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Old April 4th 05, 05:03 AM
J. Mc Laughlin
 
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Dear John Smith (no call, no location)

Your questions contain assumptions. You assume that formulas amiable of
being programmed into a TI calculator exist for what it is you wish to do.
I doubt that they exist.

To borrow a term from your job, top-down is needed. Start with the
ARRL's Antenna Book. When you have digested its teachings, read either
Kraus' 3rd edition or Balanis' 2nd edition. Start at the beginning and
follow the road. It will be an interesting journey.
Regards, Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"John Smith" wrote in message
...
Yes, I am quite sure you are correct.

And, perhaps no one knows, or no one does it the old fashioned way and has
the formulas and steps at their disposal, I may have to seek other sources
than here.

However, I am a software engineer, once I understand the underlying math

and
methods I can write such an application myself.

When the final drafts of these programs are released, antenna design, I am
sure you will just draw your antenna on virtual graph paper with ruled
lines, such as many of the draw programs have. And, be able to add any
inductance or capacitance just by selecting the point with the mouse, and
then entering values--the application will do everything else for you,
including making suggestions for improvement, matching, special

conditions,
etc, etc--much like CAD (Computer Assisted Drafting) applications.

However, whether I use software, or simply divide 468/Fmhz, I still get a
half-wave.

It is fine if one wants to rely on software--I make my living on those who
do, I LOVE those people!--I just don't wish to invoke that method, later
when my understanding is absolute (well, greater than it is now) I may, or
write software specific to my needs...


Warmest regards




"Cecil Moore" wrote in message
...
John Smith wrote:
I am sure EZNEC is an excellent application. But with such

applications,
you spend your time learning the application, rather than the

underlying
principals;


I have learned many, many principles from using EZNEC which is
a really great learning tool. Look at it as reverse engineering.
You wonder why EZNEC reports such results and then you go discover
why. Modeling with ELNEC and EZNEC has taught me as much about
antennas as any other single source including Dr. Balanis' graduate

level
college antenna course at ASU. One doesn't learn anything by avoiding
learning EZNEC. Dr. Balanis was amazed that an Intel
digital engineer already knew so much about antennas and I owe
that, in large part, to ELNEC and EZNEC.
--
73, Cecil
http://www.qsl.net/w5dxp