"Frank's" wrote
What is interesting, in my preliminary results, is that there is
only a 2% improvement in sky wave total radiated power with
120 radials over 36
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Frank,

If what you are saying is that efficiency is the same for both 36 and
120 radials, then, at least at 8 MHz, B,L&E's findings for LF do not
apply at HF.

Amateurs do not use LF. They use HF.
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Reg.