[TowerTalk] Good vacation antenna

David Gilbert ab7echo at gmail.com
Fri Jul 4 14:32:40 EDT 2025


Wes isn't modeling inductive loading ... he's modeling a series resistor 
in the feed.  It's a matching network, not a loading coil in the 
element.  He's comparing apples and walnuts.

Dave  AB7E


On 7/4/2025 11:30 AM, Jim Brown wrote:
> On 7/4/2025 8:39 AM, Wes wrote:
>> I "built" a model of a vertical in AutoEZ and used EZNEC Pro/2+ V 7.0 
>> running the NEC 5 engine to do the computations.
>
> All good, but -- one of the things that long QEX piece showed is that 
> EZNEC doesn't correctly model inductive loading! They did this by 
> comparing the modeling result with measurements of built antennas.
>
> 73, Jim K9YC
>
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