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Yes Rabbit, I am 2 blocks east of the 2nd attachment.
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OK, I think I got it now. Thanks for the further INFO. See attachment 1.
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I have a DIY bowtie on my rear tower fixed at due North w/ something like an old CM Spartan, about 100' away.
My front tower has a 91XG, rotor and a Winegard AP8275 and a bout a65' run.
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Nice setup, Craig. You must have a lot of fun with it.
I see trees to the north and power lines to the south, that might be a problem. Your strongest TV signal is WLS with a signal power of -40.7 dBm which allows you to use a preamp for DXing, but your FM signals are stronger so you do need FM attenuation.
Fortunately, the two strongest FM signals are from the SW and NW, so your TV antenna patterns help you when hunting N, E, and S.
All external FM filters are not the same. You have to check the frequencies of your strongest FM signals and pick the best filter for that part of the FM band. A HLSJ often makes a good FM filter because it blocks everything below TV channel 7, including the FM band. See attachments 2, 3, and 4.
When you are hunting for weak ones, you are limited by your strong signals to a certain dynamic range between the two. Strong signals can cause fundamental overload which creates distortion products. But two or more strong signals can create IMD products called spurious signals, or spurs for short, that can wipe out your weak signals. See attachment 5.
Good hunting!
Best regards,
rabbit