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Old February 15th 11, 02:13 AM posted to rec.radio.shortwave
RHF RHF is offline
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First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default Wire SWL Antennas : ? The Question Is . . . Are Your SWL AntennasFit-To-Be-Tied !

On Feb 14, 9:19*am, Joe from Kokomo wrote:
On 02/14/2011 06:51 AM, dave wrote:
On 02/13/2011 08:26 PM, RHF wrote:


-but- I still use Antenna Insulators between the 'Poly'


Why?


On 2/14/2011 10:34 AM, dave wrote:


- - If you use insulating rope there is no need to buy insulators.

- Well, that could be debatable.
- Do you have any way to quantify the RF leakage of wet
- rope vs. a wet insulator to support your contention?

Joe from Kokomo : What I was told many years ago
and still believe today is :

A Hard Insulator does not become contaminated with
all sorts of things -while- A Soft Woven Rope can Absorb
the Contaminates.

Now Add Rain {Water} and two things can Happen :

* The Hard Insulator has the Surface 'contamination'
Washed-Off.
-result- A Good 'Clean' Fully Functioning Insulator )

* The Soft Woven Rope can Absob the Rain Water
-and- Now you have Water 'mixed' with what all the
Contaminates that have penetrated the Rope.
-result- The Rope is no longer as good an Insulator
as when it was New un-contaminated and dry.

Just seemed reasonable to me -but- I have never seen
and Test Data that confirms this 'common-sense'.