I have a bat wing on the roof, with a boost inside the coach. It kinda works, but not all that great. Also have a satellite on the roof that does nothing & nobody around here knows anything about it...
I would check on the satellite antenna to see if it works or what is the problem with it. It is much better then any batwing antenna. Batwing antenna's are only good if you are close to a city where it can pick up the tv air waves. Satellite you can pick up anywhere in the country.
I have the KingDome with Direct tv and we love it. Had Dish before and it was OK, but not as good as Direct tv.