Well Ok try the Winegard Metrostar MS2000 , it is the industry standard for the type and kind of antenna that it is it is the best there is.
http://www.winegarddirect.com. . . Please note that omni directional antennas are not truly omni , may need to turn it to find a good position and tighten it up so it will not turn. As I said before it is a good idea to get braodcast television antennas UP in the air , clear of obstructions.