Topband: Beverage Suggestions/Comments
btippett at alum.mit.edu
Thu Dec 8 17:08:28 EST 2005
> > >Would raising the antenna to 8-10 feet off the ground help any?
> > No, in fact that would degrade directivity. If you could
> > lower it to 2-3' you might notice some improvement.
> > 73, Bill W4ZV
>Is this a universal truth? I was under the impression that this
>depended on the quality of the soil conductivity. E.g. good soil,
>raise it up. Bad soil, lower it. Directivity is just one
>measure. What about raw sensitivity? Once again, good ground,
Directivity is THE measure for any receiving antenna.
You would not notice sensitivity problems with any modern
receiver (even without an external preamp). See Chapter 7,
Verse 184.108.40.206 of ON4UN's book:
"...0.5-1m for added high-angle discrimination and reduced
omnidirectional pick up." (with safety disclaimer)
>Also, the author can make each beverage a bidirectional beverage and
>reduce the number of installations needed by 50%
He said it was bidirectional. Otherwise ladder line
would have been a waste.
73, Bill W4ZV
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