Why is ATSC on VHF so damn finicky?

[bgadow]

I hadn't done a TV Fool report in a while; some interesting data to mine. Generally, the farthest distance I'm seeing are the Baltimore stations at 65.1 miles. I see a number of stations which have popped up in the deeper fringes that I didn't know about. Hmmm...could cause me to try Dx'ing some night.

I'm torn on ASTC. It means a lot more to watch than we used to have, and a whole lot clearer than my stepmother gets with her dish. But the pixelation-I know I'm asking a lot for some of these stations. I have a decent Winegard on the chimney with a booster and rotor. I'd have to add height to see much more of a difference & I don't think that's happening anytime soon.