Connection To A Microphone; Connection To A Pc - AOR ARD9800 Instruction Manua

Connection to a Microphone

A speaker microphone is included with your ARD9800. However, if you wish to use your own
microphone with the ARD9800, you may do so by wiring your microphone to correlate with the input
jack of the ARD9800. Below are the pin assignments of the Microphone connector of the ARD9800.

Connection to a PC

A PC interface cable is included with the ARD9800.
Parameter settings can be made by using terminal software.
Refer to Control Commands at page 23 for details
1. Speaker output
Monitor output signal is present at this pin.
2. BIAS
Power source for an electlet condenser type of microphone.
5V DC through 2.2K ohm of resistor
3. GND
Chassis ground
4. TX
T aking this pin to the ground will enable to transmit.
(Same operation as the TX switch on the front panel.)
5. D/A
T aking this pin to the ground will force the ARD9800 to the Digital voice
communication mode.
When this pin is left open, the operation mode will be set by the mode switch on
the front panel.
6. MIC PTT
PTT (Push T o T alk) input.
7. MIC GND
Microphone ground signal
8. MIC IN
Microphone signal input
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