COVER
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Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Elimination of Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Emergency Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Mobile Station Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Mobile Station Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Marine Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Connecting the Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Ground Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Negative Ground System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Positive Ground System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
To Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
To Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Function Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Weather Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Servicing Your Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Radio Code Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Carefully unpack your PC68LTW and check the contents against this list:
n
PC68LTW CB 2-way mobile radio
n
Microphone
n
Mounting Bracket Kit
n
DC Power Cord
n
Reference Guide
n
Part 95 Subpart D (FCC Rules)
n
Product Registration Card
If any items are missing or damaged, contact your place of purchase immediately.
Please be sure to complete and mail your
Product Registration card.
UUnnppaacckkiinngg
CCoonntteennttss
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1
Your Uniden PC68LTW 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 FCC has ruled that CB Radio Service operators are no longer required to
obtain an FCC License to operate their CB equipment. In doing so, the FCC also
decided to permit CB station operation without station identification.
Elimination of individual station licenses does not reduce 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 Citizens
Band Radio Service
.
Uniden is a registered trademark of Uniden America Corporation.
1. Set the switch to
CH9
or turn
Channel Selector
knob to Channel 9.
2. Press the microphone
PTT
switch 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.
EEmmeerrggeennccyy OOppeerraattiioonn
Features, Specifications, and availability of Optional
Accessories are subject to change without notice.
EElliimmiinnaattiioonn ooff LLiicceennssiinngg
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.
DDeessccrriippttiioonn
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FRONT VIEW PC68LTW BACKLIGHTED PANEL
1.
Microphone Jack
2.
ON/OFF - VOLUME
: Turns radio on or off; adjusts speaker volume.
3.
SQUELCH
: Reduces background noise when there is no
incoming signal.
4.
RF GAIN
:
Improves reception in strong signal areas.
5.
MIC GAIN
: Adjusts microphone sensitivity.
6.
Weather Channel
Knob: Selects weather channel.
7.
Channel
Knob: Selects channel.
8.
Channel Display
: Displays current channel selection.
9.
RX/TX
Indicator: Red-transmitting; green-receiving.
10.
CH 9
Indicator: Red-Channel 9 switch is on.
11.
Dynamic Squelch Control (DSC)
: Automatically sets Squelch to
optimal level for stronger signals.
12.
CH9/OFF
: Turns Channel 9 on or off.
13.
BRT/DIM
: Adjusts the brightness of LED Channel Display and
Indicator and RF Signal Meter.
14.
NB/ANL
: Reduces external noise and interference from vehicle
ignition systems.
15.
CB/WX/PA
Switch: Selects PA(Public Address);
WX
(Weather Radio) or CB.
16.
Function Meter
: Measures RFand Ssignal strength.
Do not use PA function unless an external speaker
is connected.
CCoonnttrroollss aanndd FFuunnccttiioonnss
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3
REAR VIEW
17.
POWER
: Connects DC power to transceiver.
18.
EXT. SP
: Connects an 8-ohm 4-watt speaker to remotely monitor
the receiver.
19.
PA SP
: Connects optional external 8-ohm, 4-watt speaker for use
as a public address system.
20.
ANT
: Connects antenna cable to transceiver.
To prevent acoustic feedback, separate the
microphone from the speaker when operating the
PA at high output levels.
When the external speaker is plugged in, the
internal speaker is off.
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4
MOBILE STATION 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 wiring. (See instructions for Connecting the Power Cords).
4. Attach the microphone bracket to side of the radio.
5. Attach radio to bracket.
MOBILE STATION ANTENNA
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, we strongly recommend 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. However, the efficiency of the short
whip antenna is less than that of a full quarter-wave
whip antenna.
MARINE INSTALLATION
Consult your dealer for information regarding marine installation. It is
important to adequately ground the system and to prevent electrolysis
between the fittings in the hull and the water.
Plan the location of the transceiver and
microphone bracket before beginning installation.
IInnssttaallllaattiioonn
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CONNECTING THE POWER CORDS
We recommend 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.
Or, 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
Most newer U.S. and foreign made cars, and small trucks, use a negative
ground system. Some older cars, and some new large trucks, use a positive
ground system.
With a negative ground system, the negative (-) battery terminal is usually
connected to the vehicle motor block. If you cannot determine the polarity
system of your vehicle, contact your vehicle dealer for information.
Negative Ground System
If you have a negative ground system,
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.
Positive Ground System
If you have a positive ground system,
connect the black DC power cord from the
transceiver to the negative (-) battery
terminal or other convenient point. Then,
connect the red power cord to the vehicle
chassis or the positive (+) battery terminal.
This transceiver may be installed and used in any 12-volt
DC negative or positive ground system vehicle.
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1. Turn unit ON.
VOLUME
Control to a
comfortable level.
2. Select CHANNEL.
3. Set switch to
NB/ANL
.
Dynamic Squelch Control
automatically sets Squelch to the optimal level
for stronger signals. To scan for weaker signals, turn off
Dynamic Squelch
Control
and perform the following steps:
4. Turn SQUELCH fully clockwise
so only strong signals can get through.
4b. Turn SQUELCH fully counter-clockwise
until you hear a hiss. Everything gets
through - noise, weak signals, and
strong signals.
4c. Turn SQUELCH back clockwise until
the hiss stops. Only clearer signals get
through.
Set SQUELCH only when
the radio is not receiving
a strong signal.
Be sure that the power source, antenna, and microphone
are properly connected before proceeding.
TToo RReecceeiivvee
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5. Adjust RF GAIN knob (small)
to optimize reception in strong
signal areas.
1. Select a channel.
2. Adjust
MIC GAIN
.
3. When the channel is clear, press
the microphone
PTT
switch
and speak.
RF Meter
: Measures RF Output
Power for transmitter. Press
microphone
PTT
switch to read
transmitting power.
S-Meter
: Measures incoming signal
strength. The meter swings to indicate
signal strength. i.e. S 3, S 5, S 7 . . .
FFuunnccttiioonn MMeetteerr
Be sure to read and understand Part 95, FCC Rules
and Regulations before operating your transmitter.
Perform a voltage Standing Wave Ratio (
SWR
)
measurement prior to using the transmitter. A
SWR
ratio in excess of 2:1 may damage the transmitter
TToo TTrraannssmmiitt
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Your PC68LTW combines a CB Radio with a Weather Radio and a
Weather Alert System. The Weather Radio continually broadcasts
weather conditions. The Weather Alert System sounds a seven-second
signal in the event of severe weather.
To configure your CB radio to receive
weather alerts while using your CB radio:
1. Set the switch to WX.
2. Turn the
Weather Channel
knob to
the channel with best reception.
Left at this setting, you will hear only
weather broadcasts and Weather Alert Signals.
To use your CB radio normally while monitoring
for weather alerts, set the switch to
CB
.
When you hear a Weather Alert Signal, and desire to
hear weather information, reset the switch to WX.
If you want to stop the weather alert signal while using your CB radio, or if
you don’t want to hear alerts, turn the
Weather Channel
knob to
OFF
.
WWeeaatthheerr IInnffoorrmmaattiioonn
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Every six months:
1. Check the Standing Wave Ratio (SWR).
2. Be sure all electrical connections are tight.
3. Inspect antenna coaxial cable for wear or breaks in shielding.
4. Be sure all screws and mounting hardware are tight.
The PC68LTW 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 specified for your PC68LTW.
Failure to do so may void your warranty.
MMaaiinntteennaannccee
PPrreevveennttiivvee MMaaiinntteennaannccee
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In the event of system malfunction, perform the following procedures:
Problem Suggestion
Unit does not power up
q
Check the ignition key position.
q
Check power cord connections.
q
Check fuse.
q
Check vehicle electrical system.
No reception
q
Check microphone connection.
q
Set
CB/WXPA
switch to CB.
q
Check
VOLUME
and
SQUELCH
.
q
Check antenna.
q
Check antenna connection.
q
Set
RF GAIN
to
MAX
.
Poor Reception
q
Check
VOLUME
and
SQUELCH
.
q
Be sure antenna
SWR
is normal.
q
Set
RF GAIN
to
MAX
.
No Transmission
q
Set
CB/WX/PA
switch to CB.
q
Check microphone connection.
q
Check
MIC GAIN
and adjust to
MAX
.
Low Transmission
q
Check
MIC GAIN
and adjust to
MAX
.
If you do not get satisfactory results after performing the above checks,
call the Uniden Customer Service Center at 1-800-297-1023, 8:00 a.m. to
5:00 p.m. CST, Monday through Friday.
Technical information, diagrams, and charts are provided on request. It is
the user's responsibility to see that this radio is operating at all times in
accordance with the FCC Citizens Radio Service regulations. We highly
recommend that you consult a qualified radio/telephone technician for
servicing and aligning this CB radio product. Please refer to the WARNING
information on page 1 of this Guide.
When ordering parts, be sure to specify the correct
model number and serial number of the unit.
SSeerrvviicciinngg YYoouurr TTrraannsscceeiivveerr
TTrroouubblleesshhoooottiinngg
10
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GENERAL
Channel: 40
Frequency Range: 26.965 - 27.405 MHz
Weather Frequencies: 162.400 MHz (WX CH1)
162.425 MHz (WX CH2)
162.450 MHz (WX CH3)
162.475 MHz (WX CH4)
162.500 MHz (WX CH5)
162.525 MHz (WX CH6)
162.550 MHz (WX CH7)
Frequency Control: PLL Synthesizer
Antenna Impedance: 50 ohms
Power lnput: 13.8 VDC
Current Drain
TX: AM Full Modulation 2.2 A max)
RX: Squelch 25 A
Operating Temperature: -30°C to 60°C
-10°C to +60°C (DSC on)
Accessories: DC Power Cord
Microphone
Microphone Hanger
Mounting Bracket
Size (W x D x H): 7-9/32” x 8-5/8” x 2-13/64”
Weight: 3 Pounds
TRANSMITTER
Output Power: 4 watts
Emission Type: 6A3
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
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
Selectivity @ 6 dB Down: 7 kHz
Adjacent Channel Rejection: 70 dB
Image Rejection: 90 dB
Internal Speaker Impedance: 1ohm
External Speaker Impedance: 80 ohms
PUBLIC ADDRESS
Output Power at 10% Distortion: 4 watts
Specifications shown are typical and subject to change without notice.
SSppeecciiffiiccaattiioonnss
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WARRANTOR: UNIDEN AMERICA CORPORATION (“Uniden”)
ELEMENTS OF WARRANTY: Uniden warrants, for two years, 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 two years 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 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
Parts and Service Division
4700 Amon Carter Blvd
Fort Worth, TX 76155
(800) 297-1023, 8 a.m. to 5 p.m., Central,
Monday through Friday
TTwwoo--YYeeaarr EExxtteennddeedd WWaarrrraannttyy
Important: Evidence of original purchase is required for warranty service.
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The following list contains common “10-Codes” used by CB radio
operators for faster communication and better understanding.
RRaaddiioo CCooddee DDeeffiinniittiioonnss
Code Meaning
10-1 Received poorly
10-2 Receiving well
10-3 Stop transmitting
10-4 OK, message received
10-5 Relay message
10-6 Busy, stand by
10-7 Out of service, leaving air
10-8 In service, subject to call
10-9 Repeat message
10-10 Transmission completed,
standing by
10-11 Talking too rapidly
10-12 Visitors present
10-13 Advise Weather/
Road conditions
10-16 Make pickup at
10-17 Urgent business
10-18 Anything for us?
10-19 Nothing for you, return
to base
10-20 My location is
10-21 Call by telephone
10-22 Report in person to
10-23 Stand by
10-24 Completed last assignment
10-25 Can you contact
10-26 Disregard last information
10-27 I am moving to channel
10-28 Identify your station
10-29 Time is up for contact
10-30 Does not conform to
FCC rules
10-32 I will give you a
radio check
10-33 EMERGENCY TRAFFIC
10-34 Trouble at this station
Code Meaning
10-35 Confidential information
10-36 Correct time is
10-37 Wrecker needed at
10-38 Ambulance needed at
10-39 Your message is delivered
10-41 Please turn to channel
10-42 Traffic accident at
10-43 Traffic tie up at
10-44 I have a message for you
10-45 All units within range
please report
10-50 Break channel
10-60 What is next
message number
10-62 Unable to copy, use phone
10-63 Net directed to
10-64 Net clear
10-65 Awaiting your next
message/assignment
10-67 All units comply
10-70 Fire at
10-71 Proceed with transmission
in sequence
10-77 Negative contact
10-81 Reserve hotel room for
10-82 Reserve room for
10-84 My telephone number is
10-85 My address is
10-91 Talk closer to microphone
10-93 Check my frequency on
this channel
10-94 Please give me a
long count
10-99 Mission completed, all
units secure
10-200 Police needed at
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back cover
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