Ignition Noise Interference; Temporary Mobile Operation; Operating Procedure To Receive; Operating Procedure To Transmit - Cobra 19 ultra III Owner's Manual

Operation
Operating Your Mobile Radio
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
Temporary Mobile Operation
Red Wire is connected to positive side
of socket center tip. Black Wire is connected
PA EXT
ANT
13.8V DC
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.
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
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8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281
Operation
Operating Your Mobile Radio
Operation
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Operating Procedure to Receive

On-Off/Volume Knob
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.
Adjust Squelch/RF Gain Knob
2. Rotate the Squelch knob
counterclockwise until incoming
signal is heard.
3. Select the desired channel.
4. Set the On-Off/Volume knob and the
Squelch 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:
Press-to-Talk Switch
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.
•
For Sales Information Please Contact RoadTrucker Inc (www.RoadTrucker.com)
Nothing Comes Close to a Cobra ® 9
8312 Sidbury Rd.; Wilmington, NC 28411 - (800) 507-0482 / (910) 686-4281