CRT SS 3900 N Owner's Manual

DESCRIPTION
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N
40 CX AM - FM - SSB
VERSION CITIZEN BAND
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1. MICRO CONNECTOR 4 PIN
2. ON/OFF VOLUME CONTROL - SQUELCH CONTROL
This Knob controls the volume and power to the radio. To turn radio on, rotate the knob clockwise.
Turning the knob further will increase the volume of the receiver.
SQUELCH CONTROL
This switch is used to eliminate background noise being heard through the receiver, which can be
disturbing when no transmission is being heard through the received. To use this feature, turn the
switch fully counterclockwise and then turn clockwise slowly until the background noise is just eli-
minated. Further clockwise rotation will increase the threshold level, which a signal must overcome
in order to be heard. Only strong signal will be heard at a maximum clockwise setting.
3. MIC GAIN CONTROL - RF GAIN CONTROL
MIC GAIN CONTROL :
Adjust the microphone gain in the transmit modes. This controls the
gain to the extent that full talk power is available several inches avay from the microphone.
RF GAIN CONTROL :
This control is used to reduce the gain of the RF amplifier under strong signal conditions.
4. BAND A.B.C.D.E.F.
Command not operante - for future option.
5. MODE AM-FM-BLU
Allows to select modulation mode.
6. CLARIFIEUR
Potentiometer of regulation of the quality of the reception in SSB.
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7. CHANNEL SELECTOR
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This control is used to select a desired transmit and receive channel.
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