Hi Gabriel and all,

Using NanoVNA_QT, I have seen a wrong displayed phase value between graph, and marker information. Measurement is here related to arg S21, see picture below. What is sure is that the right value is provided by the marker. Vertical scale seems not relevant here. The same measurement has been done with NanoVNA saver and s2p process confirm this point. Please note that the export s2P file provided by NanoVNA_QT is right.

I have also tested under Windows 7 and Linux (Ubuntu) operating systems, with same results and behavior. Export s2p file is also added to this message.

73 from Jean-Roger / F6EGK