John, I have my 80M 4 square inside my 160M 4 square. I have a relay box
at the feedpoint of each 160M vertical. When I'm on 80M the 160M
verticals are automatically grounded. There is a huge difference in
performance when shorting the 160M verticals on the 80M 4 square. The
funny thing is I never had this coupling problem when I used a 160M
parasitic array.
Peter
W5PS
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