The same author has an explainer of Sporadic-E and skywave propagation here:<a href="https://www.radioworld.com/columns-and-views/double-hop-dreams-and-the-mystery-of-long-distance-fm" rel="nofollow">https://www.radioworld.com/columns-and-views/double-hop-drea...
ilamont · · focus · HN ↗
<a href="https://www.radioworld.com/columns-and-views/double-hop-dreams-and-the-mystery-of-long-distance-fm" rel="nofollow">https://www.radioworld.com/columns-and-views/double-hop-drea...