[TowerTalk] K8UR array - effect of ground

[Ken Hirschberg]

Hello, Pete -
I belive what's going on with the elevated radials is that they are OK for the
current return, but are inadequate as a ground screen against near-field earth
loss.
73, Ken K6HPX

Pete Smith wrote:

> I withdraw my earlier claim that radials have no effect.  I revisited my
> model and tested it with varying ground conductivities and high-accuracy
> calculation.  Even specifying merely very good soil (the highest
> pre-figured value provided by EZNEC), gain improves by almost 2 dB over the
> same antenna modeled over "good" ground.
>
> Evidently, in my previous modeling I was using 4 elevated radials, which
> for some reason did not seem to give the same results... (and that'll start
> a fight...)
>
> 73, Pete Smith N4ZR
>
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