Operation •

Turning on Your Mobile Radio

Turn the On-Off/Volumeknob clockwise to turn
the power onand set the desired listening volume.

CB Antenna

Only a properly matched Antennasystem will
allow maximum power output. In mobile installations
(cars, trucks, boats, etc.), an Antennasystem that is
non-directional should be used. When installed in a
boat, the transceiver will not operate at maximum
efficiency without a ground plate unless the vessel
has a steel hull. Before installing the transceiver
in a boat, consult your dealer for information
regarding an adequate grounding system.
NOTE
Cobra loaded-type antenna models HGA 1000,
HGA 1500 and HGA 2000 are highly recommended
for most installations. Consult your Cobra dealer
for further details (or see order form on page 17).
Three-way combination antennas are available
which allow operation of all three bands (AM-FM
and CB), using a single antenna. However, use
of this type of antenna usually results in less
than normal transmit and receive range when
compared to a standard-type “Single Band”
antenna designed for CB only.

Microphone Connector

Allows for convenient removal of the Microphoneplug
when storage is required. The MicrophoneMUST be
connected to the unit at all times, when in use, for
proper operation.
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Operating Your Mobile Radio
5
Nothing comes close to a Cobra®
4English
Operation
Operation •

Antenna Connector

This female Connectoron the rear panel permits
connection of the transmission line cable male
connector to the transceiver.

External Speaker

The external speaker jackon the rear panel 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.
NOTE
Cobra external speakers are rated 15 watts.

Public Address (PA)

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.

Power

These wires supply Powerto 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.
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On-Off/Volume Knob
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Operation
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Operating Your Mobile Radio
Microphone Connector
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Antenna Connector
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External Speaker Jack
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PA Speaker Jack
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Power Cable
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