Topband: Solar Flux Question

[Bill Stewart]

Per WWV, the solar flux is at 91. What, if any, affect does this have on 
propagation in HF or other 
frequency bands....and of course 160 meters. I have seen these geophysical 
numbers often, but 
never really understood what they meant. The flux has been running in the high 
60s/low 70s until 
a few weeks ago when I saw it in the 80s. 
Tnx de Bill K4JYS 
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