Agreed.
Note that the 8754A(?) computer based VNA that went to 18 GHz cost prehaps
$80,000 in 1970 (a guess). Probably more w/ options. That's $450,000 in
today's deflated dollars, so $700,000 is not such a bad deal.
I don't have quite $800k to blow this week after buying Christmas
presents. LOL.
-John
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On 25 December 2012 00:24, J. Forster <jfor@...> wrote:
You can use a SNA for quick and dirty tests, comparing a known, high
quality, component to the DUT, especially if you have a Storage
Normalizer, but in no way is an SNA a substitute for a VNA.
Agreed. That is why I was surprised when someone said a scalar one was
more accurate.
The only regime where they are used today, AFAIK, ia at frequencies
above
those practical for VNAs, over 40 GHz or more.
Agilent sell a VNA for 110 GHz. At $691,437 for a 4-port model, I
don't expect Agilent sell too many of them! If you buy all the
options, it will be over $800,00.
Dave
