Hi Arie,
Does Nanovna Sharp output a different format than Nanovna Saver? Just looked at an s2p file from sharp. It appears to be the S21 linear and phase angle. The DUT is 15 turns on a high permeability MnZn core. Goes thru resonance about 1.83 to 1.92 MHz as S21 goes thru a minimum and the phase angle switches from a neg angle (inductive) to a pos angle(capacitive). As shown in the attached s2p file.
73, Pete
