Cecil Moore wrote:
.. . .
All the experimentation has already been done by others,
Tom, and pretty well documented in publications available
on the web including a host of governmental and university
publications so I would be wasting my time. It is possible
that I misunderstood something but impossible that there
has not been enough experimentation. Wishing that all static
is caused by ionization of the air is just a pipe dream. There
would probably never be enough precipitation static on a
well-designed folded dipole to result in ionization of the air
but certainly enough to hear in a receiver.
--
73, Cecil, w5dxp.com
Hi Cecil,
Though I must seem to be coveting the dead-horse-beating trophy, have
you found an explanation of how the relatively low average currents that
charged precipitation imparts to an antenna cause static? My back of the
envelope calcs showed nanovolt-level signals at the receiver from this
current. Clearly, adding charges could eventually result in a corona,
but how does the typical current density found in a storm result in
measurable (i.e., readily detectable) signals at the receiver front-end
when no coronas are present? As I asked in an earlier post, is there a
relaxation mechanism somewhere in the antenna/receiver system? Where?
What determines its time constants?
Are the reported current densities wrong (i.e., not representative of
the conditions under which non-coronal p-static is typically developed)?
Is p-static somehow anomalous in that it is not found in all storms with
charged precipitation?
The coronal mechanism is understandable to me, but the non-coronal
p-static leaves me needing a better explanation than I have been able to
find.
A special thanks to you for helping to keep the group lively and
interesting, Cecil!
73,
Chuck
NT3G
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