On Mon, 15 Nov 2004 06:22:45 GMT, "Dave Pitzer"
wrote:
Being an avid MW/ BCB DX-er I have found sporatic "short-term" variations
within the longer Day/Night -- Summer/Winter cycles. For example, I live in
NE Pennsylvania and can regularly listen to WJR in Detroit at night
(slightly better in winter). However, for a three-four night period last
week, the night signal varied from unreadable to extremely noisy to "gone".
I use WJR only as an example. Othe 50,000 watt clear-channel stations around
the east coast suffered the same night-time signal degradation during the
same three-four night period. Short-term sun-spot activity??? Only thing I
can think of. And if so, this activity should be predictable (and
reportable) on a very short-term (24-48 hour) basis. Just a thought on my
part.

Hi Dave,

There've been reports of Auroral activity which is an indicator of
solar emissions that disrupt communication. You might want to include
the solar flux reports at:
http://www.sel.noaa.gov/forecast.html

73's
Richard Clark, KB7QHC