Originally Voom had said they could use a 13" Dish. But, when you start to get really tiny dishes you run into rain fade quickly. Larger dishes give you much more cushion. One of the debates now at the FCC is if they can move from 9 degrees down to 4.5 or even 3 degree spacing on DBS satellites. This would open up more slots over the CONUS, but would the existing dishes still work ok?