[Lowfer] Question : Hanging Vertical drop wires on a HorizontalTop Load

[Cliff Sojourner]

... instead of eznec, download 4nec2 which has a better UI and no silly restrictions on segments  etc.

On September 25, 2015 2:17:45 PM PDT, Michael Sapp <wa3tts at verizon.net> wrote:
>Andy: Download the free version of EZNEC and run some simulations. It
>is 
>limited to 20 wire segments, but you can simulate plenty of simple wire
>
>antennas within the 20 wire segment
>
>constraint. It will also help you to better grasp the "j-ohm" concept
>.... 
>The EZNEC demo program comes with a collection of simple antenna models
>
>which you can modify in the wire table to
>
>get a feel for how the program works.  It takes alittle bit of effort
>to 
>figure out, but it is not a steep learning curve like Spectrum Lab....
>
>If you terminate the "hanging wire" into a resistive load to ground you
>get 
>something resembling an inverted "U" antenna....
>
>73, Mike wa3tts
>
>
>
>----- Original Message ----- 
>From: "Andy - KU4XR via Lowfer" <lowfer at mailman.qth.net>
>To: " European & UK) and MedFer bandsDiscussion of the Lowfer (US" 
><lowfer at mailman.qth.net>
>Sent: Friday, September 25, 2015 4:52 PM
>Subject: Re: [Lowfer] Question : Hanging Vertical drop wires on a 
>HorizontalTop Load
>
>
>> Good day gents:
>>
>> The purpose of the " hanging stubs " in a completely non-theorectical
>way, 
>> is to add extra
>> " Vertical " portions in the hope that they will contribute
>additional " 
>> Vertical " radiating
>> sections in the antenna... 160 meters, and hoping in the future, 630 
>> meters, will be the only
>> bands the antenna will be used for...I know the stubs will add 
>> capacitance, and skew the
>> current distribution along the dipole section... The question is
>still : " 
>> Will the Vertical Stubs
>> radiate RF in the vertical Polarization ?? "
>>
>> Andy - KU4XR
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-- 
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