Hi pbd3mon,
Going on the cheap with OTA reception often doesn't yield great results.
The positive is you have a nice radar plot and successful reception shouldn't be a hassle. I'd mount an Antennacraft HBU11K
http://www.solidsignal.com/pview.asp...t-%28hbu11k%29 above the roof orientated to magnetic 327 free and clear of as many obstructions as possible. I would not encourage attic installations. Attics introduce a multitude of unpredicable elements and can cause the loss of reception of even green shaded signals. Would you want to go through all this work in the attic to have NBC be unreliable?
The best chance at the reliable reception you want is mounting the antenna outside.
The HBU11k is a tremendous value that you get the antenna and J-Pole to mount it on for roof installation. The HBU11 provides the high-VHF and UHF band coverage you'll need.
With your reception plot, it's reasonable to expect nearly all the Detroit broadcasts to be reliable and strong.
Go spend a few bucks and get out of the doghouse.
LOL
