A buddy of mine gave me his Dish Network 500 Dish and electronic box, since he is going out of the country. I am planning on using the dish and the box for my race car trailer. He's calling D. N. tomorrow and everything will be changed over to my name. I currently have cable at the house, so am not sure what hardware I would need to hook the dish up in the trailer. I found a tri-pod on the Camping World website, which would work best for me right now. Looking at the dish, it's got two "guns" and two cables coming out of each gun. Two of the cables terminate at a small metal box and the other two terminate at another identical metal box. I would suppose that I only need to hook one of these metal boxes up to the electronic box? I think the two "guns" is so the dish can provide a signal to two seperate TV's? The back of the dish has a bracket that looks like it would let it mount directly on the pole of the portable tri-pod. But what if I decide to use this on top of my house? Is there some mount with a pole I can put on my chimney?