Date: Thu, 15 Mar 2007 07:46:53 -0700 (PDT)
From: cris blak <cyo3fff@yahoo.com>
Subject: Re: Topband: Moon and the Ionosphere : YO3FFF
Hello Carl,
Thanks for suggestion to dig in the archive of this list. I find
interesting the following posts:
21.0ct.2002 NM7M Bob, G3REP Bob;
The very best is the one of Bob G3REP on 07 Oct 2004! Is there
anybody who verify/ read about the influence of the moon [L]/sun [Sq]
parameter to the 160m propagation? How about the theory of the dynamo
effect on the wave propagation? Is there anybody who have the Massey
and Boyd "The Upper Atmosphere" Pub. Hutchinson & Co 1958 on pdf? I'm
interested to read it.(thanks)
N0FP draw an interesting picture on his e-mail from 19 Oct 2005
regarding the position of the Moon/Sun and the interaction of there
magnetic fields and the Earth magnetic field. It make sense for me
but I don't know if this idea was verified?! I do think that the
ionosphere is not affected by only ionization things coming from
outside but the magnetic field too.
I also think that Pat N8VW has right on his e-mail on 19. Oct 2005
when he said that cosmic rays (other than the Sun's) have influenced
the ionosphere and the propagation. GRB (Gamma Ray Burst) is a good example.
Again Bob G3REP on 25 Oct 2005 put on the table some writings which
sustain the little influence of the Moon on the ionospheric
propagation. Well documented and the question from the end of the
e-mail still there I think:
"One wonders if we will ever find a conclusive answer."
And thats the story on the subject.
If couple of us want to answer to the question than should set-up an
experiment! One or two beacons of high power (or about 100-200W) and
couple of reception points. The propagation path should be choose in
order to achieve a DX propagation in all direction of interest and
also a short direction just for having an imagine of the first
reflection (the distance should be beyond the ground wave action).
Also could be a good idea to record the beacon on a middle range to
see if some ducting could appear. This experiment should carry on for
at least one year to be relevant.
Such kind of experiment in a serious matter was this:
http://www.astrosurf.com/luxorion/qsl-eclipse-d-layer.htm
Is this test of any interest for the community? If yes than who want
to contribute to such test?
73 de YO3FFF
Cristi
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