LQ/FOR-22 DB9 to ICOM M803
Connecting an ICOM M-803 to an FOR-22 or LQ 4WG2 is straightforward.
Ensure the Relay/GPO on the LQ/FOR-22 is firing as expected.
Create a cable as follows. Use of a terminal block to DB9 adapter will make this easier:
LQ DB9 | ICOM M803 DB9 |
1 AUDIO OUT+ | 1 MOD + |
2 AUDIO IN + | 4 AF + |
3 N/C | N/C |
4 N/C | N/C |
5 PTT | 8 SEND |
6 AUDIO OUT - | 2 MOD - |
7 AUDIO IN - | 5 AF - |
8 N/C | N/C |
9 GROUND | 3 GROUND |
In the ICOM M803 menu system, set Remote > MOD to AF/MOD as follows:
ICOM Menu
If using a standard ICOM cable already connected to the radio, the pinout (from the radio’s perspective) is as follows:
1 MOD + | Black | 1 AUDIO OUT+ |
2 MOD - | Brown | 6 AUDIO OUT - |
3 GROUND | Red | 9 GROUND |
4 AF + | Orange | 2 AUDIO IN + |
5 AF - | Yellow | 7 AUDIO IN - |
8 SEND | Gray | 5 PTT |