开云体育

Maybe the misunderstanding is in the fact that the reflectioncoefficient has another phaseangle than the phaseangle between current and voltage on the load. These are two different things. The

Gregg- I concur with your understanding 100%. Reflection phase with an open is zero degrees and is 180 degrees with a short. Reactive loads (inductive or capacitive) will have phase angles somewhere

Where Roger and I have differed in the past is with regards to the concept of the S11 phase as measured by the nanoVNA. While Roger has firmly stated in previous conversations that there is no

Forgot to my Signature -- Cheers, Ian Melbourne, Australia

Hi Roger et al, I am not about to admit to how many of those misconceptions I have fallen for .... publicly .... :) I have been 'safe' in the analogue, low frequency, ideal component electronic

The use of a small piece of Teflon or other plastic between the contacts of the clothespin for doing the OPEN calibration may be a bit problematic. It will increase the capacitance between the

Was just over reading Roger’s excellent thread on using a VNA to examine discrete components. I figured I should be clear with everyone that the method I presented below is not and was never

The NanoVNA app by One Of Eleven has this feature built in. It records .s2p files that contain the S11 data that you need. You go into continuous scan mode and then click the record button. It

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

There is some python code in the NanoVNA repo that gives examples of how to access the NanoVNA, send commands, and retrieve data. It's somewhat simpler than NanoVNA_Saver, which is also

Roger, I think you basically said it all with this list of pitfalls: I can only add a little about my own experiences measuring components: When trying to measure through20cm long SMA cables and

Adnan, Do a search on the message forum for OCTAVE (similar to MATLAB) There is a lot of info on using it with the instrumentation library - that may be useful to you. ...Larry

Dear All, I want to use NanoVNASaver for continuously reading and storing S1.p data i.e. automating my experiments for long duration tests (few hours). Since there is no LabVIEW tool available for

This is very good. Thank you for sharing! -- VE6WGM

Hi Mike Here is a brief textual overview of what I shared in the video.. To measure an inductor or capacitor, use a shunt configuration (basically attach the component to your nanoVNA using

Hello Roger, Thank you very much for the professional description. I think alligator leads are not useful in VNA measurements above 5 MHz. 73, Rudi DL5FA

References were given as convenient clickable links in the description below the YouTube video. -- VE6WGM

I thought it might be interesting to start a post dealing with how to accurately measure components like inductors, capacitors and resistors on a NanoVNA. As an RF engineer I have made mistakes over

Can the menu buttons/text be made larger? My eyes are getting old :-) The TinySA's menu system is much larger and easier to see. Thanks!

Gregg, I really appreciate your videos but I am old school and like stuff in writing. Would you have this procedure documented? Nothing fancy but just a short synopsis