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Just to document this a bit better - I placed my calibration data on "c1," which I'm recalling (and I see on the left side of the screen, on top) before running measurements. I calibrated for a CENTER

Hi all, Having some confidence I've completed calibration on the band of interest to me (I think I did 10MHz to 11MHz), I am getting the same titled scan of pretty much any number of filters I threw

I purchased the H4 from Alibaba. I'm very satisfied. It was $70 USD delivered in less than a month. The vendor was recomended by a microwave group I'm a member of. ?___ Sent from my two way wrist

I am looking for a nanoVNA that will cover 23cms band and has a larger screen that my old eyes can see :-( At the moment, there are several Ebay sellers offering what appears to be the 4" screen

I agree with you. My problem was how to modify this ratio into the NanoVNA firmware; thanks to DiSlord, who modified the code with "my" oscillator value and giving to me the modified dfu file, i was

Hello Dave, The screen shots you appended show just a quarter of thr screen. I think you wanted to append the whole screen size of the nanoVNA. I thought you have already seen that. 73, Rudi DL5FA

Hi Rudi what did you wish to know? My nanoVNA was the 'BAD' clone without screening cans over the input stages and exhibited unwanted vectors due to noise pickup when is Smith Chart mode. Since adding

That's the method HP uses in a lot of their gear. They use a very stable TCXO and to calibrate the frequency you change the divide by ratio. On my 8920 to calibrate the frequency you input a 10MHz

Why not ? As i want to replace my oscillator in the future, a good idea to reverse to a new value ! Thank you one more time and all the best. Rudi

Good, possibly in future i add command for allow user set this correction.

Hello Dave, Your screen shots does *not* tell the whole story. 72, Rudi DL5FA

BINGO ! After upgrading with your DFU file, i enter 100MHz in "CW" mode and get 100.00010 MHz at the GPS locked frequency meter. 1 ppm instead of the initial -85.5 ppm ! Fine Job DiSlord and many

I suggest you launch a kit for those who bought and did not have a small display. Case + display module 4 inches + firmware.

Select target id 00 Internal Flash 64 sectors or And press Upload

Then you upload file from NanoVNA programm read all flash 128kB and save to file Then formware created, not used space not stored to file. 82kB correct file size Yes it Ok

After reading the option "01", seems that you dfu file should be written into target option "00" (internal flash 64 sectors). A 2nd point: NanoVNA v0.8.4.6 Xtail 25997748.dfu is 82 Ko but the uploaded

Hi DiSlord, I installed DfuSe, connected to the NanoVNA after "Reset and enter DFU" activated; on the DfuSe screen i have 2 Targets options: -1- 00 Internal Flash 64 sectors or -2- 01 Option

A new technical support page for the NanoVNA-V2 is available at https://nanorfe.com/nanovna-v2.html . I believe Gabriel posted here, or elsewhere, that the NanoRFE Foundation will be taking over the

Ed, *1)* You've got a typo in your callsign: it should be KC1D*YK* (ROKBL!) *2)* In terms of verifying the fundamental measuring impedance of the nanoVNA, that's a lot trickier. The essence of most

Hi just spent a UK windy afternoon confined to my radio 'shack' , so decided to upgrade the screening on my 'basic' clone nanoVNA to see if the INPUT 'noise' could be reduced. I made the screens out