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Old June 26th 12, 09:34 AM posted to rec.radio.amateur.antenna
Szczepan Bialek Szczepan Bialek is offline
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First recorded activity by RadioBanter: Oct 2009
Posts: 707
Default loop antennas and noise suppresion


"Boomer" napisal w wiadomosci
...
On 6/25/2012 8:12 AM, W5DXP wrote:
On Monday, June 25, 2012 2:23:22 AM UTC-5, Szczepan Bialek wrote:
The floor of the van is the plate and the surface of the Earth is the
second
plate.


How about the capacitors and antennas on Voyager I and II which are still
operating at the edge of the solar system?
--
73, Cecil, w5dxp.com

You see the Voyager I and II use their metal structure as one plate of a
capacitor connecting to earth. The space between is the dielectric,


The dielectric is in the textbooks. In real space is the rare plazma
(conductor).
" Since plasmas contain equal numbers of electrons and ions, they are
electrically neutral overall and thus electric fields play a lesser
dynamical role. Because plasmas are highly conductive, any charge imbalances
are readily neutralised."

"Norwegian explorer and physicist Kristian Birkeland may have been the first
to predict that space is filled with plasma. He wrote in 1913: "It seems to
be a natural consequence of our points of view to assume that the whole of
space is filled with electrons and flying electric ions of all kinds. We
have assumed that each stellar system in evolutions throws off electric
corpuscles into space. It does not seem unreasonable therefore to think that
the greater part of the material masses in the universe is found, not in the
solar systems or nebulae, but in "empty" space."[1]["
From: http://en.wikipedia.org/wiki/Astrophysical_plasma
S*