[Antennas] Help with feedpoint impedance measurement

[James Duffer]

An excellent web site, I have bookmarked for future reference.

73, Jim (wd4air)


>From: k0occ at comcast.net
>To: Danny Richardson <k6mhe at k6mhe.com>, antennas at mailman.qth.net
>Subject: Re: [Antennas] Help with feedpoint impedance measurement
>Date: Mon, 19 Feb 2007 16:37:42 +0000
>
>Richard Measures balanced tuner article is also available on his website 
>which is   www.somis.org
>(don't have to be ARRL member to access)
>--
>Ernie, k0occ
>Atlanta, GA
>
>-------------- Original message --------------
>From: Danny Richardson <k6mhe at k6mhe.com>
>
> > At 07:42 AM 2/19/2007, John wrote:
> >
> > > I was wondering what techniques you would employ to make these
> > > measurements.... I know a couple, but perhaps there's some new way
> > > that would be superior to what I was thinking of. Once I have the
> > > "real world" range of impedances I need to deal with - then I have
> > > a point of departure for the tuner/matching network.
> > [snip]
> >
> > I have, for about the last six months, been using the AIM 4150. I
> > have found it to be extremely useful for such measurements plus many
> > more. Info can be found at: http://w5big.com/
> >
> > I've no pecuniary interest, just passing it along.
> >
> > To follow up on Bob's suggestion about the Measures' designed
> > balanced tuner it in the February 1990 QST and available from members
> > only section of the ARRL web site.
> >
> > Danny, K6MHE
> >
> >
> >
> > --
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> > PM
> >
> >
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