14
Icom F-320, F-420, F-520, F-620
:
Open jumper A to open the radio’s TX path, jumper B to open the radio’s RX path, and jumper C to open the
radio’s PTT path. The unit plugs into the options connector located on the main board.
Icom F-1020, F-2020
:
Open jumper MIC to open the radio’s TX path, jumper AFO to open the radio’s RX path, and jumper PTT to open
the radio’s PTT path. The unit plugs into the options connector located on the main board.
Icom F-1720, F-1820
:
Open jumper “IO MIC” to open the radio’s TX path, jumper “AF OUT” to open the RX path. Additionally close CP-
37. The unit plugs into the options connector located on the main board.
