I test ojisankoubou Z normalization code, adaptate it to NanoVNA
Calibrate NanoVNA by 50 Om load
Measure 25 Om (SWR = 2 and dot at left smith)
After add DUT impedance as 25 Om and calculate how it should look
And see SWR = 1.0 and dot at center of smith
Screenshot from my H4
