Personally, I would not bother with it. Even if it does work, it will only work with DirecTV and you will not be able to receive ANY programming in HD via the dome. The antenna is too old to work with DISH. If you are replacing your equipment at home, personally, I would buy a Winegard Trav'ler (I prefer DirecTV for service but both services are very good). If you buy a Trav'ler for DTV and change your mind in the future you can swap it over to work with DISH. However, if you buy the DISH version there is no conversion option to go to DirecTV.
No, you can't use it while driving down the road but when you are parked and push the button to let it lock onto the satellites you will get the EXACT same service that you would get if you were sitting at home (other than Network programming, the one possible DISH advantage).
Just move your receiver from the house to the RV and take off!
