Mr
unidenr
PRO 54O0
Professional Mobile CB radio
OWNER'S MANUAL
WELCOME
to the world of sophisticated, CB radio communications. Your Uniden PRO
540e represents the most advanced mobile radio ever designed for use in the
Citizens Band Radio Service. It will operate on any of the 40 AM frequencies au
thorized by the Department of Communications, Your PRO 540e features a su
perheterodyne circuit with PHASE LOCKED LOOP techniques to assure precise
frequency control. This radio has been type accepted and certified by the
D.O.C.
WARNING
Before transmitting with your transceiver, you must obtain a Department of
Communications (D.O.C.) Citizens Radio Licence. 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 (D.O.C. brochure RB 14).
This brochure also can be obtained from the D.O.C. After completing the appli
cation form, mail it with the appropriate fee to the Superintendant Regulatory
of Licensing in the State or territory in which the station wiil be operated.
MOBILE INSTALLATION
Plan the location of the radio and microphone bracket before starting installa
tion, 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 fas
tened 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
D.O.C., 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 CB radio system. You have purchased a superior quality
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. We recommend
that you use the built-in SWR meter when installing your antenna. Set your
PRO 540e to channel 20 and press the SWR key. Thq SWR scale is the first set of
numbers above the LED meter, ( H) , [2] and [H ). Make adjustments
to the antenna until the meter shows SWR reading less than \2\ ■ Your local
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.
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A short "loaded" whip antenna is more convenient to install on your automo
bile, although the efficiency is less than a full quarter wave whip antenna.
For marine installation, consult your dealer for information regarding an adequ
ate grounding system and prevention of electrolysis between fittings on the hull
and water.
CONNECTING THE POWER CORDS
With regard to the connection of the power cords, it may be possible or desir
able 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 automatically 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, how
ever, to guard against a short circuit condition. When in doubt, please contact
your vehicle dealer for specific information about your vehicle.
GROUND INFORMATION
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 ne
gative 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 nega
tive 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 '-F" battery terminal or other convenient
point and connect the black power lead to the chassis or vehicle frame, or the
negative " terminal of the battery.
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 vehicie frame, or the
positive ■+" terminal of the battery.
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CONTROLS AND FUNCTIONS
f. MIC GAIN
sion.
and ANL help to reduce harsh background noise caused by a variety of in
terference sources. "
^ iiewing^ ~ dimmer adjusts the meter and channel lights for optimum
nel. Press again to return to norma) 40 channel operation.
5. TX and RX INDICATORS - An LED lights to indicate when the radio is
transmitting or receiving.
6. MICROPHONE -- The operationa) mode of the CB is controiled 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. When transmitting, hold the mic about 2 inches from
PRO 540e IS a detachable, low impedance, dynamic type.
7. S/RF/SWR METER - This LED meter shows the relative strength of the
temT*^ output and the Standing Wave Ratio of your an-
■ Adjusts the modulation of the mic for crisp, dear transmis-
^W'TCHES - You can select either Noise Bianker and Auto
Limiter, only Automatic Noise limiter or all filters OFF The NB
^ instantly select either chan
clearly in a normal voice. The mic included with the
8. CHANNEL INDICATOR - displays the channel
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currently in use.
9. 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. Chan
nel 9 has been reserved by the D.O.C. for emergency communications in
volving the immediate safety of individuals or the immediate protection of
property. Channel 9 also may be used to render assistance to a motorist.
This is a D.O.C. rule and applies to all operators of CB radios.
10. TONE CONTROL — Adjust the bass (lo) or treble (hi) response of the re
ceiver.
11. RF GAIN — This control is used to adjust signal reception in areas where
strong signals are present. Turn the control fully clockwise for maximum re
ception.
12. 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, 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 in
crease the threshold at which a signal will be heard. You can select any le
vel to "Break Squelch"
13. VOLUME CONTROL — Rotate clockwise to turn radio on and to increase
volume.
14. SWR KEY — Press to read the Standing Wave Ratio of your antenna. The
SWR LED will light when the SWR key is pressed.
15. HI CUT KEY — Press to reduce the high frequency response of the receiver.
This key can be used to help eliminate the hiss and pop of AM reception.
16. PA SWITCH — Press this switch to the Public Address mode when an ex
ternal PA speaker is connected. When the PA mode is selected, the CB ra
dio will be disabled. Adjust the PA output level by rotating the volume con
trol.
ANTENNA CONNECTOR — This female connector permits connection of the
transmission 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 have an 8 ohm impedance and be rat
ed at 7 watts. When an external speaker is connected, the internal speaker is
disabled.
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OPERATING PROCEDURE TO RECEIVE
1. Be sure :hat the power source, anrenna and microphone are properly con
nected.
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
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.
6. When a transmission is heard you can adjust the Tone control for optimum
reception. Turn the control clockwise for better treble response. Turn the
control counterclockwise for better bass response. If the transmission has
annoying high frequency distortion try activating the HI Cut feature.
OPERATING PROCEDURE TO TRANSMIT
?. Be sure the operator has read and understands D.O.C. rules and regulations
prior to operating the transmitter.
2. Select the desired channel for transmission.
3. If the channel is clear, depress the push-to-talk switch on the side of the
microphone and speak in a normal voice.
CAUTION; The transceiver Voltage Standing Wave Ratio (V.S.W.R.) measure
ment must be performed prior to the use of the transmitter. A "V.S.W.R." ratio
In excess of E may damage the transmitter. Please check your SWR reading
frequently by following the steps in the Mobile Antenna section.
PREVENTIVE 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.
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TROUBLE SHOOTING
[f your PRO 540e 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, please call your local dealer:
Trouble
Unit will not turn on.
No power.
Poor reception
Weak transmission
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 pur
chase receipt to the address listed in the warranty,
Check
1. Check power cord and all
connections.
2. Check power cord fuse.
3. Check vehicle electrical system.
!. Check and adjust Squelch.
2, Check antenna system and cable, connec
tors.
3. Check operation mode of the radio.
1. Check antenna system and cable, connec
tors.
2. Check antenna grounding.
3. Check for corrosion on connectors.
SERVICING YOUR CB
Technical information, 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 accord
ance with the D.O.C. Citizens Radio Service regulations. We highly recommend
that you consult a qualified radiotelephone technician 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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SPECIFICATIONS
Channels:
Frequency Range:
Frequency Control:
Frequency Tolerance;
Operating Temp.;
Microphone;
Input Voltage:
Current Drain:
Size;
Weight:
Antenna Connector;
LED Meter;
TRANSMITTER
Power Output;
Modulation:
Freq. Response:
Output Impedance;
RECEIVER
Sensitivity;
Selectivity;
Image Rejection;
I.F. Frequency;
RF Gain Control:
Automatic Gain:
Noise Blanker:
Squelch:
Audio Output Power:
Freq. Response;
Tone Boost:
Distortion:
Internal Speaker;
External Speaker;
PA System;
40 AM
26.965 to 27.405 MHz
Phase Locked Loop (PLL) synthesizer
0.005%
-30“C to +50“C
Plug in type; dynamic
13.8 VDC nom. (+ or — ground)
TX: full mod., 2.0A
RX: with max audio output, 1.2A
6 I3/16"Wx83/8"Dx2"H
3 lb. 2 oz.
UHF, SO-239
Indicates relative RF output and received sig
nai strength and standing wave ratio.
4 watts
Class В amplitude modulation
300 - 3000 Hz
50 ohms, unbalanced
0.4/iV for lOdB; (S + N)/N typical (limit;
0.8,uV) .
6dB @ 7KHz, 70dB @ lOKHz typical
80 dB typical
Double Conversion Superheterodyne
1st 10.695 MHz
2nd 455 KHz
Adjustable for optimum reception
(AGC); less than iOdB change in audio out
put for inputs from 10 to 50,000 microvolts
RF type
Adjustable; threshold less than 1 fiV
7 watts max. into 8 ohms
300 to 3000 Hz
Lower: adjustable 10 dB @ 300 Hz
Upper: adjustable 10 dB @ 3000 Hz
less than 7% at 4 watts, 1000 Hz
less than 7% at 4 watts, 1 OOOHz
8 ohms, 7 watts round
[not supplied) 8 ohms
7 watts in external 8 ohm speaker
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MEMO
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WARRANTY
WARRANTOR. SANTRONIC AGENCIES PTY. LTD. 13 Garema Circuit, Kings-
grove 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 (imitation or exclusions set out below.
WARRANTY DURATION.
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 reasonable and necessary,
(b) modified, (c) improperly installed, (d) is repaired by someone other Warran
tor for a defect or malfunction covered by this Warranty, or (e) used in a manner
or purpose 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 re
pair 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 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
PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF INCIDENTAL 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 13 Garema Circuits Kingsgrove NSW 2208,
THE ORIGINAL OR COPY OF THE SALES RECEIPT OR OTHER VALID EVID
ENCE OF THE DATE OF THE ORIGINAL PURCHASE MUST ACCOMPANY THIS
PRODUCT.
This Warranty shall terminate and be of no further
UTSN0I312BZ
iRPTTROniC
AGENCIES PTY, LTD,
13 Garema Circuit, Kingsgrove, N.S.W. 2208
BRISBANE
3/12 Randall Street,
Slacks Creek,
Old 4127
Phone 107) 290-П88
Fax 107) 808 42Б1
MELBOURNE & TASMANIA
446-448 Beil Street,
East Preston,
VIC 3072
Phone (03) 484-0373
Fax 103] 484 6057
HEAD OFFICE;
Phone: 758 1522
Telex: AA73170
Fax: 102) 750 2722
PERTH
23 Geddes Street,
Balcatta,
мил. 6021
Phone (09) 344-3937
Fax (09) 349 8165
ADELAIDE
72-74 Halifax Street,
Adelaide
S.A. 5000
Phdne (08) 223-4235
Fax ¡08) 223 1471
Printed in The Philippines
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