Jan-Erik Holm <JEH@on.mobile.telia.se>: TopBand: Re: Beverage doubts.

[T A RUSSELL]

Re:  Beverages

My experience on 80M is that my 500 Beverages are often MUCH
better than my 1000 ft Beverage (to Europe) in the late afternoon
and early evening.  By midnight, there is not much difference.

On 160M, the 1000 ft Beverage is almost as much better than the
500 footer as the 500 footer is over my elevated GP.

de  Tom  N4KG  in Alabama
...................................................

From: Jan-Erik Holm <JEH@on.mobile.telia.se>
To: topband@contesting.com
Subject: TopBand: Re: Beverage doubts.
Date: Thu, 23 Apr 1998 07:10:44 GMT+1

>Dave, W0FLS wrote:
>
>"My two 580' beverages don't usually hear any better than my 4 sq on 80.

>However, they significantly out perform my quarter wave elevated
vertical
>on 160."
>
>Larry, W0ETC wrote:
>
>"Similar experience here in Iowa.  I put up a 295 foot Beverage and
found
>that  95% of the time the 80 meter 4 square is just as good as or better
>than the  Beverage (in it's favored direction) at digging out the week
>ones.  On rare  occasion S/N on beverage allowed better copy.  Maybe
this
>proves how gud the 4 square is, or how lousy my Beverage construction
>techniques are, or that 295 ft is just too short for a Beverage to be
>effective."
>
My experience (from 80 m) is that they need to be at least 1000 ft before
they start to perform, would need to be at least 2000 on 160 then, that
is
less then 4 wl long seems to be a waist at least at my latitude with the
angles involved.
If you check the antenna books you will notice that a 1 wl beverage has
far
to high waveangle for good DX performance, needs to be 4 wl before it
starts
to come down in the 25 degree region.
73 de Jim SM2EKM



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