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Old December 23rd 07, 04:26 PM posted to rec.radio.amateur.antenna
art art is offline
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Default The pursuit of the all band antenna

On 23 Dec, 00:49, Richard Clark wrote:
On Sat, 22 Dec 2007 21:14:07 -0800 (PST), art
wrote:

My understanding is that it only takes a moderate magnetic field
to levitate a free electron, which is a world of difference
from what you are saying


Hi Arthur,

The difference is I have experience in the matter, you don't. *All you
have to go on are books.

Let's just take one very simple example about magnetic fields and
electrons: The Magnetron!

Do you know what's in a Magnetron? *I doubt it. *You will have to look
it up in one of your books, whereas I've held on in my hands while
servicing a transmitter.

So, already knowing you haven't got a clue about what is in a
Magnetron, then I will tell you. *Cathode, Anode, and Magnet - nothing
else to get in the way.

So, there you have your magnet, and it is whopping big one too with a
whopping bloody field that goes waaaaaaaay beyond what you call
moderate (moderate is about 12 orders of magnitude toooooo small in
comparison!).

Does this magnet rip electrons right out of the metal? *It would rip
apart the metal first before that happened. *And yet electrons fly
from Cathode to Anode ONLY when the Cathode is HEATED! *What is more,
the magnet is utterly unnecessary for those electrons to flow.

Ever wonder why Cathodes (or filaments) are heated? *Well, in this
case (as in all other cases) because the Magnet doesn't have the oomph
to pull the electrons off the cold, cold Cathode. *If a magnet can't
do it, electrons are certainly not going to jump off an antenna - not
unless there is sufficient potential to cause corona. *Even then they
don't go very far - not even a foot. *Corona doesn't measurably add to
DX unless you are at sea signaling by semaphore.

Now, can you tell us what a "work function" is? *If you could, then
this nonsense about levitating electrons would collapse.

I will give you a week to do your research. * :-)

73's
Richard Clark, KB7QHC


My point is that the element being diamagnetic and generating a
magnetic field
will displace a free electon or particle from it's surface. The force
or magnetic
field, even tho moderate, levitating the particle has a reactive force
upon the
radiator. The succession of these reaction forces puts the radiator
into oscillation
since just like a pendulum there are two discharges of energy per
cycle.
This cycle of events replicate a tank circuit which is well documented
I am not requesting that a large item be levitated but only a small
particle which
by using the parameters put forward by Gauss is now free to remove
itself
from the given arbitary field. These free electrons, of which there
are many,
are so dense that they will appear as a wave as they move away from
the near field
where they search for another diagmatic resting place. If that new
resting place
is also resonant at the same frequency then the impacts will be a
mirror image of
that which created them thus providing a medium for the transfer of
communication.

The laws of the universe are very simple in nature tho experts strive
to make them difficult
Art
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Old December 23rd 07, 10:21 PM posted to rec.radio.amateur.antenna
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Default The pursuit of the all band antenna

Art wrote:
"My understanding is that it only takes a moderate magnetic field to
levitate a free electron, which is a world of difference from what you
are saying."

Moderate fields make free electrons move moderately within and on the
surface of conductors.

Electron emission requires more energy than does conduction. Conduction
produces a magnetic field which can produce an electric field, etc.,
etc., etc..

No threshold must be exceeded to produce radiation from an antenna. The
weakest received signal must cause at least 50% of its received carrier
power to be re-radiated from an antenna of good conductivity.

Best regards, Richard Harrison, KB5WZI

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Old December 24th 07, 12:02 AM posted to rec.radio.amateur.antenna
art art is offline
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Default The pursuit of the all band antenna

On 23 Dec, 13:21, (Richard Harrison) wrote:
Art wrote:

"My understanding is that it only takes a moderate magnetic field to
levitate a free electron, which is a world of difference from what you
are saying."




Moderate fields make free electrons move moderately within and on the
surface of conductors.


Pardon me but when a free electron or particle is resting on a
diamagnetic surface
in a electromagnetic field it moves ONLY in a directionm at right
angles to the
diagmatic surface and no other direction until the electro magnetic
field diminishes. The phrase" within and on a surface is somewhat
inaccurate"

Art

snip
regards, Richard Harrison, KB5WZI

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Old December 24th 07, 07:41 AM posted to rec.radio.amateur.antenna
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Default The pursuit of the all band antenna

Art wrote:
"The phrase within or on the surface is somewhat inaccurate."

At risk of boring some to tears, please consult the 1955 opus of F.E.
Terman, pages 865 and 903 for radiation patterns of elemental and
1/2-wave doublets when currents flow in an axial direction on a
conductor. Recall that the conductor can be ever so thin and that
reciprocity rules in antennas.

Best regards, Richard Harrison, KB5WZI

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