I'd contact SCALA antenna corp and tell them what you want to do.
<http://www.kathrein-scala.com>
Also look at the Phelps Dodge catalog (or whatever their name is
this week) and look at the StormMaster series.
Either one will work just fine as they are made for the weather - but
they ain't cheap.
Mike WA6ILQ
At 01:48 PM 3/23/04 -0700, you wrote:
>Hi
> I am doing some planning for an VHF repeater on the top of a
>9000 foot high mountain top.
>The coverage is to the valley floor about 4000 feet below the repeater site.
>
>To get good valley coverage I have been contemplating using a
>1/4 or 5/8 wave antenna mounted upside down.
>
>I am looking for suggestions from those who have had experience with upside
>down antennas.
>
>I know about the radome sealing problems and lightning protection.
>
>The antenna will also be subject to high winds and ice loading.
>
>Wondered about shadowing of the mounting structure in the pattern.
>
>Thanks for the help
>Byron
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
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