Hi,
Interpolation problem not only nanovna exist.
If you use nanovna saver 10 segment = 1010 points data. But another interpolation errors occured, because double calibration not ok.
Nanovna saver 1010 point calibration fully ok when use raw data and calibrate all point in nanovna saver, not use pre calibrated and interpolated instrumet data. I requested this method. I think scanraw command the key.
73,
Lajos