Futaba T12K manual link:Is it possible to connect my futaba T12K transmitter via USB to use it on RF9 If so what do I need.
Yes, and no. Yes, you can use the RX2sim device to go wireless; but no, I don't think you can attach it directly to your futaba. (I have not tried either)You can use one of *these*
I *think* you can simply connect a 3 wire servo/SBUS cable to it from your Futaba.
But I have not tested it.