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Mr. Clean I have commented that I have seen such responses before, but it was with local horizontal signals only. I have never been able to detect the same difference with DX signals however. The response I saw was dramatic like you might see switching polarity on a beam sometimes. If that was not the case, then I would not make such comments. Since it doesn't happen with DX signals, it makes me unsure of what the cause was.

 

If you have a AP plus another vertical setup with a switch box, and you have a bud with a horizontal beam, you might try to duplicate what I did. Needing several antennas up and working complicates being able to see these affects. Not many operators will have the antenna setups necessary to test, so don't get all excited about it. If this happened when DX was working, I would really be sounding off about it.

 

If you think you might have such a setup and a buddy to test with, then let me know and I will give you the details of exactly what I did.