[Antennas] Re: Elavated Ground planes
Igor Sokolov
[email protected]
Fri, 1 Nov 2002 19:23:17 +0500
I once had 40 mtrs vertical on the roof covered with metal sheets. There
were no radials. The roof did the job nicely. There is no need to run wires
down to the ground as far as performance of the antenna is concerned as for
the lightning protection that is completely different matter.
73, Igor UA9CDC
> Hi guys,
> As I have a small yard around my house l am looking at building a
multi
> band trap vertical and mounting it on the house roof (with nylon guy
wires)
> and was going to use the large Iron roof as a ground plane. The roof is
> rectangular in shape so would think that the radiation patton will also be
> elongated. A question I would like to ask the list is should I run wires
> from the roof down to earth points around the house ,and if so how many or
> can I just rely on the 4 metal down pipes ( that carry the water from the
> roof to the drainage system) to serve the same purpose.
> Thanks Michael Harley,
> Curator "The Radio Shack", Caboolture Historical village, Brisbane
> Australia.
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