I want to control an RCA Satellite box remotely from the TV IR remote. I have tried the Rotron and RCA IR to RF systems and they don't work reliably. I want to have the IR signal on the coax to the Satellite box and a box which is in series with the coax which stripped off to an IR emitter that sticks on to the RCA Sat box. I saw a system like this but cant find them. I think it was by Xtra Link 2. Help.....