I live in a spot in SE Minnesota that the signal is extremely weak

It’s all-or-nothing but a weak and/or poor quality signal (and those are two different parameters) that is at or near the "cliff effect" threshold can result in an intermittent picture or one with constant or intermittent artifacts.

I’ve tried several indoor antennas and always had a few with weak signals

In the last two years, I figure I would get a good signal about 98%, but when I could not get anything for the last Patriots game due to something I know I needed to change.

I tried a separate pole on different parts of the roof and the only good, reliable signal I could get was due East 44 miles across the Chesapeake bay to WBOC Delaware

I tested both systems in the attic and the Winegard has about 5-10% stronger signal strength.

Great signal pick up in the attic of my home and very easy to assemble