I have two IC-F121 radios, (the 128 channel version, not the S models), both with ICOM OPC-617 cables, and I have two DB9 connectors, wired to make a repeater. I have programmed them, and the receive radio does key up the transmit radio, and the transmit radio is sending out the CTCSS subaudible tone. Problem is, there is no repeated audio from the transmit radio. If I key the radio with a mic, there is audio. The wiring between the OPC-617 cables is as follows: pin 3 to pin 4, pin 5 to pin 6, 7 8 and 9 go to corresponding pins 7 8 and 9. I read about jumpering jumper F on the MAIN board.
No audio passed thru from receiver to transmitter. I have the IC-F121 service manual and from what I see, I have jumpered the proper jumper.
Any help greatly appreciated. 73, Bob
No audio passed thru from receiver to transmitter. I have the IC-F121 service manual and from what I see, I have jumpered the proper jumper.
Any help greatly appreciated. 73, Bob