I recently joined the club and bought a NanoVNA, which I think is a "classic" version clone (no case, no shielding). It is currently running NanoVNA-H firmware 0.4.5-1-efbbceca. My current goal is to measure crystal parameters for building crystal filters.
For NanoVNA-V2, there is a special "ojisan" firmware that has easy-to-use menu options for measuring crystal parameters; see , section "LC, Crystal series resonant measurement". Through a series of measurements, the firmware then computes and displays the crystal parameters as shown in the below sample:
Fs= 7.997345 MHz
Fp= 8.0130 MHz
Ls= 13.5 mH
Cs= 29.3 fF
Cp= 7.47 pF
Rs= 17.5 ¦¸
Q= 38791
Unfortunately, this firmware does not work on my classic NanoVNA.
Is there a similar firmware for the classic NanoVNA or NanoVNA-H that allows easy measurement of crystal parameters?
