Cobra Electronics 150GTLDX Indicators and Microphone Operating to Receive and Transmit

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Indicators and Microphone

Operating to Receive and Transmit

Your Mobile Radio

Indicators

- -

 

4Analog Meter

 

Your Mobile Radio

Operating to Receive

To begin operating your radio:

The meter needle swings proportionally to the strength of the incoming signal or RF output power in receive or transmit modes.

When used to tune the antenna or monitor the quality of the coaxial cable and

RF electrical connections, the needle swings proportionally to the ratio of standing wave ratio and RF output. If there is any degradation in these, due to humidity, salt, spray, vibration or corrosion, the SWR meter reading will rise, thereby indicating that a problem exists.

- -4RX / TX Indicator

This indicator glows green when in receive mode and red when in transmit mode.

- -4Antenna Warning Indicator

This indicator glows red whenever the standing wave ratio is greater than 3 to 1.

Microphone

1.Be sure the power source, microphone and antenna are properly connected.

2.Turn the unit on by turning the volume knob clockwise and set the volume for a comfortable listening level.

3.Set the PA / AM / FM switch to the desired AM or FM.

4.Set the RF gain control fully clockwise for maximum RF gain.

5.Listen to the background noise from the speaker, then turn the squelch ring slowly clockwise until the noise just disappears (no signal should be present). Leave the control at this setting. The squelch is now properly adjusted. The receiver will remain quiet until a signal is actually received. Do not advance the control too far, or some of the weaker signals will not be heard.

6.Select the desired frequency with the band and frequency selector knobs.

7.Adjust other controls as desired.

The receive and transmit modes are controlled by the Press-To-Talk (PTT) switch

on the microphone. Press the switch to transmit, release it to receive. When transmitting, hold the microphone two inches from the mouth and speak clearly in a normal voice.

Operating to Transmit

To transmit a signal:

To substitute for the supplied low-impedance (500 ohm) dynamic microphone, see the alternate microphones and installation section on page 17.

1.Select the desired frequency for transmission if different from the one chosen to receive.

2.Set the microphone gain knob fully clockwise.

3.If the frequency is clear, depress the Press-To-Talk switch on the microphone and speak in a normal voice.

 

 

 

 

14 English

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Contents GTL DX FCC License Required Our Thanks to You FCC License RequiredOur Thanks to You Microphone Controls and Indicators Microphone and FeaturesControls and Indicators FeaturesYour Mobile Radio ContenProductsFeaturesWarranty IntroductionSpecifications SpecificationsIncluded in this Package Installation and ConnectionInstallation and Connection Included in this Package4Antenna 4Tuning the Antenna for Optimum SWRAntennas with adjustable screws setscrews 4Ignition Noise InterferenceControls Installation and Connection OperationControls Operation4Talk Back 4Dim4NB/ANL / ANL / Off 4EchoFrequency FrequencyOperating to Transmit Indicators and Microphone Operating to Receive and TransmitIndicators Operating to ReceiveAlternate Microphones and Installation Maintenance and Government Regulatory InformationAlternate Microphones Installation MaintenanceAlternate Microphones and Installation Arrl Q Signals Arrl Q SignalsProduct Service Warranty and Trademark AcknowledgementProduct Service Limited Two-Year WarrantyOptional Accessories AccessoriesOrder Form Optional Accessories AccessoriesCobra line of quality products includes