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Re: [TowerTalk] impedance meter recommendations pse

To: <>
Subject: Re: [TowerTalk] impedance meter recommendations pse
From: "Keith Dutson" <>
Date: Thu, 28 Dec 2006 08:30:25 -0600
List-post: <>
Have you looked at the Palstar ZM30?  I use one but do not know its
accuracy.  It seems to be more stable than the 259B and 269.

73, Keith NM5G

-----Original Message-----
[] On Behalf Of
Sent: Wednesday, December 27, 2006 10:30 PM
Subject: [TowerTalk] impedance meter recommendations pse

Has anyone here had good results from any of the non-MFJ impedance meters? I
have an MFJ-259 and 269 and they are handy to have but not very accurate in
my experience. I have made lab measurements against these and the results
are not as good as I'd like. 

At work I designed a network analyzer for production S21 measurements and it
beats an Agilent 4395A VNA for accuracy. I'm tempted to adapt it for S11
measurements but I'm a bit lazy. Some other time. 

Ten Tec has a unit that looks nice, I think it uses the Analog Devices
AD8302 gain/phase detector. This isn't the best thing in the world but it
would be good enough for my uses. But with a price of $600 I'd like to find
something a bit more reasonable. 

    Dave WX7G

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