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You want a Linux compatible way to calibration from raw data? You might look at SciKit-RF - a python package that does all the needed calculations, as well as drawing plots/smith charts, etc.

My fork for this App: https://github.com/DiSlord/NanoVNA-App Autor write it on C++ Builder (Use free Embarcadero? C++Builder) https://www.embarcadero.com/ru/products/cbuilder/starter/free-download

Khalid, Unless the manufacturer has claimed this device uses a command structure that is compatible with the NanoVNA & LiteVNA series, you will have to write your own interface routines in NanoSaver.

Nick, Nanovna-App is opensource and available on github: https://github.com/nlroth/NanoVNA-App-D Feel free to port it over to Linux - if you dare.....;-)

Like the raw data calibration facility. Can this application be built on linux?

Ok I am going to give it a try I will flash using nanovna.app (I won't be able to save what I got on the unit now) your firmware that was post a few messages back, and I will use your modded software

On LiteVNA (or V2 modded by SD card + my fw) possible dump firmware to card from Expert Settings. For V2Plus4 only if use ST-link. After hold button and power on, you see only black screen, but on

Yes I found it in the menu, and when doing the hold right button the display won't say DFU mode just a white blank screen correct? I won't be doing the ST-link programmer way :( I was hoping there was

You found menu 'enter in DFU mode' on V2Plus4 device? Or no? For enter in Bootload mode (used in device CPU not have DFU mode, it use bootloader) need hold right button (if connectors up) and power on

I was just thinking if by loading that firmeware and the LCD don't work then it would be hard to get unit into DFU mode? unless there is a way with using the buttons?

ya, that's what I am thinking to, I can load stock firmware back if you need. I did post in other forum too. I can use the nanovna.app to load firmware it does detect when it's in DFU mode, so I would

As i know all (but not LCD module) work, you always can load last firmware from official page for restore. https://nanorfe.com/nanovna-versions.html

hummm maybe i am missing something it won't let me join that forum :(

Ok that's is good to know i will ask them. you was saying about the display unit could be newer, what would happen if i load your firmware onto a "new" display model? if by doing that the display has

I do not track the development of these devices, the developer asked to leave support. Therefore, it is better to ask him on the site /g/NanoVNAV2 Firmware for the device that I have

Ohh, I need hardware too? And it's only part of the firmware? My has firmware version 20220301 if that tells you anything?

/g/nanovna-users/topic/86678150#25341 Roger

Seems to me you are conflating reactance with resistance. 0 reactance by definition is the resonant point.? Has nothing to do with resistance or VSWR directly.? Resistance and subsequently VSWR are

Point well said, bravo, thanks Jim. Mike C.

On 8/24/22 11:39 AM, TG Frerichs wrote: > I keep seeing the statement that a resonant halfwave center fed dipole has zero reactance at the feed point, and I don't think this is always correct. > For a