I am having trouble getting directv hooked up because of no line of site. I found a place to put the dish that would be pointed thru some trees directly at the satellie. It will be pointed thru a "cutout" between a few trees. The opening will have about a 20' diameter and I am pretty confident that i can keep the branches trimmed back so future growth will not be an issue. Does anyone know if this size opening thru the trees is large enough to get a strong enough signal? Any info would be appreciated.