[Elecraft] Inverted-L (was OT: Vertical antenna)

[Steve Ellington]

Logically .....

You may as well have a big loss in the near-field and get it over with.

That way you'll have less to loose in the far field!


Steve
N4LQ
----- Original Message ----- 
From: "Guy Olinger K2AV" <olinger at bellsouth.net>
To: "Tony Estep" <esteptony at gmail.com>
Cc: <elecraft at mailman.qth.net>
Sent: Tuesday, December 21, 2010 10:28 AM
Subject: Re: [Elecraft] Inverted-L (was OT: Vertical antenna)


> The only thing I would point out about the article is that it
> basically is a tabulation of model results, an extension of the model
> presentation, what do you get if you run the model over and over kind
> of thing.  The modeling of dirt is in itself an attempt to extend a
> limited paradigm of MF measurements (aka commercial broadcast band),
> focused on measurements at the ground for very practical reasons
> (Norton-Sommerfield) and has its own set of  well-known issues.  It is
> quite common to model radial kinds of issues and then install a design
> and find quite different results.  Dirt, and all its variability,
> remains notoriously resistant to being modeled.  Modeling can, I say
> "can", get one in the neighborhood and it's back to cut and measure,
> and a degree of common sense.
>
> 73, Guy.
>
> On Mon, Dec 20, 2010 at 10:14 PM, Tony Estep <esteptony at gmail.com> wrote:
>> For those who wish to pursue the radials question further, here's one of 
>> the
>> many publications on the subject. This one is replete with numerous 
>> tables
>> and graphical representations of the incremental value of more and longer
>> radials in various types of soil:
>>
>> http://www.ncjweb.com/k3lcmaxgainradials.pdf
>>
>>
>>
>> Tony KT0NY
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