Dear MK (NM5K):

I do not understand. Why speculate? In the over forty years that I
have been involved with the prediction of HF propagation, huge progress has
transpired in the ease with which one may investigate the issues that seem
to be of interest.

Today, one may download and run a series of computer programs that will
provide statistically significant answers to your questions. The programs
have evolved over decades and are refined.
Go to:
http://elbert.its.bldrdoc.gov/hf.html

As Reg might say: ready to run.

Numbers tell the story. Enjoy.

73 Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
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