I have a dish network Wally receiver in the main cabin of the coach and another in the bedroom. The forward receiver works great. The rear receiver only gets a small portion of the channel lineup and will freeze frequently. I believe my issue is old rg59 cable that can’t handle the newer technology. It appears to be a minor miracle to run new cable in this coach, so my question is; how can i transmit my good signal in the forward part of the coach wirelessly to the rear of the coach? The TVs are both digital. Now, let me have it.