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Re: Topband: Beverages

To: "Calle Jonsson" <calle.c.jonsson@utb.boras.se>,<topband@contesting.com>
Subject: Re: Topband: Beverages
From: "Tom Rauch" <w8ji@contesting.com>
Reply-to: Tom Rauch <w8ji@contesting.com>
Date: Wed, 16 Nov 2005 11:29:04 -0500
List-post: <mailto:topband@contesting.com>
> I have tried beverages of different configuration over the
past 20 years, but never succeded.

The only things hurting a Beverage besides catastrophic
construction errors or bad components are:

1.) Poor ground connections at each end, especially if you
use a transformer that has a path from the antenna ground to
the coax ground. If you are in very poor soil, symmetrically
distributed radials are often the best solution. With poor
soil it is very important the Beverage ground NOT be coupled
to anything else, especially the feedline shield or a long
conductor laying under the antenna.

2.) Very high conductivity soil reduces performance and
makes the ends have significantly more signal contribution
to the system

3.) Conductors under or around the antenna making it look
like very good soil or transferring unwanted signals into
the Beverage

4). An antenna that is far too long can also reduce
performance, about 2 waves is a typical maximum length for
160. After extensive A-B tests over years, I'm settling on
about 800 feet for all my antennas.

5.) An antenna that is too high can reduce performance.

73 Tom

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