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Re: Topband: Radials help

To: herbs@vitelcom.net
Subject: Re: Topband: Radials help
From: Eddy Swynar <deswynar@xplornet.ca>
Date: Fri, 10 Feb 2012 11:48:33 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
On 2012-02-10, at 11:34 AM, Herb Schoenbohm wrote:

> One advantage of using insulate wire is that the velocity factor of the wire 
> on ground or (ROG) allows for shorter lengths.  This is important if you 
> have limited yard space. 



Hi Herb,

Interesting point...!

According to either the ARRL "ANTENNA HANDBOOK", or ON4UN's "LOW-BAND DX 
HANDBOOK", the velocity factor of insulated wire placed atop the ground is 
50%...

I take that to mean that a 1/8-wave PHYSICALLY long wire radial has the 
ELECTRICAL equivalency of a wire radial that is 1/4-wave long...

Maybe THAT'S the reason why I employ a total of 24 insulated radial wires, 65' 
long (each) beneath my "L" elements...it may not be an "exact science", but 
hope springs eternal...! (Besides, have you seen the price of copper wire 
lately...?!).   : >)

~73~ de Eddy VE3CUI - VE3XZ
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK

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