Could someone tell me the length of top loading wires (4 wires planned) needed to add to the top of a base insulated 90 foot Rohn 25g tower to maximize the radiation resistance on 160 meters. I understand there is a point of diminishing returns on the top loading lengths. The 4 wire angles will be around 45 degrees or as close as possible. If I knew how to model ,or even had a modeling program, I would attempt this already relatively simple task to many. From 50+ years of practical experience, I am ‘guessing’ maybe 28 feet long each?
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