Great question, Craig! I asked this question a few months ago here: ham.stackexchange.com/questions/8940/what-is-the-cause-of-this-unusually-long-period-of-terrible-hf-band-conditions
It is NOT what the answers there claim. I have done extensive research on this. And when I get the time and motivation again, I'll share what I have found. 73, Mike www.w0btu.com On Nov 15, 2017 7:29 AM, "Craig Clark" <jccl...@myfairpoint.net> wrote: So, what IS going on? Why has propagation on Top Band (and other bands) been so poor? An inquiring mind would like some "ed-u-macation." I missed K9LA's presentation at W9DXCC this year. Craig Clark K1QX _________________ Topband Reflector Archives - http://www.contesting.com/_topband