Hi Mark,
Earlier this year on this list, K9LA posted the following:
With respect to Wolf DF2PY's comment about very good propagation on polar
routes when the A index and the solar wind speed are elevated, our
understanding of what makes 160m tick is lacking. In other words, "stuff
happens".
The "boost before bust" phenomenon has also been noticed by DX listeners of the
AM broadcast band.
Here on the US East Coast, some of the more reliable northern European signals
are the UK stations on 693, 882, 909, 1089, and 1215 kHz. We used to have the
Norway "flamethrower" on 1314 as a
