I agree that using the camper's wiring is a likely source of problems. Back before the TG came out we used the standard Dish sat. In standard def days it was easy to aim but by the time we got a camper HD was in use. I couldn't get it aimed, called a Dish tech who aimed it and told me to bypass the camper's wiring as "most" of the time satellite TV has problems with it. He said cable usually worked. So I've follwed that advice on two campers so far, running the cheap cable that came with the TG straight into the camper and the receiver. Never had a problem, and we use it for several months at a time in the winter.