> Edward Swynar <gswynar@durham.net> wrote:
>> I've seen ground radial lay-out patterns beneath multi-element
>> verticalarrays illustrated in ON4UN's book that have the ground systems
>> all inter-connected, thus "commonizing" the radial system for all of the
>> elements in the array...
>
> In absence of some good reason
> to pass an electric current from wire A to wire B,
> I'd rather keep those wires unconnected.
> Sinisa YT1NT, VE3EA
>
The objective is to avoid overlapping radials, as would be the case in most
arrays with 1/4-wave radials. Interactions between individual radials can
create spots where there is current cancellation, reducing their
effectiveness. I believe W7EL and K3LC have both verified this through
modeling. The practice of truncating radials and bonding to a common bus was
developed empirically in the early days of broadcasting, probably documented
somewhere in the papers of G.H. Brown. (Personally I would defer to this
early work -- it was very thorough experimental science.)
Bottom line -- Eddy, if your 1/8-wave radials do not overlap, there should
be no problem.
Gary
K9AY
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160 meters is a serious band, it should be treated with respect. - TF4M
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