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On Sun, May 29, 2022 at 12:50 AM, tuckvk3cca wrote:

Great thanks. Any body has a spreadsheet then to convert S21 gain and phase
data into impedances?

There are two methods to Convert S21 to Z. The series method is used for "high impedances" and the "shunt method" for low impedances. These are built into the latest firmware for H/H4 and in NanoVNA Saver and NanoVNA app. You need a very good test jig for S21 series or the phase angle will have errors and the impedance measured will be way off. Also the H/H4 do not have precise 50 ohm source and load impedance so you get errors from that as well.

But to directly answer your question here is is a link to a Web site with a spreadsheet. The link is in the last paragraph.


Here is a link to another one....
/g/nanovna-users/message/17807

Roger