I live in Pekin,IL area that has strong signal with local broadcasters but I am interested in getting some broadcast out of the quad cities. I pulled a report and it seems if I have the proper antenna I should be able to reach them. Here is the link.
CBS in the Quad Cities is on low band channel 4 with a weak signal for low band. That will require a Winegard 8200U or HD 7084P mounted as high as possible. That antenna will also get the UHF stations in the same direction. For only the UHF stations at 323 degrees a 91 XG would do fine. You can't use a preamp at your location.
WQAD is the one iffy UHF channel. That's because it is adjacent to one of your local channels and 52 db weaker. You'll need some of the excellent front to side ratio of the 91 XG and a good TV set.