Further to the SWR vs Resonance thread, I have started a new thread here. Have a look at https://youtu.be/-F7KYLO4Bkg?si=v6utQyiV5rKRwYPi There are some excellent comments posted as well. Should we mo

If you are going to use a high-value resistor across your transmission line, you will not only have to watch the power dissipation rating but its voltage rating in a high-power and/or high VSWR situat

I came across an Introduction to Network Analysis presentation by Keysight that I thought those new to the VNA might be interested in reading. It covers Transmission lines, S parameters, Smith Chart,

NanoVNA have L/C Match function (Marker->Measure->L/C Math in last firmware) This function calculate how compensate measured impedance to 50 Om

I think these RF test boards help, trains you on results, if you have set the vnanano up and calibrated correctly, getting the prescribed results gives us ou some confidence in the nano.

Hello everybody: I just uploaded to the archives section a Spanish translation of the excellent beginner's guide published by Martin some time ago. I hope it serves you. Link: https://groups.io/g/nano

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 intended

A video I did up last summer on how to use the nanoVNA to measure the resonant frequency of crystals. The intended audience is those who are not wanting a complete and exhaustive characterization of c

Well, I'm an electrical engineer and I found it very useful. Zack W9SZ

https://youtu.be/_vvCBarRaPY Here’s what I did to measure the common mode attenuation of a current balun that I recently constructed. -- VE6WGM

Upgraded and expanded version of the "Absolute beginner's guide to NanoVNA" v1.5 has been added to file section of this group. A detailed chapter "The firmware upgrade" has been added. As always I am

Return loss has nothing to do with antenna radiation or efficiency. It is a measure of the impedance match between a source and a load. An antenna with high ground losses could look wonderful from a r

Keysight webcast RF Microwave Signal Chain & Network Analysis https://gateway.on24.com/wcc/eh/2189474/lp/2292318/rf-microwave-signal-chain-network-analysis?partnerref=EML-FMRFB2B1rerun&elq_cid=1002152

Hi I am new to this group and this topic is kind of old but maybe the problem is still there. I had the same issue and I got it working in this way: open file setup.py and, at the end, replace install

If you're interested in modifying/hacking/playing with several of the NanoVNA apps written in Python, there is an open-source area on Github with a complete intro on the subject: https://github.com/we

On Mon, 13 Jan 2020 at 22:12, hwalker <herbwalker2476@...> wrote: > On Mon, Jan 13, 2020 at 01:05 PM, Nels Nelsen wrote: > > " … Your review of the QEX article on the nanoVNA is very appreciated

Its in the files section of the Nanovna group under presentations. On Fri, 10 Jan 2020 at 4:23 PM, uni berry<uniden355@...> wrote: Hi Luc, Could you please show me the link for the english trans

166 µH is a pretty large inductor and likely has a pretty low self resonant frequency. Try 'de-Qing" the inductor by parallelling it with a 4.7 k to 10 k carbon resistor. If those work, increase the r

Thanks Alan, I have some work to do here. A ham radio club tested it on a spectrum analyzer and saw the attached. I would like to see the S21 response from the VNA after I clean it up a bit. Thank you

It's a $40 gadget right? Let's have a healthy new year and we now a new free trade agreement between us so communications paths are open Watch out for open mics and two faced silver dollars or what we