I can vouch for this, my parents house in Shamokin is on the hill across from the protection tower, almost line of site, I just have to get his neighbors to cut the roof off their houses.
I had a nice strong signal there, 4 out of 5 lights on my clear modem.
I was able to get 7+ mbps down with the clear modem in Shamokin, much better my dad's DSL line.
Do they normally use that nice of a backhaul with a protection site?
Patrick