With the eastern arc, which satellite does it point to? I just wanted to check out the dishpointer site to see if this would work on my home. I think that I might have line of site issues with a dual dish system, just looking around my neighborhood at other people with dish, and the direction that they are pointed. I am located in Matamoras PA, which is north eastern PA. If I call to order dish, do I have to ask for Eastern arc, or do they bring everything, and install what is best?