uniden'
PC33X
40 Channel
Mobile CB Radio
INTRODUCTION
Your UNIDEN Model PC33X represents
the most advanced Mobile station type
radio ever designed for use in the Citiz
ens Band Radio Service. It will operate
on any of the 40 frequencies designated
as citizens band channels by the De
partment of Communications. Your
Model PC33X features a frequency syn
thesizing circuit with PHASE LOCKED
LOOP techniques to assure ultraprecise
Frequency control. This radio has been
Type Accepted and Type Certified by
the D.O.C.
WARNING
Before transmitting with your transceiv
er, you must obtain a Department of
Communications (D.O.C.) Citizens Ra
dio Licence. Obtain an application
form, from the D.O.C. Before complet
ing the form you should read the condi
tions governing the licensing and oper
ation of the C.R.S. (D.O.C. brochure RB
i 4), This brochure also can be obtained
from the D.O.C, After completing the
application form, mail it with the appro
priate fee to the Superintendant Regu
latory of Licensing in the State or territo
ry in which the station will be operated.
CONTROLS AND THEIR FUNCTIONS
1. HF POWER/"S" METER: This
Light Emitting Diode (LED) meter
shows the Radio Frequency power
when transmitting and the
strength of the incoming signal
when receiving.
2. CHANNEL INDICATOR: Light
Emitting Diode (LED) indicates the
channel number in use.
3. PRESS-TO-TALK MICRO
PHONE: The receiver and trans
mitter are controlled by the press-
to-talk switch on the microphone.
Press the switch to activate the
transmitter; release the switch to
receive. When transmitting, hold
the microphone two inches from
the mouth and speak clearly in a
normalvoice. The microphone pro
vided with your radio is a detach
able low impedance dynamic type.
4. OFF/VOL, CONTROL: Turn
clockwise to apply power to the ra
dio and to set the audio volume to
the desired listening level. Turn
fully counter clockwise to turn the
radio OFF.
® (D (2) ®
SQUELCH CONTROL; This
Squelch Control is rotated to cut off
or eliminate received background
noise in the absence of an incoming
signal. For maximum receive sensi
tivity, it is desired that the control
be rotated only to this point where
the receive background noise or
ambient background noise is elimi
nated. Turn the control fully coun
ter clockwise, then slowly rotate
clockwise until the receive noise
disappears. Any signal to be heard
must now be slightly stronger than
the average received noise. Further
clockwise rotation will increase the
threshold level which a signal must
overcome in orderto be heard. On
ly strong signals will be heard at the
maximum clockwise setting.
6.
ANl/OFF SWITCH: When placed
in the ANL position the Automatic
Noise Limiter circuit is activated.
The ANL circuit reduces impulse
noise.
CHANNEL SELECTOR SWITCH:
7.
This switch selects the desired
channel for transmission and recep
tion. All channels, except channel
9, may be used for communications
between stations operating under
different license, Channel 9 has
been reserved by the D.O.C. for
emergency communications involv
ing the immediate safety of individ-
9. ANTENNA CONNECTOR: This
female connector permits connec
tion of the transmission line cable
male connector (PL-259) to the
transceiver.
10. POWER CORD; A power cord is
supplied with the radio.
uals or immediate protection of
property. Channel 9 also may be
used to render assistance to a mo
torist. This in a D.O.C. rule and ap
plies to all operators of citizens
band radios,
8. TX INDICATOR; Light Emitting
Diode (LED) which indicates the
mode of operating. It indicates red
while transmitting.
Ci)
11. EXTERNAL SPEAKER: The Exter
nal Speaker Jack is used for remote
receiver monitoring. The external
speaker syould have 8-ohm imped
ance and be rated to handle at least
4.0 watts. When the external
speaker is plugged in, the internal
speaker is automatically discon
nected.
OPERATION
OPERATING
RECEIVE
1. Be sure that the power source, an
tenna and microphone are conneaed to the proper connectors before
going to the next steps.
2. Turn the un it ON by rotating the Vo
lume Control clockwise.
3. Set the Channel Selector Switch to
the desired channel.
4. Set the Volume Control to a comfort
able listening level.
5. Listen to the background noise from
the speaker. Turn the Squelch Con
trol slowly clockwise until the noise
JUST disappears (no signal should be
present). Leave the control at this
setting. The SQUELCH is now prop
erly adjusted. The receiver will re
main quiet until a signal Is actually re
ceived. Do not advance the control
too far, orsome of the weaker signals
will not be heard.
PROCEDURE TO
surement must be performed prior to
the use of the transmitter. A.V.S.W.R.
in excess of 2 : I may damage the trans
mitter.
1. Be sure the operator has read and
understands D.O.C, Rules and Regul
ations prior to operating the trans
mitter.
2. Select the desired channel.
3. If the channel is clear, depress the
push-to-talk switch on the micro
phone and speak in a normal voice.
PREVENTIVE MAINTENANCE
At six to twelve month intervals, the fol
lowing system checks should be made:
1. Check Standing Wave Ratio (SWR),
2. Inspect all electrical connections to
ensure that they are tight.
3. Inspect antenna coaxial cable for
wear or breaks on shielding.
OPERATING PROCEDURE TO
TRANSMIT
CAUTION: The transceiver Voltage
Standing Wave Ratio (V.S.W.R.) mea-
4. Inspect all screws and other mount
ing hardware for tightness.
INSTALLATION
MOBILE STATION INSTALLATION
Plan the location of the transceiver and
microphone bracket before starting the
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 secure
ly fastened to some solid face, using the
mounting bracket and seif-tapping
screws which are provided.
MOBILE STATION ANTENNA
Since the maximum allowable power
output of the transmitter is limited by
the D.O.C., the antenna is a very im
portant factor affecting transmission
distance. It is for this reason that we
strongly recommended that you install
only a quality antenna in your new citiz
ens band system. You have just pur
chased a superior transceiver. Don't di
minish its performance by installing an
inferior antenna.
Only a properly matched antenna sys
tem will allow maximum power transfer
from the 50-ohm transmission tine to
the radiating element. Your local dealer
is qualified to assist you in the selection
of the proper antenna to meet your ap
plication requirements.
For automobile installation, the whip
antenna may be used with good effect.
The most efficient and practical installa
tion is a full quarter wave whip antenna
mounted on the rear deck or fender top
midway between the rear window and
bumper.
bile, 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 pre
vention of electrolysis fittings between
the hull and water.
CONNECTING THE POWER CORDS
With regard to the connection of the
power cords, it maybe possible or desir
able to connect the (red lead for nega
tive ground system) or (black lead for
positive ground system) to the ignition
switch accessory terminal so that the
transceiver is automatically turned off
when the ignition 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 wir
ing harness. Care must be taken, how
ever, to guard against a short circuit
condition. When in doubt, please con
tact your vehicle dealer for specific infor
mation for your vehicle.
GROUND INFORMATION
NOTE: This transceiver may be in
stalled and used in any 12-volt DC ne
gative or positive ground system vehicle.
Most newer cars and small trucks use a
negative ground system, while some ol
der cars and some newer, larger trucks
may use a positive ground system.
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, it is suggested
that you consult your vehicle dealer for
definite information.
NEGATIVE GROUND SYSTEM
If you are operating on a negative
ground system, connect the red DC
power cord from the transceiver to the
positive, or [-F| battery terminal or other
convenient point and connect the black
power lead to the chassis or vehicle
frame, or (—) battery terminal.
POSITIVE GROUND SYSTEM
If you are operating on a positive
ground system, connect the black DC
power cord from the transceiver to the
negative, or (—), battery terminal or
other convenient point, and connect
the red power lead to the chassis or ve
hicle frame, or (+) battery terminal.
A short "loaded" whip antenna is more
convenient to install on your automo
GENERAL
Channels:
Frequency Range;
Frequency Control;
Frequency Tolerance;
Operating Temperature
Range;
Microphone;
Input Voltage;
Current Drain;
Size (W X L X H);
Weight:
Antenna Connector:
Semiconductors;
LED Meter;
TRANSMITTER
Power Output:
Modulation:
Frequency Response;
Output Impedance;
SPECIFICATIONS
40.
26.965 to 27.405 MHz.
Phase Locked Loop (PLL) synthesizer.
±0.005%,
-30X to + 50“C.
Plug in DIN type; Electret
13.8V DC nom. (positive or negative ground).
Transmit: AM full mod., 1.7A (maximum).
Receive; Squelched, 0.23A; full audio output 1.4A
(nominal).
4-Vi6"W (1 16mm) X 6-' Vi6"L (170mm) x I -'^/H
(38mm)
M kg
UHF, SO-239.
10 transistors, 23 diodes, 7 integrated circuits
Indicates relative power output and received sig
nal strength.
4 watts.
Class B amplitude modulation.
300 - 2500 Hz
50 ohms, unbalanced.
RECEIVER
Sensitivity:
Selectivity:
Image Rejection;
Adjacent-Channel Rejection:
IF Frequencies;
Automatic Gain Control
(AGO
Squelch:
Audio Output Power;
Frequency Response;
Distortion:
Built-in Speaker:
External Speaker
(Not supplied):
0.5fA/ for 10 dB; (S -I- N)/N typical (limit; 1.0/cV).
6 dB @ 7 kHz, 70 dB @ 10 kHz.
30 dB. typical.
60 dB, t^ical
Double conversion, 1st; 10.692 MHz.
2nd; 450 KHz.
Less than 10 dS change in audio output for inputs
from 10 to 50,000 microvolts.
Adjustable; threshold less than l/^V.
7 watts max. into 8 ohms.
300 to 2000 Hz.
Less than 10% at 4 watts. @ 1000 Hz.
16 ohms, round.
8 ohms; disables internal speaker when connect
ed.
OPERATOR TROUBLESHOOTING
Should the unit malfunction or not per
form properly, the operator should per
form the procedures indicated below;
1. If the transceiver is completely inop
erative.
* Check the power cord and fuse.
2. If trouble is experienced with receiv
ing.
* Check ON/OFF VOLUME CON
TROL setting.
* Be sure SQUELCH is adjusted
properly. If the radio over
squelched?
* Check to see that the radio is
switched to an operational mode.
3. If trouble is experienced with trans
mitting.
* Check to see that the transmission
line (coaxial cable) is securelycon-
nected to the ANTENNA CON
NECTOR.
* Be sure that the antenna is fully
extended for proper operation.
* Be sure that all transmission line
(coaxial cable] connections are se
cure and free of corrosion.
We highly recommend that you consult
a qualified radiotelephone technician
for the servicing and alignment of this
CB radio produa.
Please refer to the WARNING informa
tion contained in this Owner's Guide.
(NOTE: When ordering parts, it is es
sential to specify the correct model
number and serial number of the unit.)
WARRANTY
WARRANTOR. SANTRONIC AGEN
CIES PTY, LTD, J3 Garema Circuit,
Kingsgrove NSW 2208 ("SANTRONIC'}.
ELEMENTS OF WARRANTY.
SANTRONIC 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 War
ranty shall terminate and be of no further
effect One (I) year after the date of
original purchase of the Produa or at the
time the Product is (a) damaged or not
maintained as reasonable and necessary,
(bj 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 pur
pose for which the Product was not
intended.
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 pre
paid, 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 War
rantor 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 13 Garema Circuit
Kingsgrove NSW 2208 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 PRO
VIDE FOR n-IE REIMBURSEMENT OR
PAYMENT OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES.
PROCEDURE FOR OBTAINING PER
FORMANCE OF WARRANTY. In the
event that the Product does not conform
to this Warranty, the Product should be
shipped prepaid to Warrantor at 13
Garema Circuits Kingsgrove NSW 2208.
THE ORIGINAL OR COPY OF THE SALES
RECEIPT OR OTHER VALID EVIDENCE
OF THE DATE OF THE ORIGINAL PUR
CHASE MUST ACCOMPANY THIS
PRODUCT.
13 GAREMA CIRCUIT, KINGSGROVE
PHONE 758 1522, TELEXAA73170
P.O. Box 12, Kingsgrove, NSW 2208
BRISBANE: 3/12 RANDALL ST
SLACKS CREEK, OLD 4127
PHONE 07 290 1188
UTSN01318EZ(SK)
aanironic i
AGENCIES PTY.LTD.
MELBOURNE; 446-448 BELLST.,
EAST PRESTON VIC 3072
PHONE; (03) 484 0373
PERTH; 23 GEODES ST.,
BALCATTA WA 6021
PHONE; (09) 344 3937
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