Propagation near the greyline

screen-shot-2016-10-04-at-10-53-22

Output 30W J65-A on 4-Oct-2016: yellow on 20m, green on 30m, where are you heard? Of course within Europe and the Middle east, but also as can be seen on this plot along the greyline: East Siberia, East Brazil and Australia are near the greyline and apparently this is the path along which the 20m signal propagates. Nobody in Scandinavia north of us heard me, apparently because the MUF was below 14MHz for those regions. The greyline is where subset or sunrise occurs, probably there is a more fancy name like the terminator, but in hamradio lingo it is called the greyline.

All propagation information is summarized on one page: here

Last update: 6-oct-2016

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