Icom IC-2200H Mic Connector

1    +8v
2    Frequency Up/Down
3    +8v switched (used as Charge control for HM-90/A). Not IC-7000
4    PTT (connect to pin 7 for TX)
5    Mic Ground
6    Mic Audio
7    Ground (PTT and other functions)
8    Data in from microphone

Menambah Sensitivitas Receive (RX) Icom IC-2200H

Resistor R.195 (100k) diganti dengan 47k atau ganti VR
Skema JIG

source: tidak diketahui