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I was fortunate enough to get some high-quality PTFE (Teflon) coax (RG-174 sized) SMA to BNC jumpers - and these hold up much better, probably because they have a small piece of heat-shrinkable tubing

This is how I am driving the Mag loop

Hello, I am looking for any references that explain the formulas used by the NanoVNA to do calibration and measurement corrections. I have looked at various six- and twelve- parameter corrections.

Hi I used the following approach with my mag loops. Capacitor is driven by a stepper motor controlled remotely (Arduino + Nrf24l01 module) When I decide to have a QSO session, I first run a

Hi all, regarding saving the scan and download it later, I think a nice firmware feature would be to schedule a delayed scan followed by a pause after the scan. This will allow to hang the NanoVNA to

Check out the ModularTuner http://www.github.com/profdc9/ModularTuner This is an automatic antenna tuner with a directional coupler that you could program to search for the minimum SWR. It can be

As a first step I will model the reference Z0 ( normally 50 ohm ) as a RLC combination If that is not enough I will add some unbalance to the moebius transform. -- Erik, PD0EK

Ian, try: python -m pip install --user --upgrade pip and next PyQT5 install I hope help Gyula, HA3HZ

Hi Oristo When the cal kit calibration kit is loaded in the VNWA software you simply open a custom trace and in the Expression line write s_load or s_open or s_short or s_thrumatch or s_thru then the

This "deembedding" may do it: https://translate.google.com/translate?hl=en&sl=auto&tl=en&u=https%3A%2F%2Fblackmagicrf.net%2FDeembedding

Rune, I've put the machine to bed for today so I will revert tomorrow with version number of installed PyQt5. What I can say is that I removed the # before the version checker before I did that

edy555 basically calibrated with the test jig as if ideal

One problem is that scikit-rf wants S11 files for ideal SOL but I did not find how scikit-rf can generate S11 from e.g. delay, R, L, C values. Since I have SDR-Kits BNC cal kit, perhaps S11 for those

Hi Oristo Than you for an interesting link. The Google translate to Danish requires a special study ? but I will give it a try Kind regards Kurt -----Oprindelig meddelelse----- Fra:

I'm trying to create a VNA error model to compensate for errors in the bridge and the Z0 reference Yes. Results match nanoVNA firmware Thanks for the links.! -- Erik, PD0EK

Hi Ian, what version did you install directly from Ubuntu? NanoVNA-Saver should run with that, assuming it's PyQt5 and not PyQt4 - but I haven't tried it with older versions. There's nothing in

Rune, I've tried that and you are right, even removing the version requirement altogether results in an error. I have tried to install PyQt5 directly from Ubuntu and, while the basic OS install seems

Hi Sam, what operating system are you using? I have tested 0.1.4 on a virtual machine with a 1366x768 screen, and it fits without scroll bars - *just* - with the default setup, on Windows 7, at font

Hi Ian, you can try replacing the "==" in setup.py with ">=" - seeing if there's a newer version. If that fails, try removing the version requirement entirely - but I don't think there is a version of

Octave calibration lacks a bridge compensation model? Results for nanoVNA match those done by its firmware? I cannot sort whether scikit-rf has a more elaborate model: