I did a comparison calibration with the NanoVNA itself and NanoVNA app (DiSlord version) using a cable that was 30 cm (12") long. Results were better than the 3M cable I posted earlier but I think I will stick with NanoVNA calibration and no longer calibrate in NanoVNA app.
Hopefully DiSlord or Owen Duffy will investigate as they seem to be the only ones modifying this program.
Roger
Roger Need
