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X = 2*pi*f*L X? = -1/(2*pi*f*C) If L in nH and f in MHz, then X = 2E-3*pi*f(MHz) * L(nH) if C in pF and f in MHz, then X = 1E6/(2*pi*f(MHz) * C(pF))

Hi I have always used the Smith's Chart with the standardized values of the RΩ +/- jXXX impedance. In the NanoVNA H4 the measurement makes it as RΩ + XnH or RΩ - XpF. My question is how I can

Very good assessment, Roger. The 269 was designed during days when the PIC was king. While it does a lot of functions, it’s not easy for the end-user to cal. You Kits as a company can’t keep any

Roger, Thank you for the detailed explanation. I and others appreciate the time you took to answer my question. Dave K8WPE David J. Wilcox’s iPad

I designed and 3D printed a case and sleeve. The design is free to use, copy, modify as you so wish. https://www.tinkercad.com/things/5RlbLJ3FPHG

Thats insteresting Thanks Martin N6QLH [email protected]> wrote:

The NanoVNA is a two port Vector Network Analyzer that is capable of much better accuracy than any of the other devices you mentioned. It is also a more complicated instrument with more features. The

Mine is different Mine flashes while charging, and then turns a solid red when fully charged. The light going out makes no sense to me. How would you know the difference from fully charged, or it lost

Thanks for all the replies. The red light finally went out after charging for another 4.0 hours, so I guess it is fully charged now. Apparently in my unit, "Red" means charging and no LED means "fully

Hello Tom, the NanoVNA-H rev3.6 red LED is on to indicate charging and off to indicate charging is complete. The charging current of NanoVNA-H rev3.6 is about 250mA, and it may take 6 hours to fully

Fransesco, Thanks for the site and reminder. Dave K8WPE (also a geriatric memory at 77) David J. Wilcox’s iPad

https://www.qsl.net/kp4md/mfj202.htm Please read this page: *On the "OLD DAYS" the calibration was necessary like today you needed to balance the bridge (this came from my geriatric memory).* *Sent:*

Can someone explain why my YouKits FG 01 and RigExpert A600 (and even my old MJF 269) analyzers don’t need calibration every time I use them compared to the NanoVNA? What is the difference in the

Your requirement appears to be incoherent. Initially you said: Now you're saying: The answer to your in

There are numerous articles and videos available which discuss why a VNA requires calibration. A quick Google search will provide articles in whatever technical depth you want. I suggest that you just

The LED should flash red while charging, and stays on steady red when fully charged. 90 min of use may not have discharged it very much. wrote:

You can turn calibration off and it will use no slot. But there *are* variations between units. At least between the two I have.

I am a new owner of an Aursinc NanoVNA-H, HW Version 3.6 Charged it for 4 hours out of the box, but only RED LED solid. Used it for 90 minutes matching mobile HF antenna; seems to work fine. Now to

I think we all agree with that :). My question is how to make it more useful (or easier to use) without breaking the bank. I hope the answer is to have a feature request for one of future releases

It is always a good idea to watch the behavior of the various calibration standard traces as you perform a calibration; you can spot an incorrect or damaged standard or poor connection just by the