I noticed that too, which was one thing that had me leaning toward it being a tuner problem. But I can't really understand the co-channel issue. Looking at the radar plot, there is nothing in that direction to interfere with. And I definitely have a directional antenna, so I find it hard to believe that there is a co-channel problem.
Channels 8, 10, and 12 have co-channels about 123 degrees apart, with significant signal strength differences, so I have a hard time believing that is the problem. I am simply stumped.
By the way, as a newbie here, I really appreciate all the info on this site and all the help the regular posters provide. It is definitely useful and appreciated!
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