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Old February 23rd 10, 09:02 PM posted to rec.radio.amateur.antenna
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Default receive polarity

On Feb 23, 12:32*pm, Jeff Liebermann wrote:
On Sun, 21 Feb 2010 21:44:56 -0800 (PST), Art Unwin



wrote:
On Feb 21, 11:18 pm, Jeff Liebermann wrote:
On Sun, 21 Feb 2010 19:45:03 -0800 (PST), Art Unwin


wrote:
Model of 2 element multi polarization.
http://users.sdsc.edu/~unwin/art/Picture6.png
http://users.sdsc.edu/~unwin/art/Picture7.png
http://users.sdsc.edu/~unwin/art/Picture10.png
http://users.sdsc.edu/~unwin/art/Picture11.png


I don't see a model. There is no .EZ, .GAA, .N4W or .NEC file for me
to play with and tear apart. I can't even tell what the antenna looks
like from what you've posted.

You have two elements each located with x,y and z *co ordinates at
each end, so you make your own file to suit the program you intend to
use or is available.


I do not have two elements. *I can't located them in x, y, or z
because you didn't specify any such coordinates. *I can make a
suitable NEC deck, but *YOU* need to supply the numbers.

Surely you can model anything if you know the end locations of the
elements.


I certainly can. *Now, can you supply those end locations? *While your
at it, the height above ground, element diameter, material
composition, etc might be good to disclose. *

Also, why make me do all the work? *You have obviously created a data
file for some unspecified NEC2 modeling program. *Why not just post
the model?

If you are unable to do that then may be it is better that
you don't.


Try not. Do... or do not. There is no try.
* * * * * * * * * * * * * * * Yoda

There are to many programs around for me to make files for
every body and every program that is available so I supplied x,y,z co
ordinates which every body can translate.


Yep. *Pick one.

These are the points you
should look for to determine what the antenna looks like.


These are what points? *You haven't supplied any numbers.

Either way I
have supplied the results to save you the work.


Generous of you. *If you don't disclose any numbers, it's not a model.
It's a bad joke. *Try harder.

--
Jeff Liebermann * *
150 Felker St #D * *http://www.LearnByDestroying.com
Santa Cruz CA 95060http://802.11junk.com
Skype: JeffLiebermann * * AE6KS * *831-336-2558


Just let it drop!
I use Minninec not NEC programs
I really do not want to fight with you or anybody on this even tho
many want to.
I made the post as a point of interest and to share only. To show
what polarities it was sensitive to even tho many want to fight
regardless of what I post.
The majority on this newsgroup are not able or interested
in modeling which is why I posted the results, otherwise the intent
would be lost on them.
Ever since I declared that a static field in equilibrium, when made
dynamic, is applicable to Maxwells equation for radiation it seems
like everybody wants a piece of me even tho they are completely
ignorant of the physics involved. The model provided is complete
evidence of this fact which as yet nobody has been able to refute
prefering to personaly harm the messenger. Maxwell gained fame just by
adding /dt to an equation which made it dynamic,
and apparently many on this newsgroup want to deny him of his
achievement because the importance is not illustrated in any physic
books. Frankly, if you can't live with history you should be
challenging computer programing that utelise 1/2 wavelength radiators
where the energy lost by the components is ignored as is the EXACT
length of a 1/2 wavelength which varies with every cycle!
Use of Maxwells equations are for radiator designs that are sensitive
to ALL polarities directed at it for maximum efficiency, and not for
those designs that it ignores or cannot handle.
Art KB9MZ
 
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