Kenny:
I realize this is an old post and you might have solved the problem, but there might be others in the same boat.
This is the Winegard site.
http://www.winegard.com/The antennas I use for most of my HDTV installs is either the Radio Shack model Cat.#: 15-2162 , costs about $40, or the smaller brother for about $30 Cat.#: 930-0193. These work well when you're close in (approx 0-10 miles, depending on terrain, transmitter power, etc), where directionality is more important and signals are splattering off everything. In the woods, out to about 30-50 miles, + or -, I use this "bedspring" for distance #3021
[Link: starkelectronic.com]made by Channel Master, costs about $30. I don't use the Winegard simply because my supplier doesn't carry it, but if it looks similar, would be fine. Also found the long amplified Terk to be marginal at best. The key I've found in many installs is it's not the signal level that's the problem, but signal to noise ratio. I've had Mitsubishi sets, notoriously finicky, work with signals below the -44db threshold of my meter on a super "clean" signal, would've bet the farm they wouldn't, blew me away ! The same set with a "dirty" signal would barely work at +10 and quit again at +15. But with the antenna mis-aimed about 20 degrees, so it only saw a few splattered signals, it worked fine at any setting from -20 to +20. Digital decoders only have so much buffer space for junk signals, and have to weed through to find one clear one. If there's a lot of signal level from another UHF station, then usually some harmonic will be strong enough to cause the decoder grief. If you can mis-aim the antenna enough to attenuate the hot station, and still pick up some of the HDTV station, you're on. Without a signal strength meter, it's tough to sort out. You can fake it if you know who the other stations are and where the transmitters are. You can also amplify the signal, if too far away, but be sure to trap out the VHF stuff before the amp or you'll just increase the noise and problems.
There's a lot more, but you get the idea. It's VERY different from receiving analog TV signals. Be glad to help if you need more info. Shoot me a note with questions.
