The way I model using eznec/4nec2 is to model the yagi as a wire model, as
you have.
Then I isolate each element by itself and determine it's resonant frequency.
When I build the physical model I simply resonate the element to the
frequency determined from the model.
Thus, you can build the physical elements with whatever taper/steps you
have available that meets
your survivability requirements. This method gets you very close to the
model but doesn't take
into account things such as mounting hardware.
Kris N5KM
> Date: Sun, 3 May 2020 16:28:23 +0000
> From: john nistico <electric911inc@hotmail.com>
> To: towertalk <towertalk@contesting.com>
> Subject: [TowerTalk] ez nec help
> Message-ID:
> <
> BL0PR16MB233772AE21ADB4591638983591A90@BL0PR16MB2337.namprd16.prod.outlook.com
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>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I am new at modeling and can use some advice. My son has a small tower and
> I modeled a 2 element 20 meter wire beam on a 10 ft boom. looks great on
> paper but would like aluminum elements how do I figure the taper? Does
> taper effect length?
> NY6DX
>
>
> John J. Nistico
> 911 Electric Inc.
> 516.325-8993
>
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