#319: Measuring Crystals with NanoVNA and other tools

NOTE: The newer V2 versions of the NanoVNA are NOT suitable for crystal testing due to the short measurement cycle they use. The unit used in this video is the NanoVNA-H4. This video shows several methods for measuring crystal parameters using the NanoVNA and other tools. Timeline: 0:00 Introduction 0:10 The Basic Crystal circuit model 0:58 The measurement reference paper by K8ZOA 1:44 The Equipment Used 2:36 The Measurements & Methods used 3:00 Tips for using the NanoVNA for Crystal measurements 3:49 Defining C0 - the holder capacitance 4:43 Measure C0 with the AADE L/C Meter 5:11 Measure C0 with the DER EE DE-5000 LCR Meter 5:30 Measure C0 with the NanoVNA 6:19 Summary of C0 results 6:28 Custom 50 ohm "thru" fixture for the NanoVNA 7:29 Overview of NanoVNA traces used for crystal measurements 8:50 Measure Rm with NanoVNA 11:08 G3UUR Method for Cm & Lm 12:42 NanoVNA Phase Shift Method for Cm & Lm 15:07 NanoVNA -3dB Method for Cm & Lm 17:01 NanoVNA Series/Parallel Method for Cm & Lm 18:50 Summary of results Link to the K8ZOA paper: https://www.mikrocontroller.net/attachment/473317/Crystal_Motional_Parameters.pdf Link to the G3UUR test oscillator build video: https://www.youtube.com/watch?v=blalAktxFoI Link to the video notes pages: http://www.qsl.net/w2aew/youtube/crystal_measurements_nanovna.pdf