Hi all - & thanks very much for your prompt replies!
@Jim Lux:
Also, bear in mind that the stimulus on the NanoVNAs is a square-ish wave, not a nice clean sine wave with low distortion and spurs. <<
.. Hmmm, yes, I am aware of this, however, I just do not know how it will affect the circuitry in question, so I thought I'd give it a chance. But maybe you have experiences with this already?
Gotcha - that's kind of what I thought, but the OP mentioned ADCs and DACs. And that is a different kettle of fish, measurement wise. <<
.. What I would like to be able to measure impedance/frequency-wise is the interaction between the decoupling capacitors and the DAC or ADC and the placement of Vias etc. I can simulate this to some extent but not having expensive software available I cannot be absolutely sure these simulations are correct. And then - as I understand it - there may also be "hidden" internal decoupling capacitances in the DAC/ADCs that may alter the response of the DAC/ADC PSU pin responses .. So it just would be great to be able to verify things by measurement - that is also not too expensive.
@AlexSpb:
Regarding "original NanoVNA", I just have purchased one of the cheap clones from AliExpress, that are still available. <<
Ok, great! Any chance you have a link to the one you bought? Might it be identical to this one: ... apparently this is a "Hugen" version but if I am not mistaken these "H" versions are exactly the ones Joe mentions in the video may have firmware errors ... ? But maybe this is corrected with:
Then just flashed it with the recommended FW version from Joe's git repo. << ...
Well, admittedly I am not a programmer so I hope I can also ask you to verify that you downloaded this software: nanoVNA_original_2p10.zip from the link below?
Or is there some other software that I am missing here?
I'd appreciate your feedbacks - new to this so insights are really appreciated ;-)
Cheers & thanks,
Jesper
