Uniden AX 144 owner manual General Information, Antenna

Models: AX 144

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GENERAL INFORMATION

This prevents the set being left on accidentally when the driver leaves the car and also permits operating the radio without the engine running. You can locate the accessory contact on most ignition switches by tracing the power wire from the AM broadcast receiver in the car.

Note: See ground connection under GENERAL INFORMATION for more detail.

4.Connect the black wire to ground. This is usually the chassis of the car. Any con- venient location with good electrical contact may be used. (remove paint).

5.Mount the microphone hanger on the side of the unit or near the unit, using two screws supplied. When mounting in an automobile, place the hanger on the dash so the microphone is easily accessible.

GENERAL INFORMATION

GROUND CONNECTION

This radio may be installed and used in any 12V DC negative or positive ground system vehicle. Most new U.S. and foreign made cars or small trucks use a negative ground system while some older cars and some newer large trucks may use a positive ground system.

1.Negative ground system: Connect the Red power lead from the radio to the- positive or (+) battery terminal or other convenient point, and connect the Black power lead to the chassis or vehicle frame or (-) battery terminal.

2.Positive ground system: In the case of positive ground system, connect the Black power lead from the radio to the negative or (-) battery terminal or other convenient point, and connect the Red power lead to the chassis or vehicle frame or (+) battery terminal.

ANTENNA

This radio is designed to operate into a 52 ohm CITIZENS RADIO antenna. Best results will be obtained from your transceiver if you use a good antenna, properly installed. (Refer to the antenna installation instructions included with your antenna.)

A vertically polarized quarter-wavelength whip antenna provides the most reliable operation and greater range. The shorter loaded-type whip antennas are more at- tractive, compact and adequate for applications where the maximum possible dis- tance is not required. Also, the loaded whip antennas do not present the problems of height imposed by the full quarter-wavelength whip.

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Uniden AX 144 owner manual General Information, Antenna