Uniden PC-68LTX User manual

®

PC68LTX

Owner’s Manual

Printed in Vietnam

U01UT415ZZZ(0)

CUSTOMER CARE

At Uniden®, we care about you!

If you need assistance, please do NOT return this product to your place of
purchase.

Quickly find answers to your questions by:

1. Reading your owner’s manual.

2. Visiting our customer support website at www.uniden.com.

Images in this manual may dier slightly from your actual product.

Save your receipt/proof of purchase for warranty.

© 2016. All rights allowed by law are hereby reserved.

Uniden is a registered trademark of Uniden America Corporation.

Bearcat is a registered trademark of Uniden America Corporation.

Features, specifications, and availability of optional accessories are all subject to change without notice.

CONTENTS

CUSTOMER CARE .......................................................................................... 2

DESCRIPTION .............................................................................. 5

EMERGENCY OPERATIONS .......................................................................... 5

WHAT’S IN THE BOX ...................................................................................... 5

FRONT VIEW .................................................................................................. 6

REAR VIEW ..................................................................................................... 7

INSTALLATION ............................................................................ 7

MOBILE INSTALLATION ............................................................................... 7

Mobile Antenna ........................................................................................... 8

Connecting the Power Cords ...................................................................... 8

Ground Information ................................................................................... 8

USING YOUR PC68LTX ............................................................... 9

TURN PC68LTX ON/OFF ................................................................................ 9

CB MODE ........................................................................................................ 9

PA MODE ...................................................................................................... 10

HI CUT/OFF .................................................................................................. 10

TO TRANSMIT/RECEIVE .............................................................................. 10

PREVENTIVE MAINTENANCE .................................................. 11

TROUBLESHOOTING ................................................................ 11

SPECIFICATIONS ....................................................................... 12

RADIO CODE DEFINITIONS ..................................................... 14

10-CODES ..................................................................................................... 14

FCC PART 15/IC COMPLIANCE ................................................ 15

FCC COMPLIANCE ....................................................................................... 15

IC COMPLIANCE .......................................................................................... 15

ONE-YEAR EXTENDED WARRANTY ....................................... 16

4

DESCRIPTION

Your Uniden PC68LTX represents the highest quality communications
device designed for use in the Citizens Band Radio Service. It will
operate on any of the 40 AM frequencies authorized by the Federal
Communications Commission (FCC).

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

EMERGENCY OPERATIONS

1. Set the switch to CH9 or turn Channel Selector knob to Channel 9.

2. Press PTT switch on microphone and speak clearly.

3. If there is no response, select an active channel and ask that party
to RELAY YOUR EMERGENCY BROADCAST ON CHANNEL 9.

All channels, except Channel 9 may be used for normal communication.
Channel 9 is reserved by the FCC for emergency communications involving
the immediate safety of individuals or protection of property. Channel 9
may also be used to render assistance to a motorist.

This is an FCC rule and applies to all operators of CB radios.

WHAT’S IN THE BOX

Carefully unpack your PC68LTX and check the contents against this list:

• PC68LTX

CB 2-way mobile radio

• Microphone

• Mounting Bracket Kit

• DC Power Cord

• Reference Guide

• Part 95 Subpart D (FCC Rules)

If any items are missing or damaged, visit our website at www.uniden.com
for further information.

5

Never use damaged products!

FRONT VIEW

2 8765431 9

13

101415 12 11

Item Denition

1 Function Meter: Measures RF and S signal strength.

2 NB/ANL/ANL/OFF: Reduces external noise and interference from vehicle

ignition systems. Select OFF to turn o this function.

3 CB/PA: Selects the PA (Public Address) or CB (Citizens Band).

Do not use PA function unless an external speaker is
connected.

4 BRT/DIM: Adjusts the brightness of LED Channel Display and RF Signal

Meter.

5 CH9/OFF: Instantly tunes to emergency CB Channel 9. Turn o to resume

normal channel operations.

6 HI CUT/OFF: When turned on, cuts high audio frequencies.

7 RX/TX Indicator: Red-transmitting; green-receiving.

8 CH 9 Indicator: Red-Channel 9 switch is on.

9 Channel Display: Displays current channel selection.

10 Channel Knob: Selects transmission and reception channels.

11 RF GAIN: Improves reception in strong signal areas.

12 MIC GAIN: Adjusts microphone sensitivity.

13 On/O - Volume:Turns the radio on or o and adjusts the speaker volume.

14 SQUELCH: Reduces background noise when there is no incoming signal.

15 Microphone Jack

6

REAR VIEW

16 17 18

19

Item Denition

16 Antenna Jack

17 PA SP: Connects optional external 8-ohm, 4-watt speaker for use as a public

address system.

To prevent acoustic feedback, separate the microphone
from the speaker when operating the PA at high output
levels.

18 EXT. SP: Connects an 8-ohm 4-watt speaker to remotely monitor the

receiver.

When the external speaker is plugged in, the internal
speaker is o.

19 POWER: Connects DC power to transceiver.

INSTALLATION

MOBILE INSTALLATION

Plan the location of the transceiver and microphone bracket before
beginning installation.

1. Select a location that is convenient for operating the radio but
does not interfere with the driver or passenger.

2. Install bracket with self-tapping screws provided.

3. Connect power cords (see page 8).

4. Attach the microphone bracket to side of the radio.

5. Attach radio to bracket.

7

Mobile Antenna

WARNING! The antenna used for this radio must be installed at least 16.92
inches (43 cm) away from all persons. The antenna must not be collocated
or used with any other antenna or transmitter.

CAUTION: Never operate your radio with no antenna or with a damaged
antenna cable. This can damage the radio.

You must purchase an antenna to operate this radio. Because the
maximum power output of the transmitter is limited by the FCC, the
quality of your antenna is very important. To achieve the maximum
transmission distance, Uniden strongly recommends that you install only
a high quality antenna. You have just purchased a superior transceiver ­don’t diminish its performance by installing an inferior antenna.

Only a properly matched antenna system will allow maximum power
transfer from the 50 ohm transmission line to the radiating element.
Your Uniden dealer is qualified to help you select the proper antenna for
your requirements. A whip style antenna may be used for automobile
installation.

A short ‘loaded’ whip antenna is easier to install on an automobile, but its
efficiency is less than that of a full quarter-wave whip antenna.

Connecting the Power Cords

Uniden recommends connecting the power lead to the Ignition Switch
Accessory Terminal. This way, the transceiver is automatically turned off
when the ignition switch is turned off.

As an alternative, the power cord may be connected to an available
terminal on the fuse block or to a point in the wiring harness. However,
caution must be taken to prevent a short circuit. If in doubt, contact your
vehicle dealer for information.

Ground Information

This transceiver may be installed and used in any 12-volt DC negative
ground system vehicle.

8

Negative Ground System

With a negative ground system, the negative (-) battery terminal is
usually connected to the vehicle motor block.

Connect the red DC power cord from the
transceiver to the positive (+) battery terminal
or other convenient point. Then connect the
black power cord to the vehicle chassis or negative (-) battery terminal.

USING YOUR PC68LTX

TURN PC68LTX ON/OFF

Turn the VOLUME knob clockwise until the unit turns on and the display
backlight turns on.

Turn the VOLUME knob counter-clockwise to turn the unit off.

CB MODE

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

1. Turn unit on. Set volume to a comfortable level.

2. Set switch to CB.

3. Turn the CH knob to select a CB channel.

4. Set noise limitations switch to NB/ANL.

5. Adjust squelch.

• Turn SQUELCH knob fully clockwise so only strong signals can

get through.

• Turn SQUELCH knob fully counterclockwise until you hear a

hiss. Everything gets through - noise, weak signals, and strong
signals

• Turn SQUELCH knob clockwise until the hiss stops. Only

clearer signals get through.

Set SQUELCH only when the radio is not receiving a strong signal.

6. Press and hold PTT and check the multifunction meter. It will
show the RF output power.

7. Turn RF GAIN knob to set RF gain sensitivity. Normally, the knob is

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turned clockwise to maximum.

8. Turn MIC GAIN knob to adjust microphone sensitivity for
transmission. Normally, the knob is turned clockwise to
maximum.

9. Set the brightness (BRT or DIM).

PA MODE

Using the PA mode requires an optional speaker.

1. Switch to PA.

2. Press and hold PTT to speak.

3. Release when nished.

To prevent acoustic feedback, separate the microphone from the speaker
when operating the PA at high output levels.

If you are in PA mode but not pressing PTT, the radio receives CB
transmissions and transmits them through the PA speaker. You cannot
respond to the transmission.

HI CUT/OFF

The Hi Cut function reduces high frequencies. Switch to HI CUT to turn
off higher frequencies.

TO TRANSMIT/RECEIVE

Perform a voltage Standing Wave Ratio (SWR) measurement prior to using
the transmitter. An SWR ratio in excess of 2:1 may damage the transmitter.

Be sure to read and understand Part 95, FCC Rules and Regulations before
operating your transmitter.

1. Select a channel.

2. Adjust MIC GAIN.

3. When the channel is clear, press the microphone PTT and speak.

4. Release PTT when you are nished speaking to listen for the
response.

10

PREVENTIVE MAINTENANCE

Every six months:

• Check the Standing Wave Ratio (SWR).

• Be sure all electrical connections are tight.

• Inspect antenna coaxial cable for wear or breaks in shielding.

• Be sure all screws and mounting hardware are tight.

The PC68LTX is designed to give you years of trouble-free service. There
are no user-serviceable parts inside. Except for the fuse in the DC power
cord, no maintenance is required.

To replace a blown fuse:

1. Press ends of the fuse holder together. Twist to open. Carefully
separate the two pieces.

2. Remove the fuse and inspect. If blown, replace with the same
type fuse.

Use only the fuse specied for your PC68LTX. Failure to do so may void
your warranty.

TROUBLESHOOTING

In the event of system malfunction, perform the following procedures:

Problem Suggestion

Unit does not power up Check ignition key position.

Check power cord connections.
Check fuse.
Check vehicle electrical system.

No reception Check microphone connection.

Set CB/PA to CB.
Check VOLUME and SQUELCH.
Check antenna.
Check antenna connection.
Adjust RF Gain.

Poor Reception Check VOL and SQ.

Adjust RF Gain.
Be sure antenna SWR is normal.

No Transmission Set CB/PA switch to CB.

Check microphone connection.
Adjust MIC Gain.

11

Problem Suggestion

Low Transmission Be sure antenna SWR is normal.

Adjust MIC Gain.

If you do not get satisfactory results after performing these checks, visit
www.uniden.com for information.

SPECIFICATIONS

GENERAL

Channel: 40

Frequency Range: 26.965 - 27.405 MHz

Frequency Control: PLL Synthesizer

Antenna Impedance: 50 ohms

Power Input: 13.8VDC

Current Drain

TX: AM Full Modulation: 2.2A (max)

RX: At no signal: 400mA

Squelch: 250mA

Operating Temperature: -22°F to 140°F (-30°C to 60°C)

Accessories: DC Power Cord

Microphone
Microphone Hanger
Mounting Bracket

Size (W x D x H): 6.3 in. x 6.4 in. x 2.2 in.

(without knobs and jacks)
(160 mm x 162.5 mm x 55.8 mm)

Weight: 3 Pounds

TRANSMITTER

Output Power: 4 watts

Emission Type: 6K00A3E

Hum and Noise: Better than 40 dB

Frequency Tolerance: ±0.002%

Modulation Percentage (Peak): 100%

Spurious Rejection: -70 dB

Output Impedance: 50 ohm, unbalanced

RECEIVER

Sensitivity at 10 dB S+N/N: 0.5 µV

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Sensitivity at 500 mW Audio Output: 0.5 µV

Squelch Threshold: 0.5 µV

Antenna Impedance: 50 ohms

Squelch Tight: 1000 µV

Signal Meter S-9: 100 µV

Audio Output Power (max.): 5 watts

Audio Output (10% Dist.): 4 watts

Adjacent Channel Rejection: 60dB

Image Rejection: 70dB

Internal Speaker Impedance: 16 ohms

External Speaker Impedance: 8 ohms

PUBLIC ADDRESS

Output Power at 10% Distortion: 4 watts

Specications shown are typical and subject to change without notice.

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RADIO CODE DEFINITIONS

10-CODES

The following list contains common “10-Codes” used by CB radio
operators for faster communication and better understanding.

Code Meaning Code Meaning

10-1 Received poorly 10-27 I am moving to channel

10-2 Receiving well 10-28 Identify your station

10-3 Stop transmitting 10-29 Time is up for contact

10-4 OK, message received 10-30 Does not conform to FCC rules

10-5 Relay message 10-32 I will give you a radio check

10-6 Busy, stand by 10-33 EMERGENCY TRAFFIC

10-7 Out of service, leaving air 10-34 Trouble at this station

10-8 In service, subject to call 10-35 Condential information

10-9 Repeat message 10-36 Correct time is

10-10 Transmission completed,

standing by

10-11 Talking too rapidly 10-38 Ambulance needed at

10-12 Visitors present 10-39 Your message is delivered

10-13 Advise Weather/ Road condi-

tions

10-16 Make pickup at 10-42 Trac accident at

10-17 Urgent business 10-43 Trac tie up at

10-18 Anything for us? 10-44 I have a message for you

10-19 Nothing for you, return to base 10-45 All units within range please report

10-20 My location is 10-50 Break channel

10-21 Call by telephone 10-60 What is next message number

10-22 Report in person to 10-62 Unable to copy, use phone

10-23 Stand by 10-63 Net directed to

10-24 Completed last assignment 10-64 Net clear

10-25 Can you contact 10-65 Awaiting your next message/assign-

10-26 Disregard last information 10-67 All units comply

10-37 Wrecker needed at

10-41 Please turn to channel

ment

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Code Meaning Code Meaning

10-70 Fire at 10-85 My address is

10-71 Proceed with transmission in

sequence

10-77 Negative contact 10-93 Check my frequency on this channel

10-81 Reserve hotel room for 10-94 Please give me a long count

10-82 Reserve room for 10-99 Mission completed, all units secure

10-84 My telephone number is 10-200 Police needed at

10-91 Talk closer to microphone

FCC PART 15/IC COMPLIANCE

FCC COMPLIANCE

FCC Compliance Statement: This device complies with Part 15 of the
FCC rules. Operation is subjected to the following two conditions: (1)
this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause
undesired operation.

Changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the
equipment.

Avis de conformité à la FCC : Ce dispositif a été testé et s’avère
conforme à l’article 15 des règlements de la Commission fédérale des
communications (FCC). Ce dispositif est soumis aux conditions suivantes:

1) Ce dispositif ne doit pas causer d’interférences nuisibles et; 2) Il doit

pouvoir supporter les parasites qu’il reçoit, incluant les parasites pouvant
nuire à son fonctionnement.

Tout changement ou modification non approuvé expressément par
la partie responsable pourrait annuler le droit à l’utilisateur de faire
fonctionner cet équipement.

IC COMPLIANCE

This device complies with Industry Canada license-exempt RSS
standard(s).Operation is subject to the following two conditions: (1) this
device may not cause interference, and (2) this device must accept any

15

interference, including interference that may cause undesired operation
of the device.

Changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the
equipment.

Cet appareil est conforme aux normes RSS exemptes de licences
d’Industrie Canada. Son fonctionnement est soumis aux deux conditions
suivantes : (1) cet appareil ne doit pas causer d’interférences nuisibles
et (2), il doit pouvoir accepter les interférences, incluant celles pouvant
nuire à son fonctionnement normal.

Tout changement ou modification non approuvé expressément par
la partie responsable pourrait annuler le droit à l’utilisateur de faire
fonctionner cet équipement.

ONE-YEAR EXTENDED WARRANTY

Important: Evidence of original purchase is required for warranty service.

WARRANTOR: UNIDEN AMERICA CORPORATION (“Uniden”)

ELEMENTS OF WARRANTY: Uniden warrants, for one year, to the original retail owner, this

Uniden Product to be free from defects in materials and craftsmanship with only the limitations or
exclusions set out below.

WARRANTY DURATION: This warranty to the original user shall terminate and be of no further
effect one year after the date of original retail sale. The warranty is invalid if the Product is (A)
damaged or not maintained as reasonable or necessary, (B) modified, altered, or used as part
of any conversion kits, subassemblies, or any configurations not sold by Uniden, (C) improperly
installed, (D) serviced or repaired by someone other than an authorized Uniden service center
for a defect or malfunction covered by this warranty, (E) used in any conjunction with equipment
or parts or as part of any system not manufactured by Uniden, or (F) installed or programmed by
anyone other than as detailed by the owner’s manual for this product.

STATEMENT OF REMEDY: In the event that the product does not conform to this warranty at
any time while this warranty is in effect, warrantor will either, at its option, repair or replace the
defective unit and return it to you without charge for parts, service, or any other cost (except
shipping and handling) incurred by warrantor or its representatives in connection with the
performance of this warranty. Warrantor, at its option, may replace the unit with a new or
refurbished unit. THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND ENTIRE WARRANTY
PERTAINING TO THE PRODUCT AND IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES
OF ANY NATURE WHATSOEVER, WHETHER EXPRESS, IMPLIED OR ARISING BY OPERATION OF
LAW, INCLUDING, BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR

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FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE
REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow this exclusion or limitation of incidental or consequential damages so
the above limitation or exclusion may not apply to you.

LEGAL REMEDIES: This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state. This warranty is void outside the United States of America.

PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY: If, after following the
instructions in the owner’s manual you are certain that the Product is defective, pack the
Product carefully (preferably in its original packaging). The Product should include all parts and
accessories originally packaged with the Product. Include evidence of original purchase and a
note describing the defect that has caused you to return it. The Product should be shipped freight
prepaid, by traceable means, to warrantor at:

Uniden America Corporation
C/O Saddle Creek
743 Henrietta Creek Rd., Suite 100
Roanoke, TX 76262

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