I have a 622, Dish1000 and have marginal (50's) signal on sat 129. I have a left over 18' DirecTV dish and LNB that I was thinking about aiming at 129, and daisy chaining with the existing switch. Question: is the DirecTV LNB compatible with the Dish 1000 switch? Could I expect enough gain from the 18" dish to make this exercise worthwhile? Any comments would be appreciated.........Where can I find Az. and Elev. data for 129 and my 10/20? Thanks all....