From my testing at my location (which is fairly flat, without any huge trees immediately nearby), a Winegard YA-1713 (for VHF-high) and an Antennas Direct 91XG (for UHF) will receive most stations down to about -9.0dB NM (sometimes even a little lower) on my TVFool report with no amplifier, if mounted outside at chimney height (maybe 20 feet above ground). This is somewhat down into the grey part of my TVFool listing. That antenna combination is often recommended for deep fringe situations, and it would look exactly like the photo in post #17 by No Static At All. If you do not have any nearby stations to cause an overload situation, adding an amplifier might help further. Kitztech just came out with their new very-low-noise (0.4 dB)amplifier, but I haven't heard any test results yet. Research Communications in the United Kingdom also has some very-low-noise amps (also 0.4 db), although those are more expensive. Many people in rural areas have good success with the Channel Master 7777 amp. So, depending on how far down those 89-mile Chicago stations are on your TVFool report, you might have a chance (perhaps they might come in better at night than in the daytime).
See the links below:
Antennas Direct 91XG UHF TV Antenna (91XG) - Antennas Direct - 91XG - 853748001910
Winegard YA 1713 Prostar 1000 10 El. Hi-Band VHF TV Antenna (YA-1713) - Winegard - YA-1713 - 615798304867
Ultimate Television Antenna Signal Booster! Guaranteed!
HDTV Low Noise Amplifiers and Preamplifiers, Preamps, NF 0.4 dB - Research Communications Ltd UK
Channel Master CM 7777 Titan 2 VHF/UHF TV Antenna Preamplifier with Power Supply High Gain Mast Mount CM7777 Booster Pre-Amplifier Off-Air HDTV Amp Local Signal Aerial Antenna Booster, Part # 7777: Oak Entertainment Centers and Home Office Furniture,
See the links below:
Antennas Direct 91XG UHF TV Antenna (91XG) - Antennas Direct - 91XG - 853748001910
Winegard YA 1713 Prostar 1000 10 El. Hi-Band VHF TV Antenna (YA-1713) - Winegard - YA-1713 - 615798304867
Ultimate Television Antenna Signal Booster! Guaranteed!
HDTV Low Noise Amplifiers and Preamplifiers, Preamps, NF 0.4 dB - Research Communications Ltd UK
Channel Master CM 7777 Titan 2 VHF/UHF TV Antenna Preamplifier with Power Supply High Gain Mast Mount CM7777 Booster Pre-Amplifier Off-Air HDTV Amp Local Signal Aerial Antenna Booster, Part # 7777: Oak Entertainment Centers and Home Office Furniture,