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Re: errors of "error" models
@Oristo - 4 November 2019 - /g/nanovna-users/message/6439 Hello, Allow us, please, to thank you at last for your most motivating us comments, regarding the relative values of s and o,
By gin&pez@arg · #8280 ·
New file uploaded to [email protected]
Hello, This email message is a notification to let you know that the following files have been uploaded to the Files area of the [email protected] group. * /Hardware Mods/vna modded.pdf (
By [email protected] Notification <nanovna-users+notification@...> · #8279 ·
Re: errors of "error" models
#86': UPGRADE : On the Results of Measuring Two-Ports Using Only [NanoVNA] Channel [CH0] or a [LeastVNA]. - #86: On the Results of Measuring Two-Ports Using Only [NanoVNA] Channel [CH0]: 16 December
By gin&pez@arg · #8278 ·
Simple example of interfacing Octave with nanoVNA #octave
Using the matlab script from QRP I created a rough Octave script. https://github.com/erikkaashoek/NanoVNA-MATLAB The script can send commands to the nanoVNA and read S11 and S21 Nothing special but it
By Erik Kaashoek · #8277 ·
Re: rf toolbox for Octave?
Not really; Octave Forge has some signal processing https://octave.sourceforge.io/packages.php creatingrf [@] gmail.com has some RF support for Octave: https://rf.helpingcreate.com/cgi-bin/octave.pl
By Oristo · #8276 ·
Re: errors of "error" models
#86: On the Results of Measuring Two-Ports Using Only [NanoVNA] Channel [CH0] Hello, Allow us, please, to announce that, in the process of preparing the presentation of our results on Measuring
By gin&pez@arg · #8275 ·
rf toolbox for Octave?
I have the Octave interface to nanoVNA working and wanted to work with the data All Matlab code I can find uses rf toolbox Is rf toolbox (or something equivalent) available for Octave? -- NanoVNA
By Erik Kaashoek · #8274 ·
Re: Increasing measurement range (ohms) ?
Hi Alan, I did some modelling and there are quite a few places where errors can creep in. I was a little surprised on the significance of Tx driver source impedance and balanced Rx output loading
By roncraig1@... · #8273 ·
Re: Homebrew Female SMA standards and T-Check
Hi Allison Sure they will work fien with thee NanoVNA as the difference in offset delay is very small as the NanoVNA is designed for ideal calibration kit except the open is compensated by 50fF. But
By Kurt Poulsen · #8272 ·
Re: Are any of the NanoVNA sold on Amazon any better or worse than any others? Is there a better U.S. site to order from?
Hugen, What will be the price of the new version? And when it comes out, will the older version still be available? BruceN, K4TQL -- *"To invent, you need a good imagination and a pile of junk"* --
By BruceN · #8271 ·
Re: Homebrew Female SMA standards and T-Check
Hi Rudi, The MATLAB T-check script is part of a package of scripts written by Dick Benson, W1QG, and downloadable from the Matlab Central:
By Jeff Anderson · #8270 ·
Re: Homebrew Female SMA standards and T-Check
Allison, Dave, and Kurt, many thanks for your replies. Dave -- thank you very much for the "flush thru" description. That explains a lot, and it was a key bit of info that I lacked. Kurt -- I'll
By Jeff Anderson · #8269 ·
Re: My nanoVNA does't go into DFU mode #improvement
I would like to thank all the replies to my initial message. Unfortunatelly, the firmware was an old one that didn't allow me to go into a config menu. I also made sure to jumper the boot0 and Vcc. In
By Luciano Gasparini PT9KK · #8268 ·
Re: My nanoVNA does't go into DFU mode #improvement
Windows 10 has the drivers on board, not necessary to run Zadig. The device should show up under "Ports (Com? & LPT)" as "Serial USB Device (COM3)" eg ,? NOT under "Serial Bus-Controllers". if so
By Jos Stevens · #8267 ·
Re: F303 and 4" LCD for next generation NanoVNA #circuit #flash_size #improvement #enclosure #battery
Hi Oscar, Use it and don't worry about being a clone or not a clone. If Hugen hadn't cloned from edy555, you wouldn't have to worry now. By the way, everyone works from a set, if there is a
By Gyula Molnar · #8266 ·
Re: My nanoVNA does't go into DFU mode #improvement
Hi Luciano, You are writing that there was no D2 diode, which is likely to give you an earlier firmware version of nanoVNA. Therefore, ignore the "Menu -> Config -> DFU" message as you do not have it
By Gyula Molnar · #8265 ·
Re: Homebrew Female SMA standards and T-Check
Hello Jeff, You have made an interesting T-Check measurement in post 8236, date 2015-12-15 16:19. Is your MATLAB script "Cal_T_Check.m" also usable with Octave under Linux? 73, Rudi DL5FA
By Rudi · #8264 ·
Re: F303 and 4" LCD for next generation NanoVNA #circuit #flash_size #improvement #enclosure #battery
Hi Hugen, I recently purchased my from ALI Express. I am totally new to the VNA. How can one identify if it is a clone or not. Regards Oscar
By Oscar A <oscar_abr@...> · #8263 ·
Re: My nanoVNA does't go into DFU mode #improvement
You can contact Maggie to modify, Maggie will choose the appropriate courier, most European countries do not need to add additional postage. hugen
By Hugen · #8262 ·
Re: My nanoVNA doesn't go into DFU mode #improvement
Greetings, I am unable to complete the checkout process with two different credit cards. Do you take Paypal? Dave W6TE
By Dave W6TE <w6te@...> · #8261 ·