Topband: Low-angle radiation from vertical antennas

Guy Olinger K2AV k2av.guy at gmail.com
Wed Aug 20 16:25:09 EDT 2014


So now NEC is definitive? Even with all it's known defects around the
edges? NEC is the process that indicates the unproven/undisproven notch.
 Measurements at aircraft altitudes and 25-50 km or hold one's peace.

73, Guy


On Wed, Aug 20, 2014 at 2:36 PM, Richard Fry <rfry at adams.net> wrote:

> Dan AC6LA wrote:
>
>> ...To help resolve the issue I modeled a ?/4 vertical with and without
>> the ground wave at multiple slant (radial) distances and plotted the
>> results. etc
>>
>
> Dan's AutoEZ charts remove all doubt about the issue of whether or not the
> ground wave contributes to monopole radiation reaching the ionosphere.
>
> Clearly, it doesn't.
>
> R. Fry
>
>
>
>
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