[Antennas] Re: Elavated Ground planes
Ron Bracklow
[email protected]
2002年10月31日 21:21:29 -0700
Mick,
I one lived in a mobile home that had an all metal roof and thinking that
this would make a great ground plane I installed a 5 band vertical
approximately 10 feet above the roof. In a word, it didn't work a darn!!
The only thing that I could think of that all this metal just saturated the
ground plane and overloaded everything. I couldn't get a match no matter
whether I raised or lowered the antenna.
Perhaps there is someone here on the reflector that has more knowledge about
verticals than I do, that could help clarify the reason why?
Good luck,
Ron, N6PWW
----- Original Message -----
From: "Mick" <[email protected]>
To: "Antennas POST TO" <[email protected]>
Sent: Thursday, October 31, 2002 6:46 PM
Subject: [Antennas] Re: Elavated Ground planes
> 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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