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@igor-m: that happens when you do not calibrate the specific frequency range prior the Measure->Cable (calibration made directly at the S11 connector). I've tried here with H4 and v1.2 flashed in

Hi Dislord, I posted 2 messages yesterday but they were not published here (no idea why). Also pictures did not pass through. H4 v1.2 (built form sources): It was my bad - I forgot to calibrate the

Ok, my bad, I did not calibrate the range before the cable measurement, now the H4 measurement shows Z0=49.71ohm and length=162mm. Fantastic!

Your picture shows you do with 51 points. Did you try with 101 or 201?

Et voilà Roger, thanks to you !! 73's jean Marie F5VLB

I flashed v1.2 last night. Using cal from 2.5-32.5 MHz, 401 p. Changed freq range to 3-5 MHz I have 3X RG316 3660mm 4580mm 4580mm One connected M-F, and the other connected M-M, for a total length of

Thanks for the link, Roger. I'm going to try using it with NanoVNA App. If I feel adventurous, I may try fixing the screen. Thanks for your help. Perry [email protected]> wrote:

Thank you Roger, my friend F5WK Michel followed the procedure and all is working for him. Will do the same today. Regards Jean Marie

The following files and folders have been uploaded to the Files area of the [email protected] group. * /user manual and menu maps/nVNA-H4 v4.3_MS firmware 1.2 menu map 0100 AN14.zip (

Thanks Rich, that's very helpful for those of us using EXCEL for data manipulation or graphing. Your equations are much tidier than what I was using. Rudy N6LF

This sounds like you may have a defective screen issue. I recall others had this problem and opened up the unit and checked the solder connections. Some cured it by gently re-soldering connections. If

I'm using the latest version installed a few days ago. Perry [email protected]> wrote:

Zack. https://github.com/DiSlord/NanoVNA-D/releases

A few days ago, I was able to get the unit into DFU mode and it was recognized in Device Manager. I installed the latest Firmware and was still getting a white screen. At the suggestion of another

Hello Roger, Op di 31 mei 2022 om 19:40 schreef Roger Need via groups.io <sailtamarack= [email protected]>: It is not me but

Roger, It now shows in Device Manager. The screen is still while but I can connect with Nanovna Saver and calibrate using the Calibration Assistant. Do you think it's usable when connected to the

The measure feature works well...from the user manual 1.2.5 MEASURE 3. CABLE S11 Choose a frequency range such that the cable length is ~1/4 of the wavelength in the middle of the range. This feature

I do not own a VNWA so I have no first hand knowledge to share. From what I have read it has better specifications than a NanoVNA. You could join the VNWA group and pose your question there...

Hi Roger: Thanks for your comments and focus on dispelling the notion that S11 with nanoVNA might be inappropriate for high(er) impedance measuring. Re: “The intent of my post was to reply to

Hello, Being a past bata tester of FW for this unit, I have dealt with your problem. The way I cured it is as follows: First shut down the NanoVNA. Remove the back cover. Using small tweezers or what