Roger Beep; Alternate Microphones And Installation - Midland ALAN 8001S Manual De Instrucciones

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.
PRESS TO TALK ON
P.T.T. ATTIVO

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

2
3
4
1 2
4 3
VOICE
VOCE
O.15 Sec
PRESS TO TALK OFF
P.T.T. RILASCIATO
Fig..
Mic Cable Lead
Audio Shield
Audio Lead
Transmit Control
Receive Control
Fig. 2. Your transceiver microphone diagram
BEEP
TX
8
TX
RX
MIC