Tuning it down to nothing does not necessarily mean better
performance. For some of the tuners, particularly some of the smaller
ones, no reflected power may mean that the swr is being eliminated by
converting the reflected power to heat.
QST published a review of some of the larger tuners, with some
surprisingly bad efficiency figures (as in losing half the power under
some circumstances). I don't remember the issue, but it was in the
last several months. I think you will find them interesting reading.
What I don't have from your posts is the kind, power level, and
frequencies of your matching needs. Or why you felt it necessary to
change the original tuner in the first place.
----- Original Message -----
From: "Bill Aycock" <firstname.lastname@example.org>
To: "Leroy Buller" <email@example.com>; <Towertalk@contesting.com>
Sent: Thursday, March 20, 2003 3:57 PM
Subject: Re: [TowerTalk] Homebrew Tuner Thoughts Needed
> At 08:24 PM 3/19/2003 -0800, you (Leroy Buller) wrote:
> > Can anyone enlighten me as I have not been able to come to a
> > about this issue. What confounds me is that my cheap little MFJ
> > will tune all my antennas down to nothing .should I keep it SPC or
> > back to the T?
> >Lee - K0WA
> Lee- You may have the answer in the text above. It looks like the
> Stick with the MFJ or its big brother.
> make a "Chinese copy" of the MFJ and paint it to match your rig.
> look on ebay.
> Good luck- Bill
> Bill Aycock - W4BSG
> Woodville, Alabama
> See: http://www.mscomputer.com for "Self Supporting Towers",
"Wireless Weather Stations", and lot's more. Call Toll Free,
1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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