Topband: Adding radials, a question

[Richard Detweiler]

Thank you for your reply

True  any thing directly from a vendor is suspect, but when it resounds so 
directly to vertical theory, then it should be respected.

Although I do not claim to be an expert,   I chose the link as it put the 
information printed in the ARRL manual, various white papers and so forth in 
the most understandable format.

I respectfully disagree with your comment.  Others may be able to confirm 
seeing the Q rising as radials are increased along with other points being 
made.

Thanks again and Best 73's
richard.
K5SF

>From: "Tom Rauch" <W8JI at contesting.com>
>Reply-To: "Tom Rauch" <W8JI at contesting.com>
>To: "Richard Detweiler" <rdetweil at hotmail.com>, <w5un at wt.net>
>CC: <topband at contesting.com>
>Subject: Re: Topband: Adding radials, a question
>Date: Thu, 2 Sep 2004 18:46:44 -0400
>
> > As I understand it for ground mounted verticals, as you put in more
>radials,
> > the 'Q' gets higher.   Especially for for low bands (160 & 80) Thus as 
>the
> > radials increase, the radiation resistance increases ( the good kind ) 
>and
> > and the ground loss or ground resistance decreases ( the bad kind ).
>Excuse
> > my teminoligy here.  So the total resistance approaches the more perfect
>35
> > ohm vertical impedence.  Obviously, it can never be fully acheived but 
>the
> > point is this,  when the Q stops rising appreciably,  you've probably 
>put
>in
> > enough radials for the amount of wire you have in the air.
> >
> > Of important note here is that the length of the radial isn't really
> > important as the ground detunes them,  but the need to be somewhere 
>about
>as
> > long as the height fo the vertical.
>
>Hi Rich,
>
>Actually nearly all of that is not true as a rule. I'd never rely on a
>manufacturers web page for critical antenna information.
>
>73 Tom
>
>