I just received an H21 from a friend. I'm going to use it when I go to football games so I have something to watch when I'm out in our parking lot before/after the games. I have several old dishes and new ones, same with the LNB's from the years (2 line/3 line) and I have some of those bband converters. DirecTV is sending me a new access card so I can turn it on, but what exactly do I need to make it work in the parking lot? Which Dish, LNB and will I need the bband, and what settings when I get it fired up? Thanks!