Topband: Band Open - But No Sunrise Peak

[Mike Waters]

I started a thread about this very subject back in July at:

ham.stackexchange.com/questions/8940/what-is-the-cause-of-this-unusually-long-period-of-terrible-hf-band-conditions

Let us know your opinions. Several (except one) have posted references
there that this solar minimum is not *any* lower than the previous ones.
Something else is going on in our ionosphere.

73, Mike
www.w0btu.com

On Fri, Jan 12, 2018 at 6:48 PM, Nick Hall-Patch <nhp at ieee.org> wrote:

> I suspect that http://www.swpc.noaa.gov/products/solar-cycle-progression
> shows the source of our difficulties.  The highest level of geomagnetic
> activity in the present cycle started in late 2014.   Up to that point,
> high latitude conditions in this location seemed pretty reasonable overall,
> considering the progress of the solar cycle, but since then, they've been
> fairly poor overall.
>
> Perhaps quieter geomagnetic conditions overall contribute to the
> likelihood of the occurrence of sunrise peaks in signal strength?   (though
> that's difficult to tell if there are also no signals heard previous to
> sunrise due to poor conditions)
>