Forget the distance (which was an easy 2.75 miles) my brand new DMB antenna booster powers the signal through very thick tree cover. In the past, once my P3P would get behind a thick stand of trees the signal would suffer. With the new antenna mod I never even as much as dropped a bar! HIGHLY recommend these guys if not simply from a safety stand point. I had them do the installation, I didn't have the guts to do it!