Hey folks I just received the LiteVNA from R&L. It powered up ok except for responsiveness on the screen. It set date and time and accepted calibration. Now after lunch on power up it's stuck on a Smi

It opens fine on one of my old computer using Adobe Reader 11 and also with the latest version of Adobe Reader DC for Windows. Roger

Hi Roger, Which Acrobat version are you using to open this file and others generated by the deepl translator? I have version 9 Pro Extended and it refuses to open it, saying that an updated version is

I found this online ( http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/indtor.html): [image: image.png] As with air wound inductors, the inductance for fixed µr, the inductance varies as the square

Yes the Al will vary with frequency for ferrite toroids. The reason is that the permeability of the ferrite toroid varies with frequency and the Mix (31,43, 75) etc. has a significant effect. Powdered

Use the deepl translator. It will translate pdf files and keep them in the same format as the original. https://www.deepl.com/translator/files Attached is a translation to French of one of Arie Kleing

I have a lot of bad luck with Adobe. I had a CS3 version with Acrobat 8 pro (+ license) but it refuses to work. With Adobe it's hard problems. It is therefore insoluble for me to translate your .pdf a

Hi, You can translate it doing the following: - Open the document with Adobe Acrobat - Select the whole text and do copy (Ctrl-C) - in your navigator go to go to https://translate.google.com/ - In the

It's a pity that your pages are not in HTML; it would have allowed Chrome to translate them to me in French, online. In English, I can't follow. thanks anyway

Hi, I wrote several articles on nanoVNA measurements. You can find them in English here: https://pa3a.nl/nanovna-metingen-and-smith-chart-articles/ There's also a part about determening toriods, mu's

Hello I have very little experience with toroids. I made some RUTHROFF transformers but nothing more. On my cores, I note that the Al is not constant. Is this normal ? TORUS ==== Outside diameter Ø 10

Amidon buys many of their ferrite offerings from Fair-Rite. Dave - WØLEV

Dear Dave, many thanks for perfect explanation 🙂now it makes perfect sense for me, you explained it very well. I will watch videos you have included. I was more oriented to Amidon materials but FairRi

Dear OM, I'm interested about various measurements with NanoVNA but now I'm fighting with some fundamental questions not related only to nano VNA. but still unable to find answers, even after reading

Dear OM, I'm interested about various measurements with NanoVNA but now I'm fighting with some fundamental questions not related only to nano VNA. but still unable to find answers, even after reading

Thanks Wes, thanks Martin, I hope you find it useful. Also appreciate any suggestions for improvement. Also, a big thank you to Roger who has identified a couple of bugs and suggestions for improvemen

There's ideal and there's real. No real component behaves ideally.

It could be due to several things: - Something to do with your test jig. What are you using? Hopefully not alligator clips. - What frequency does this occur at? - Are you properly calibrated (good loa

I have observed a strange behavior with the nanoVNA measuring an air core coil through CH0 only (i.e. S11). As I would expect, L shown on the Smith chart is very stable until I approach self-resonance

Air core. I understand that ferrite will have variable permeability...