Using a radioshack clip-on-yagi (I do have pine trees blocking my line of sight to transmitter) But, I'm only about 20 miles away.. on windy days signal goes from 0-to-69-to-77-to-0 would a bow-tie antenna help? I am using diplexers, only because I can't run a seperate line to my stb...many other stations are rock solid, including an abc station 56 miles away! Any ideas would be appreciated!