TopBand: Propagation

[Pierre PETRY]

Hello top band friends

I worked this morning KA7T for my last state for 160m. WAS
thanks very much Don.

I have been very surprised to find very very good conditions
this morning, have worked  N7UA  K7CA  N7JW  KA7T  W7LR.

How to explain very good condx with WWV index SF=75   A=24   K=4  ??

I often noticed poor condx with   A=1 or 2    and K=0   !!!

That means  WWV index is not all, something else make good or bad condx.

Very 73
Pierre HB9AMO

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