If you pay attention, the Smith Chart display on the nanoVNA lacks all units on its axes. This is because this display is intended to see where the impedances are. For measuring, instead of read it on the graph, such in the old times, you use the markers which give you accurate results.
For RF designers used to see the results in a Smith Chart, it is invaluable. You have to learn to interpret it, but here are not a good substitution.
Regards,
Ignacio, EB4APL
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El 25/03/2020 a las 20:10, pez@arg escribi¨®:
Smith Chart : In this computer era, this extremely high-effort demanding,
highly-inaccurate, old-time graphics tool became completely obsolete,
because it is a totally useless one in every other aspect except that one
of "just take-a-look demo" - or of fancy impression making to unsuspected,
innocent, inexperienced beginners, of course
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