i have a winegard 8200u vhf/uhf antenna - and i get ch4 at 88%, 80+ miles away here in burlington.. that uhf antenna might get it up there, but that would be luck of the draw. if you installed a vhf/uhf antenna - you would get it everytime..
I have a Square Shooter and live in NE Davenport and get 4 at 100%. My daughter has a square shooter, lives a half mile away in Bettendorf, and gets it at 77%. It really is the luck of the draw.