Manfred,
Thank you for your detailed and informative post. Lots of good information and tips on how to measure components. I have not seen the same problem with cables up to 30 cm but I will keep what you posted in mind. I agree with you about alligator clips being a poor test jig. It is so easy to construct a test jig that I never use them.
The NanoVNA MOD v3 software has some nice plotting features but I prefer the NanoVNA app by OneOfEleven that works with the 1.0.45 firmware by DiSlord. The firmware does 401 points on the -H4 instead of 101, faster data transmission and some nice new user features on the NanoVNA. The NanoVNA app is the best PC program I have used to date with nice scaling and plotting features, trace smoothing, calibration averaging and the ability to do firmware updates and much more.
That clothespin idea is really interesting for testing SMD parts. I am going to build a jig using this method. If you have one already built could you please post some pictures.?
You mentioned the serial and parallel impedance measurement of components. This is not familiar to some users and I will be doing a post later showing how this can be useful when measuring higher impedance parts.
Thanks for joining the discussion and sharing your experience.
Regards - Roger
Roger Need