Topband: 160m activity and propagation

[Henk Remijn PA5KT]

In the previous minimum I could work North West USA and West Canada 
almost every day.

Now it is rare.

The path to southwest USA and Carribean is better.

73 Henk PA5KT

Op 23-2-2020 om 14:09 schreef W7RH:
> The emphasis of my questions are based on European propagation path 
> perceived differences since last solar minimum.
>
> One thing I am not is a Geophysicist, I have no training there. My 
> comments are on perceived changes in the aurora ring density as viewed 
> from my location in Arizona that would have been in the past much 
> lower on the path towards Europe far more often than present. I'll 
> call it prime time wipe out. Very small changes in solar wind have had 
> a profound effect. Whether the center point is the magnetic north pole 
> or the Geomagnetic pole I have no idea as both have migrated with the 
> Magnetic North pole the greatest at a rate of 30 miles per year and 
> increasing.
>
> Perhaps the reduction of magnetic field over North America and 
> increased gamma radiation create the effect. In a related article it 
> stated the magnetic field over North America is 15% less than it was 
> in 2015.
>
> https://www.livescience.com/46694-magnetic-field-weakens.html
>
> https://www.hist-geo-space-sci.net/5/175/2014/
>
> Trying to get a better grasp of what is going on.
>
> 73
>
> Bob W7RH
>