fabionet31
Well-Known Member
Hi,
i have one Icom IC A21 portable radio system, i try to connect the external PTT switch
i connect the ground with 22k resistence on the PTT/mic in, and the radio work in TX
but the voice mic is null!
i see this circuit: http://www.xcom-usa.com/faq/XCOM-A20-ICOM-Modification.jpg
i try to connect only 22k resistance, not capacitor and 1k resistance
i have one Icom IC A21 portable radio system, i try to connect the external PTT switch
i connect the ground with 22k resistence on the PTT/mic in, and the radio work in TX
but the voice mic is null!
i see this circuit: http://www.xcom-usa.com/faq/XCOM-A20-ICOM-Modification.jpg
i try to connect only 22k resistance, not capacitor and 1k resistance