I asked a question in the Gen. Dish Forum about this same thing (sorry for the dup, but thought the 921 group would see it better here).
If I use a DPP44 switch to hook up 3 dishes (Dish 500: 110/119, Dish 300 for 61.5 & 148 -- all using DishPRO LNBs), I KNOW that I can hook up this switch for...