¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Date
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 ·
Re: My nanoVNA does't go into DFU mode #improvement
Dear Hugen, that's good news. I would recommend the store to my friends. We appreciate your work. I see that shipping is 15$ for my country (Romania), also for some EU countries, but for other EU
By Ady, YO2NAA · #8260 ·
Re: F303 and 4" LCD for next generation NanoVNA #circuit #flash_size #improvement #enclosure #battery
I have made these changes, but I always get an error interrupt. It may be caused by some register values not being reset properly. hugen
By Hugen · #8259 ·
Re: F303 and 4" LCD for next generation NanoVNA #circuit #flash_size #improvement #enclosure #battery
The firmware for NanoVNA-H needs to be recompiled before it can be used. You need to modify the MCU and LCD drivers and some UI changes. You can view the code of AA6KL. AA6KL has completed most of the
By Hugen · #8258 ·
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?
There are more than 5 clones of NanoVNA-H at present, some are with shielding cases. But due to their wrong assembling, the performance decreases. Assembling the shielding case is to isolate
By Hugen · #8257 ·
Re: errors of "error" models
ann : we just finished the experimental comparison - the results verified our predictions for two constructed two-ports - #83 : On the Doubtfulness - 13 December 2019 -
By gin&pez@arg · #8255 ·
Re: Homebrew Female SMA standards and T-Check
One last, many of the HP loads are air, the most often home made open and short are PTFE loaded, there is a VF difference. The HP load is definately air (minimal dielectric) to the resistance. The
By aparent1/kb1gmx <kb1gmx@...> · #8254 ·