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If you turn on Transform and select Low Pass Impulse you are in "TDR mode". You need to set trace to "Real" and then you will see the difference between a short and an open. Roger

Why necropost? Lots of current discussions in this group. Roger

I should have said that type 43 reads like an open circuit .

All the units are based on the same hardware. This from "A Guide to the NanoVNA": The current design of the NanoVNA and the name was created several years ago by a Japanese ham under the pseudonym

Google search: NanoVNA menu images Bob KN6UXD

HOME MENU->CONFIG->VERSION Bob KN6UXD

This is a "where is Waldo" on the menu spider-web question. How do start a rescan after I change parameters? Is there an FAQ that beginners should read? A "NanoVNA for Dummies" book that you can

I realize this is similar to a recent topic but a bit different. As the "TDR" function in the nanovan is not actually a time-domain process, is there a wat to differentiate between a short or open

a useful hint when identifying torrides type 31 has resistance across the surface . type 43 has none. Different materials. -- *Gene Ruff*

43 or 31 material are appropriate for HF applications. 43 is better for 20-meters upward and 31 material is best for 160 through 40 meters. If you are sure you have 43 material, there really is no

Dears, FT240-43 Torroid, Can I use my NanoVNA to meassure my several torroids to be sure that I have the correct ones for HF UNUN? any info is welcome 73, Kurt

That is exactly what I do with my own software, but I then have to ask users not to overwrite and files they have personalise. You can't win! 73, David GM8ARV -- SatSignal Software - Quality software

** Ok but the files would be in a .zip it would happen all at once while keeping the structure -- F1AMM Fran?ois

Use NanoVNA-App https://github.com/DiSlord/NanoVNA-App

Now there is a GREAT suggestion for the Nanovna, add a firmware update option to the PC Saver program!! This way we have an “all in one” application to use and manage the nano. -- Regards, Chris

Strange, yes, but personally I prefer it that way, so that you know exactly what is being added to your computer rather than a massive install.exe with no idea what it contains! 73, David GM8ARV --

Did you check it with an ohmmeter? BTW, I noticed in the first picture that you're using/reading S21. Is that correct? And "Transform" was set to "OFF". (but maybe you changed that after taking the

Hello Thank you for the link. It's strange that we have to download file by file. It's done, thank you 73 -- F1AMM Fran?ois De la part de David J Taylor mercredi 21 juin 2023 12:39

The Nano's TDR function can show 'defect' location - even multiple "feature" locations. It shows distance in meters. You move the cursor to the "odd spot" in the trace, and read the distance to there.

Fran?ois, Gyula has already pointed you to the group (thanks). The newer and more capable TinySA Ultra has a "4-inch" screen which is adequate (for me) for many things, but there is a TinySA program