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IN STAI.LATI ON

MOBILE INSTALLATION

Plan the location of the radio and micro- phone bracket before starting installation.

Select a location that is convenient for op- eration and does not interfere with the

driver or passenger in the vehicle. The mic hanger bracket should be securely fastened to a solid surface using the self-

tapping screws which are provided. The button on the back of the radio will slide

into the mic hanger to hold it securely in place.

Mobile Antenna

Since the maximum allowable power out- put of the transceiver is limited by the D.O.C, the antenna isa very important fac- tor affecting transmission distance. The magnetic mount base and screw-in teles- copic antenna will provide maximum range when properly installed.

Screw the antenna into the base. Place the

base on a flat metallic area of your vehicle roof. The center of the roof is ideal for 3600

transmission. Feed the coaxial cable thru a

window or door. With the battery pack off, connect the antenna to the bottom of the unit.

If another external antenna is desired con- sult your local CB Dealer for a com- patible model. 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 radiat-

ing element. We recommend that you have your system checked with an SWR meter when installing your antenna. Your

local dealer is qualified to assist you in the selection an installation of a proper

antenna to meet your application: requirements.

Connecting the Power

Connect the power cord to the jack on the bottom of the unit (battery pack must be removed). Plug the cord into the cigarette lighter of your vehicle. The PRO 31 Oe may I also be connected directly to the fuse block with the proper wiring (not] included).

IMPORTANT - The cigarette lighter plug is designed to be used with negative ground vehicles. Do not attempt to oper- ate the unit with the power cord con- nected to a positive ground vehicle.

Ground Information

Most newer cars and small trucks use a ne- gative ground system, while some older cars and some newer, larger trucks may use a positive ground system. A negative

ground system is generally identified by the I "-" battery terminal being connected to the vehicle motor block. Ifyou cannot de- termine the polarity ofyour vehicle, consult your vehicle dealer for information.

Positive Ground System

If you are operating on a positive ground system, the unit must be wired directly to the fuse block. Connect the black lead

from the radio to the negative" -" bat- tery terminal or other convenient point and connect the red power lead to the chassis or vehicle frame, or the positive " + " terminal of the battery.

Cord Holder

Install the cord holder with ANT. label

on right-hand side and PWR. label on left-hand side as shown. Match key (AJ with notch (BJ as illustrated.

While pressing the cord-holder's upper and lower sides, insert the cord holder

securely into the grooves at the bottom of your PRO 31 De. Cord holder will snap into place when pressure is released.

PORTABLE USE

The PRO 31 De can operate under its own battery power. The snap-on bat- tery pack included with your unit makes it a true Emergency CB. It also makes a

great portable CB for long range com- munications outdoors.

Installing the Batteries and Bat- tery Pack

Hold the battery pack in one hand and press on the top of the pack where indi-

cated. The battery holder will slide out. Install 8 "AA" size nonrechargeable

batteries. Slide the battery holder back into the battery pack until it is flush

with the bottom. Slide the battery pack onto the bottom of the radio from left to

right until it snaps in place. Make sure the slots on the battery pack and the ra- dio fit correctly.

NOTE: When the batteries become weak the battery LED will light. Be sure to replace the batteries as soon as possible. You can preseNe battery power by select- ing the LOW position on HI/LOW switch. The LOW setting has substantially shorter transmission range.

Connecting the Antenna

For portable use the telescopic antenna will give good results. Simply unscrew it

from the magnetic mount base and screw it into the antenna connector Gn

the top of the unit. Fully extend the an- tenna for maximum range.

HI/LOW Switch

The PRO 31 De has a transmission power selector switch - HI/LOW. In the HI posi- tion the unit will transmit at the higher output power and achieve longer range. In the LOW position the transmission output power (range) is substantially reduced; however, the battery life will be increased. For longer range select the HI position. For maximum battery life select the LOW position.

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Uniden 310e manual Portable USE