Bedienungsanleitung Cobra 150 GTL DX (Seite 8 von 17) (Englisch)

633035

Zoom out

Zoom in

Vorherige Seite

1/17

Nächste Seite

Nothing comes close to a Cobra

Controls

English

Installation and Connection

and Operation

Installation and Connection

•

If you are having difficulties in adjusting your antenna, check the following:

All doors must be closed when adjusting the antenna.

2. Make sure the antenna base is grounded.

3. Check your coaxial cable routing — it may be pinched where routed into the car.

4. Try a different location on your car — keeping in mind the radiation pattern you want.

5. Make sure the antenna is perfectly vertical.

6. Try a different location in your neighborhood. Stay away from large metal objects

(metal utility or light poles, fences, etc.) when adjusting.

NOTE

The radio will operate into a SWR of 2 to 1 indefinitely and sustain an

SWR of 20 to 1 for a maximum of 5 minutes at rated operating conditions.

4External Speaker

The external speaker jack (EXT) on the rear panel is used for remote receiver monitoring.

The external speaker should have 8 ohms impedance and be able to handle at least

four watts. When the external speaker is plugged in, the internal speaker is disabled.

4Public Address

To use the transceiver as a public address system, connect an external 8 ohm speaker

that is able to handle at least four watts to the PA jack on the rear panel. Direct the

speaker away from the microphone to prevent acoustic feedback. Physical separation

or isolation of the microphone and speaker is important when operating the PA at high

output levels.

Operation

•

There are 15 controls and 4 indicators on the front panel of your mobile radio.

These are shown in the illustration on page A2 which may be folded out for

reference when using this section.

Controls

•

4Off / On / Volume

Turn clockwise to apply power to the unit and to set the desired listening level.

During normal operation, the volume control is used to adjust the output level

obtained either at the transceiver speaker or the external speaker, if used.

4Squelch

This control is used to cut off or eliminate receiver background noise in the absence

of an incoming signal. For maximum receiver sensitivity, it is desired that the control be

adjusted only to the point where the receiver background noise or ambient background

noise is eliminated. Turn fully counterclockwise, then slowly clockwise, until the receiver

noise disappears. Any signal to be received must now be slightly stronger than the

average received noise. Further clockwise rotation will increase the threshold level

that a signal must overcome in order to be heard. Only strong signals will be heard

at the maximum clockwise setting.

4Microphone Gain

Adjusts the microphone gain in the transmit and PA modes. This controls the gain to the

extent that full talk power is available several inches away from the microphone. In the

Public Address (PA) mode, the control functions as the volume control for the PA speaker.

4RF Gain

Used to reduce the gain of the RF amplifier when receiving very strong signals.

4PA / AM / FM

Selects the mode of operation. In the AM and FM positions, the PA function is disabled

and the unit will transmit and receive on the internal speaker. In the PA mode, incoming

transmissions will be heard through the PA speaker. This allows you to monitor messages

while outside of your vehicle. To use the PA feature, a speaker having a voice coil

impedance of 8 ohms and a power handling capability of at least four watts should be

used. This speaker must be plugged into the PA SPKR jack at the rear of the transceiver.

If the public address feature is to be used primarily for outdoor applications, the use

of a weatherproof horn-type public address speaker is recommended. The durability of

this type speaker plus the inherent efficiency of such a speaker will provide more than

adequate results when combined with the high audio output level available from your

radio. With the PA speaker connected as outlined previously, be sure that there is physical

separation between the microphone and the speaker itself. If the speaker is located too

close to the microphone, acoustic feedback will result when the public address system

is operated at high volume. A directional-type outdoor speaker reduces the amount

of isolation required. Some experimentation will determine the minimum amount of

isolation required for a given sound level from the public address system.

NOTE

The microphone gain knob also controls the PA volume when in PA mode.

Your Mobile Radio Your Mobile Radio

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

Cobra 150 GTL DX Seite 8

Brauchen Sie Hilfe? Stellen Sie Ihre Frage.

Missbrauch melden von Frage und/oder Antwort

Art des Missbrauchs:

Forenregeln

Neu registrieren

Das Handbuch wird per E-Mail gesendet. Überprüfen Sie ihre E-Mail.

Ihre Frage wurde zu diesem Forum hinzugefügt

Info