Uniden PRO 540e User Manual

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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