Highfields Amateur Radio Club
Constructors Corner. smoking soldering iron
copyright date

Icom Microphone Pin Outs.
For: IC-FR3000, IC-FR4000, IC-FR4100.

Never ground pin 1 or damage to the regulator will occur.

8 pin Modular Pin Signal
connector 1+9v DC 10mA MAX
2I/O port for PC programming
3No Connection
4M PTT (input port for TX control)
5Mic Ground
6Mic Audio
8M MONI (input port for monitor control)

Icom Index Page.
Microphone Wiring Index Page
or Sitemap.