TRANSMITTER

Power Output
Modulation
Interrnodulation

Distortion

SSB Carrier
Suppression

40 AM, 40 USB, 40 LSB

26.965 to 27.405 MHz
Phase Lock Loop (PLL)
synthesizer

0.005%

-10°C to +50“C

Plug in type; dynamic

13,3 VDC nom, (+ or -

ground)
TX: AM full mod., 2.2 A,
SSB 12 watts PEP out
put, 2 A

RX; AM & SSB with max
audio output 0.6 A
6"W X 7%"D X 2'’H
2 lb. tOoz.

UHF,SO-239
41 transistors, 7 IC, 49
diodes

Indicates relative power
output and receive signal
strength

AM maximum of 4W
SSB maximum of 12W PEP
Class B amplitude
modulation

SSB:3rd and 5th order,
better than - 2SdB, 7th
and 9th order better than

-35dB

Better than ~ 55dB

Unwanted Sideband
Freq. Response
Output Impedance
SSB Filter

RECEIVER

Sensitivity

Selectivity
Cross Modulation

image Rejection
l.F, Frequency

Automatic Gain
Control

Squelch .
Clarifier :

Audio Output Power:

Freq. Response :

Distortion ;
internal Speaker :

External Speaker :
PA System :

Better than - 50dB
300 ^ 3000 Hz
50 ohms, unbalanced

10.695 MHz, 8 pole
monolithic type 6dB @

4.2KHZ, 60dB@7.0KHz

SSB: Better than .25 uV
for lOdB; (S + N)/N @
greater than 1/2 watt of
audio output, AM; Bet
ter than .5 pV for lOdS;

(S -I- N}/N @ greater than
1/2 watt of audio output

SSB and AM; 6dB @ 4.2

KHz, 60dS @ 7.0KHZ
More than 50dB
More than 75dB

AM and SSB; 10.695

MHz

(AGO: less than lOdB
change in audio output
for inputs from 10 to
500,000 microvolts
Adjustable; threshold less
than ,5 wV
±1.5KHz
3 watts into 8 ohms

350 to 2500 Hz

Less than 10% at 3 watts

output

16 ohms, round

(not supplied) 8 ohms
3 watts in external 3 ohm
speaker

-6-

WARRANTY

Uniden PC122XL CB Rado Australian 2 Year Warranty.

(Accessories are covered for 90 Days only).

Note: Please keep your sales docket as It provides evidence of warranty,

WARRANTOR: Uniden Australia Pty. Ltd.

ELEMENTS OF WARRANTY: Uniden warrants to the original retail owner lor the duration of

I- this warranty, its PC122XLC0 Radio (hereinafter referred to as the Product), to be free from

i defects in materials and craftsmanship with only the limitations or exclusions sat out below.

WARRANTY DURATION: This warranty to the original user only shall terminate and be of no
further effect Two (2) Years after the date of original retail sale. This warranty will be deemed
invalid if the product is (A) Damaged or not maintained as reasonable and necessary, (B)
Modidfied, altered, or used as part of any conversion kits, subassemblies ,or any configuration
3 not sold by Uniden, (C) Improperly installed , (D) Repaired by someone other than an
authorised Uniden Repair Agent for a defector malfunction covered by this warranty, (E) Used
in conjunction with any equipment or parts or as part of a system not manufactured by Uniden,
(F) Installed, programmed or serviced by anyone other than an authorised Uniden Repair
Agent, (G) Where the Sériai Number label of the product has been removed or damaged

beyond recognition.
PARTS COVERED; This warranty covers for 2 years; the Transceiver and Microphone only.

All accessories, (Leads, Brackets, Clips, Screws etc), are covered for 90 days only.
STATEMENT OF REMEDY; In the event that the product does not conform to this warranty

at any time while this warranty is in effect, the warrantor will at its discretion, repair the defect

or replace the product arxJ return it to you without chrgefor parts or service. THIS WARRANTY

DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF

INCIDENTAL OR CONSEQUENTIAL DAMAGES.
WARRANTY CARD: If a warranty card had been included with this product then please fill

it in and return it to us within 14 days of purchase. Your name and the serial number of the
product will then be registered In our database and this will hefp us to process your claim with

greater speed and efficiency should you require warranty service.

c PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY. In the event that the

-.i c Product does not conform to this warranty, the Product should be shipped or delivered, freight

ir pre-paid, with evidence of original purchase, (eg/ a copy of the sales docket), to the warrantor

at:

UNIDEN AUSTRAUA PTY LTD - SERVICE DIVISION

345 Princes Highway, Rockdale, Sydney. NSW 2216.

Customers in other States should ship or deliver the Product

freight pre-paid to tfieir nearest Uniden Authorised Repair Centre.

(Contact Uniden for the nearest Warranty Agent to you).

UTUA01549DC © Copyright 1992 Uniden Australia Pty. Ltd.

Ph [phone] Fx [phone]

Adelaide [phone] Brisbane [phone]
Melbourne [phone] Perth [phone]

Printed in the Philippines