Cobra 20XTR Instrukcje Operacyjne Pobierz pdf (Strona 9)

Ignition Noise Interference

Use of a mobile receiver at low signal levels is

normally limited by the presence of electrical noise.

Under most operating conditions, when signal level is

adequate, the background noise does not present a

serious problem. Also, when extremely low level

signals are being received, the transceiver may be

operated with vehicle engine turned off.The unit

requires very little current and therefore will not

significantly discharge the vehicle battery.

Even though this radio has an automatic noise limiter,

in some installations ignition interference may be

high enough to make good communications

impossible. Consult your COBRA dealer or a 2-way

radio technician for help in locating and correcting

the source of severe noise.

Temporary Mobile Operation

For temporary mobile operation, you may want to

purchase an additional cigarette lighter adapter from

your COBRA dealer. This adapter and a magnetic

mount antenna allow you to quickly "install" your

transceiver for temporary use.

Operation

Ignition Noise

Interference

Note

When using the unit with

cigarette adapter, turn off

when not in use to avoid

draining the battery.

Temporary

Mobile

Operation

Note

Red wire is connected to

positive side of socket center

tip. Black wire is connected to

negative side contacts.

Note

Radio resets to CH 9 when

connected to cigarette

lighter plug.

EXT

ANT

13.8V DC

Rear Panel

Antenna Connector

This female connector permits connection of the

transmission line cable male connector to the

transceiver.

External Speaker

The External Speaker Jack is used for an external

speaker.The external speaker should have 8-ohm

impedance and be rated to handle at least 4.0 watts.

When the external speaker is plugged in, the internal

speaker is automatically disconnected.

Power

These wires supply power to the CB radio.This cable is

permanently attached to the radio. If you wish to

remove the radio after installation, disconnect at fuse

holder and ground connector.

Public Address

An external PA speaker may be connected to the PA

speaker jack when used as a public address system.

The speaker should be directed away from the

microphone to prevent acoustic feed-back. Physical

separation or isolation of the microphone and speaker

must be employed when operating the PA at high

output levels.

Rear Panel

Antenna Connector

External Speaker

Power

Public Address

Operation

Note

Cobra external speakers are

rated 15 watts

EXT

ANT

13.8V DC

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