----- Original Message -----
From: "WILLIAM MANSEY; WA2PVK" <res0wsci@verizon.net>
To: "George, W5YR" <w5yr@att.net>
Sent: Tuesday, January 21, 2003 6:10 PM
Subject: Re: [TenTec] [OT] Metal Roof as Ground Plane
> I happen to be somewhat "space challenged" and am limited as to what
> antennas I can put up. I do live in a private house on it's own lot but
the
> lot is not that large and there are power lines in all the wrong places!
> I had a Hustler 6BTV but this did not work well because I did not have
> enough room for radials. (ground mounted)
> My next venture was a Cushcraft MA5V vertical. This covers 20 thru 10
> meters and is rather small & lightweight. It has 4 four foot long radials
> and I will admit being quite skeptical. That skepticism dried up and blew
> away after I easily made contacts in Antarctic, Australia, and New Zealand
> among other places. I have a Jupiter and run it "barefoot". I have even
> managed to get through some rather large DX pile-ups with this
arrangement.
> I was so impressed that I went ahead and bought a second MA5V to use with
my
> Orion. I also have a multi-band inverted V and a sloper.
> The first MA5V is mounted on a 6 foot mast that is attached to a vent pipe
> on the roof. This places the base of the antenna at about 18' above the
> ground. The second one is mounted at about the same height but on a
push-up
> pole on the other side of the house. It works as well as the first one.
> This covers the "ground plane" part of the original message. Now for the
> other part: I agree that for the roof to be effective it must be one
piece
> from the viewpoint of RF. Anything less than good continuity will cause
> problems and/or render the roof ineffective as a ground plane.
> Not only that BUT any chickens in the barn will lay hard boiled eggs!
73,
> Bill
>
>
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