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Use a VPN to connect to the Internet. While there are free VPNs, you should be able find a good deal on a lifetime plan for a premium VPN service, as these are preferable, through Groupon or

I think this might be better posted in the group manager's forum. A web search turned up several instances of this over the last few years. You could also contact GIO support about it. And it never

If you can put together a small computer / display with an RTL-SDR unit, that would work great for that purpose. My favorite USB SDR unit so far is the FunCube dongle. Zack W9SZ

The NANOVNAs are not the proper instrument to use for sleuthing RFI. A battery powered receiver in the AM band is excellent. Also, the TinySA is a small highly affordable spectrum analyzer which is

So many smmall devices and somjetimes power supplies generate RFI. Would it be possible to add a sensor to assist in detection, identifion and measuring RFI from such devices. Seems a logical

I say that, to follow what you are discussing, which seems interesting to me, there is a cruel lack of diagrams. F1AMM (Fran?ois)

But the smith tells you a lot about the frequency response over a given area... On single port test i measure Return loss... Swr... Phase.. And Smith Dg9bfc sigi Am 08.07.2022 11:56 schrieb Arie

You can measure the insertion loss of a common mode choke made from coaxial cable that is air wound or wound on a ferrite core by connecting the shield end of the choke between the center conductors

If not interested in Smith Chart, touch the nanoVNA's display, then choose trace, switch off the Smith trace. 73 Arie Op 8-7-2022 om 07:39 schreef Observer:

Hello nanoVNA without technicality seems unnatural to me. It is a measuring device; you must therefore master what it measures, otherwise it will not be too useful to you. The current use of the Smith

Maybe it's better to say what you want in stead off your non-interested. I personally use it for that, what are your intensions. 73 Alex, PE1EVX

Hello Mito, In the differential mode how will that internal common ground affect Now I have internally bonded ground between shields at Port 0 and Port 1, I see sometimes a transformer when measuring

Also: /g/nanovna-users/wiki#For-Beginners-and-Experienced-Users David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email:

There are a three books you might like to look at: https://www.goodreads.com/book/show/50208738-a-guide-to-the-nanovna https://www.goodreads.com/book/show/50624118-the-ultimate-guide-to-nanovna

Hi, I am a newbie here and on nanoVNA Any online sources for how to use, without too much technicality, for antenna z, resonance, lc resonance and L inductance. Not interested in Smiths

Miro, the nanovna is designed to measure this way - think of the calibration you do for a thru S21 measurement; it calibrates the error due to the cable and ground paths. For measuring the choke,

Some really good suggestions, but let me highlight "my problem" here :) I'll only focus on measuring S21 in differential mode using 2 port setup! On the port 0 I connect shield and center conductor

Anybody have any hints on getting Earthlink to stop blocking groups.io?

I do this a little differently, for simplicity, as discussed in some of the message threads (search for CMC, and you will find lots of methods/info from discussions several months ago). For insertion

As you said, short the input terminals and the output terminals and measure S21 between the terminals with them floating. With the phase and magnitude of S21 the common mode Z can be calculated. There