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Re: [TenTec] swr

To: geraldj@weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] swr
From: Richards <jruing@ameritech.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 17 Aug 2010 00:16:36 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
On 8/16/2010 10:18 PM, Dr. Gerald N. Johnson wrote:
> A 43' vertical is a serious mismatch on 160 and 80, its too short, has a
> low radiation resistance and lots of reactance. That makes a tuner run a
> high loaded Q and have lots of circulating current in its circuits.


                Agreed.   That kinda sums it up nicely.


> I don't know what is in the $250 box, likely a loading coil with some
> sort of switching like a series resonant circuit for each band to select
> the right amount of loading coil. There wasn't a manual available for it
> on line to learn more.


                I could not find any details, either.  I am thinking
                I favor Mr. Salas's design - it is open, and apparently
                has the imprimatur of the QST Editorial Board.
                It looks, good, too.


================================== JHR  ==============================
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