I am new to this forum and have a question about a problem I am having when I hook up a second receiver to my Dish Network dish that is on the eastern arc satellites. I live in my RV and when I am at my home place I have a building that my satellite dish is mounted on that I hook up to when I am parked here. I also have a tv and vip211 receiver in the building that I want to hook up to the same dish, but when I do it messes up the signal to my RV. When the tech mounted the dish to my building he ran two cables from the dish and one is hooked up to my RV with the other not being used. What am I missing here? Do I need something else to run to receivers off this dish? Thanks for any help!!