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You're testing two bad clones, and the results of the two tests should be consistent, but you're using a good cloned image when presenting the test data, which can be misleading.The group has already

It may be worthwhile to attempt soldering the prongs on the other side because it will not only improve mechanical reliability but may also benefit RF performances (however, the RF improvement will

https://hexandflex.com/2019/08/31/getting-started-with-the-nanovna-part-1/ I have been working on what I hope is an easy to follow introduction to the nanoVNA. It's fairly basic and aimed at users who

Has anyone though of upgrading the STM32F072C8T6 to other MCU with larger SRAM and flash memory? The original NanoVNA author, ttrftech, uses STM32F303 for his other project CentSDR and has the chip

Jump on in, Reg, the water's fine! Personally, I would prefer that the TDR function be built into a Windows app (e.g. NanoVNASharp) -- I find using the the NanoVNA's touchscreen more than a little

to Frank S, I am interested in ur "kit" but cannot find ur contact info, sri as I am still noobie lol pls contact me @ n8aum-at-yahoo-com

I am absolutely blown away by this thread. I was working on TDR via VNA, but had not started to write any code. Just looking at the mathematics very closely. Particularly because of the manner in

Hello Would it be possible for you to post your s1p file to Github? I've just It is obviously good to have code to do the TDR analysis on a .s1p file. But having the TDR in real time is very useful.

Here is the MENU flow chart: /g/nanovna-users/files/Miscellaneous/nanoVNA%20Menu%20Structure%20v1.1.pdf This is helpful as it permits you to get an eagle eye view of the instrument

Hi Bruce, Try this file: /g/nanovna-users/files/NanoVNA%20Calibration%20Considerations%20and%20Procedure_v1.0.pdf It is in the FILE DIRECTORY FOLDER. Also, there is a MENU breakdown

(forgot to add...) ....And so I'm happy with the results from the Matlab TDR script. - Jeff, k6jca

Thanks very much, Rune. I was wondering why they weren't exactly the same. And so I compared your code at https://github.com/mihtjel/nanovna-saver to my Matlab script (listed, below). Functionally,

For those looking for the compatible 3.2 inch display, just do a search on eBay with the following two items in the same line: ili9341 3.2 You'll see individual panels for sale. Check the pinouts in

It's always bewildering to wander into someplace and find that you're trapped inside someone's jargon jungle. I've found myself in that shape when I wandered into the nanoVNA Users group. I'm a noobie

Wow! Have I got a lot of catching up to do! I tried, but was unable to find out anything about the xtal which on mine is marked "H26.0 D439" and measures ~3.6 x 2.1 mm. Between xtal and cable

I forgot to screenshot the lengths my software gave, so I'm not sure. Whoops. But the 8.5m coax is still connected, and currently shows at 8.516 at 0.66 Vf measured to 800MHz. So we're within 8mm of

Many thanks, neb! My length calculations are 30.056, 1.24, and 6.814 meters for your three files. Quite close to your length (but close enough?) Best regards, - Jeff, k6jca

Many thanks, Rune! Using your files, my Matlab script gives me the following lengths (assuming Vf of 0.66): - RG58 measured to 60 MHz: 1.424m - RG58 measured to 800 MHz: 1.363m - RG213 measured to 60

Hi Jeff, As per your request. Kind regards, neb

Thanks Rudi, I'll get those added! -- Rune / 5Q5R