My theater is in an extra room in my attic. I am having a terrible time with RF interference. I do have an old rusty transformer on a pole in my front yard! Any ideas on what I can/should do to try to get better RF performance in this situation. Will the RFX-250 help?

I'll answer my own question. I got a RFX-250, put it in my system, and no more problems. More range than I need, near 100% reliability.