Codan 9350 Inputs and Outputs - lawrencebillson/VX-1700-Codan-9350-ICOM-Tuning-Adaptor GitHub Wiki

From the 9350 information page we get these pinouts:

15 pin D 6 Pin Mil. Connector Configuration

12, 13 A +12VDC

14,15 B GND

4 C TUNE

5 D SCAN

11 E IND

Tuning cycle

As best as I can tell - this is how a 9350 and Codan radio communicate:

  • The radio pulls the TUNE line low
  • The antenna holds the TUNE and IND lines low
  • The radio sends RF down the line
  • The antenna tunes
  • The radio sends a pass or fail signal

The pass signal: IND = high, then TUNE = high

The fail signal: TUNE= high, then IND = high