First thing there is no such thing as a h.d.t.v. antenna a good standard antenna is all you need Make sure you are running 75 ohm cable from your antenna to your t.v. then watch the meter on the screen and turn antenna until you get maximum reading My picture locks in at about 72. once you lock in 1 channel do a digital scann to get the other stations in my case I live in San Jose ca. and with a cheap 20 ft antenna I receive 18 local digital stations 9 of which are in hi-def and Iam about 60 miles from san francisco also sometimes I loose my stations the broadcasters are always playing with there transmitters good luck
I just tried installing a Terk HDTV outdoor low profile antenna. Played around with the direction and angles every which way and could only get about a 65 signal, and some channels would not come in at all. I am 19.3 miles from the transmitter - I think it is beyond the range of the Terk.