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Re: [TowerTalk] Insulated wire, theory

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Insulated wire, theory
From: Jim W7RY <jimw7ry@gmail.com>
Reply-to: jimw7ry@gmail.com
Date: Wed, 21 Sep 2022 16:06:28 -0500
List-post: <mailto:towertalk@contesting.com>
Agreed Tom!

All this brain science stuff gets old when we're talking about and inch either way...

73, Jim W7RY


On 9/21/2022 2:26 PM, Tom Osborne Sr. wrote:
Can't we just put up an antenna and see where it is resonant and adjust it
accordingly? 73
Tom W7WHY

On Wed, Sep 21, 2022, 7:49 AM Lux, Jim <jim@luxfamily.com> wrote:

On 9/21/22 6:58 AM, Lux, Jim wrote:
A discussion of how NEC4 does insulated wires (in short, by changing
the wave number of the propagation in the conductor) can be found in
the NEC4 Theory Manual.  Search for NEC4TheoryMan.pdf and there's
several copies out there.


I suspect that EZNEC does it by a similar approach - changing the
length of the wire to a slightly shorter length to accommodate the
slower propagation in the insulated wire. That may have been done
semi-empirically


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--
Thanks and 73, Jim W7RY
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