Microphone; Procedure To Receive; Procedure To Transmit; Operation - Galaxy DX 979 Service Manual

2.2 MICROPHONE

The receiver and transmitter are controlled by the push-to-talk switch on the microphone. Press the
switch and the transmitter is activated, release the switch to receive. When transmitting, hold the
microphone two inches from your mouth and speak clearly in a normal voice. The radio comes
complete with a low impedance (500 ohm) dynamic microphone.

2.3 OPERATION

2.3.1 PROCEDURE TO RECEIVE

1. Be sure that the power source, microphone and antenna are connected to the proper connectors
before going to the next step.
2. Press the POWER switch to apply power to the radio.
3. Set the VOL to a comfortable listening level.
4. Set the MODE switch to the desired mode.
5. Listen to the background noise from the speaker. Turn the SQUELCH knob slowly clockwise until
the noise just disappears. 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 weaker signals will
not be heard.
6. Set the CHANNEL selector switch to the desired channel.
7. Set the RF GAIN control fully clockwise for maximum RF gain.
8. Adjust the CLARIFIER control to clarify the SSB signals or to optimize AM signals.

2.3.2 PROCEDURE TO TRANSMIT

1. Select the desired channel of transmission
2. Set the MIC GAIN control fully clockwise.
3. If the channel is clear, depress the push-to-talk switch on the microphone and speak in a normal
voice.
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