I have a a HD dish and hd standard receiver but I do not subscribe to HD service nor do I have HD televisions. I have an older non-hd dish at my second home just down the road from where I subscribe to Directv. Can I take my hd receiver to my 2nd home and hook it up to my old dish? it is a RCA ds4121re dish. If this is possible, do I have to do anything different to set it up?