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NanoVNA-F is not compatible with NanoVNA App because the -F does not use a binary transfer protocol. Roger

That will be the challenge - off isolation. (and the usual issues with biasing, just like using diodes as switches) You might look at T/R switch literature - It's a similar problem - slow switching,

Miro, Even if we assume that you can bias the MOSFET properly in the presence of RF and try to use it as a switch, and even if we assume that it behaves pretty well in the ON state given its pretty

OK, this one is only artificially aligned with this group buy using NanoVNA to actually measure what I expect to be answered in a more "academic" fashion :) How does MOSFET behaves in the triode

https://nanovna.com/?page_id=141 :) -- F1AMM Fran?ois

Can someone provide the link to pre compiled version of NanoVNA-App for Windows - link provided here https://nanovna.com/?page_id=141 does not work, and github page only offers source so one can

Thanks The url does not point to a use of the nanoVNA-App software I have "COM9" which is displayed and Connected/Disconnected which switches. If I click "Calibration", [Click to open Calibration

Roger Thanks for the annotated screen shot. Very helpful. I am a newbie, lying in the weeds observing what is going on. I have made a copy of your post for future reference. Thanks again. Don KC3MPO

Yes. I agree, R&S has published some very good information. My current questions revolve, very specifically, around fixturing and calibration for measuring "soft" ferrites, of which there is much less

Attached is a description of what all the buttons are used for. You right click on a graph for more options. This is a link to a previous discussion in this group about NanoVNA App

Fran?ois, you can easily learn to use NanoVNA App by the good old tried method of clicking on each icon and seeing what it does! The one thing you need to know is to right-click on the graph, to get

** Thanks. It's pretty but I don't understand this software at all. It runs on my Windows Seven. Is there a notice? I'm like a chicken that just found a knife :). I use nanaovana-saver which I think I

NanoVNA App Roger

My nVNA started giving me garbage results once. The problem went away when I did a "reset calibration" followed by another calibration. I assume a bad cal got it into a divide-by-zero math situation

Hello With which software do you produce these pretty curves? -- F1AMM (Fran?ois)

Brent, I use a small, simple jig for such measurements. I use just one port, and measure directly. No resistors nor any other stuff. Of course calibration is done at the very spot where the DUT will

It looks to me that the antenna is faulty, with a loose connection inside. The symptoms sure seem like those of an erratic connection. -- Doug, K8RFT

I had a similar problem with my NanoVNA.? I would suggest that you change the SA612 that is near the S11 port for a start.? My problem actually was a bad SI5351.? That is harder to change due to

After you've done a calibration, reconnect the open short and load to port 0, and observe S11. In log mag display the first two should show 0 dB, and the load a negative value less than -20 dB (-40 or

I bought my nanoVNA-H4 back in 2019 and used it all the time for multiple purposes till early this year. One time i went to measure the SWR on a new antenna and the values were crazy and changing all