[Antennas] Re: [RFI] Long distance grounding

[Danny Richardson]

At 06:22 PM 6/11/2007, Tom wrote:

>Oh boy! One of my favorites! :-)
>
>The center conductor does nothing at all Dennis. You can
>throw it away. Same for the capacitors. Skin effect keeps
>all the current on the outside of the shield. Since you
>don't have any differential currents and there isn't any way
>to create them, you can't force any current inside the
>hollow cylinder called the shield.
>
>So what you really have is a round braid that is much larger
>diameter than a thin wire, so better than a thin wire, but
>nowhere near as good as a wide flashing would be.
>
>As a matter of fact if you could pull the guts out of the
>cable and throw them away without having the cable collapse
>it would work the same.
>
>The rest is pure fantasy as Faraday, Lentz, Maxwell, and
>others would tell you if they were still alive.

Thanks for that Tom. I have been scratching my head over that for 
years. Never could see what good those capacitors could do although I 
have seen that recommendation many times in various ham publications. 
Just another ham radio factoid I guess. :-)

Very 73,
Danny, K6MHE

   


-- 
No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.472 / Virus Database: 269.8.13/843 - Release Date: 6/10/2007 1:39 PM