OPC-478 can it be made to work with the 621?
OPC-478 can it be made to work with the 621?
I have an OEM factory OPC-478 serial cable. I notice Icom has a different style cable for the 521/621 mobiles. Is it possible to build a simple adaptor from the 1/8 plug on the OPC to the RJ-45 or is the data format different?