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8
ROGER BEEP
When your transceiver is in normal operation, your radio automatically trasmits the audio
signal at the end of your transmission. The listener can note easily that your transmission
is over through the signal. Please note that this ROGER BEEP transmits 0.5-second at
the moment PRESS-TO-TALK SWITCH KNOB is turned off.
Fig..
ALTERNATE MICROPHONES AND INSTALLATION
For best results, the user should select a low-impedance dynamic type microphone or a
transistorized microphone. Transistorized type microphones have a low output impedance
characteristic. The microphones must be provided with a four-lead cable. The audio
conductor and its shielded lead comprise two of the leads. The fourth lead is for receiving
control, and third is for transmitting control. The microphone should provide the functions
shown in the chart below.
4 WIRE MIC CABLE
Pin Number
Mic Cable Lead
Audio Shield
2
Audio Lead
3
Transmit Control
4
Receive Control
Fig. 2. Your transceiver microphone diagram
VOCE
P.T.T. RILASCIATO
BEEP
O.15 Sec
TX
RX
P.T.T. ATTIVO
TX
MIC
1 2
4 3
VOICE
PRESS TO TALK ON
PRESS TO TALK OFF
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