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/diy/ - Do It Yourself

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>> No.1766320 [View]
File: 232 KB, 1049x629, foF2-20200212.png [View same] [iqdb] [saucenao] [google]
1766320

>>1766299
>magnetism caused by sunspotting
you're confusing the issue. hf propagation relies on the electron density of the ionosphere, not on magnetism. sunspots indicate local magnetic activity on the surface of the sun which produces stronger UV radiation which in turn activates the ionosphere.

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