ALAN 8001S EURO
ALAN 8001S EURO
ALAN 8001S EURO
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E N G L I S H<br />
ROGER BEEP<br />
When your transceiver is in normal operation, your radio automatically trasmits the audio<br />
signal at the end of your transmission. The listener can note easily that your transmission<br />
is over through the signal. Please note that this ROGER BEEP transmits 0. 5-second at<br />
the moment PRESS-TO-TALK SWITCH KNOB is turned off.<br />
Fig. .<br />
ALTERNATE MICROPHONES AND INSTALLATION<br />
For best results, the user should select a low-impedance dynamic type microphone or a<br />
transistorized microphone. Transistorized type microphones have a low output impedance<br />
characteristic. The microphones must be provided with a four-lead cable. The audio<br />
conductor and its shielded lead comprise two of the leads. The fourth lead is for receiving<br />
control, and third is for transmitting control. The microphone should provide the functions<br />
shown in the chart below.<br />
4 WIRE MIC CABLE<br />
VOICE VOCE<br />
P.T.T. PRESS ATTIVO TO TALK ON P.T.T. PRESS RILASCIATO TO TALK OFF<br />
Pin Number Mic Cable Lead<br />
Audio Shield<br />
2 Audio Lead<br />
3 Transmit Control<br />
4 Receive Control<br />
1 2<br />
4 3<br />
BEEP<br />
O.15 Sec<br />
TX<br />
Fig. 2. Your transceiver microphone diagram<br />
8<br />
TX<br />
RX<br />
MIC
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