Operation, Operation • operating procedure to receive, Operating procedure to transmit – Cobra Electronics 19 DX IV User Manual

Page 7: Operation • ignition noise interference, Temporary mobile operation

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9

Nothing comes close to a Cobra

®

8

English

Operation

Operating Procedure to Receive

Be sure that power cord, antenna and microphone

are connected to the proper connectors before

proceeding further. The CB/PA switch should be

in the CB position.

To receive:

1. Turn the radio on by rotating the

On-Off/Volume knob clockwise.

2. Rotate the Squelch/RF Gain knob

counterclockwise until incoming

signal is heard.

3. Select the desired channel.

4. Set the On-Off/Volume knob and the

Squelch/RF Gain knob to a comfortable

listening level.

Operating Procedure to Transmit

Be sure the antenna is properly connected to the radio before transmitting.

Prolonged transmitting without an antenna, or with a poorly matched

antenna, could cause damage to the transmitter.

To transmit:

1. Select the desired channel.

2. The receiver and transmitter are controlled by

the Press-to-Talk switch on the microphone.

Press the switch and the transmitter is activated;

release switch to receive. When transmitting

(on a clear channel), hold the microphone

two inches from the mouth and speak clearly

in a normal voice.

Operation

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 authorized Cobra dealer or a two-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.

NOTE

Red Wire is connected to positive side

of socket center tip. Black Wire is connected

to negative side contacts.

Radio resets to CH 9 when connected to

cigarette lighter plug.

When using the unit with cigarette adapter,

turn off when not in use to avoid draining

the battery.

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

EXT

ANT

13.8V DC

PA

Temporary Mobile Operation

Press-to-Talk Switch

On-Off/Volume Knob

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Adjust Squelch/RF Gain Knob

Intro

Operation

Customer
Assistance

Warranty

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Intro

Operation

Customer
Assistance

Warr

anty

Notice

Main Icons

Secondary Icons

Caution

War

ning

Installation

Customer
Assistance

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

Operation

Operation

Intro

Operation

Customer
Assistance

Warranty

Notice

Secondary Icons

Caution

Warning

Installation

Customer
Assistance

Operating Your Mobile Radio

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