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Folks, Have just acquired a NanoVNA - installed on NanoVNA-saver on OSX no problem but I have an old but powerful laptop running Xubuntu 18.04LTS that I want to use as a dedicated workshop machine. I

Is it practical to capture uncorrected data for OSL and DUTs from each VNA, then perform calibration corrections using some PC software, to better isolate hardware from firmware effects?

Hi Ulrich That is probably easy to explain. When doing the Ch0 S11 measurement I anticipate you are using a female bulkhead/PCB SMA adaptor to which you solder the coil. Then there are two likely

Hi Wolfgang, the search for freqency with best SWR and printing it on the display or via I2C to an external LCD would be great to have. As I'm not a maker of software for the nanooVNA or the used

Hi Alan, yes I use a SPDT relais to switch either the TX to the loop, or the VNA to the loop an the TX is offline in this case. When the relais gets its 12V DC, this is the source supply for the VNA

Hi Erik Interesting test indeed. I understand that when you did not see any difference between the 3 VNA's and calibrating directly at the 3 VNA's it meant at a SMA female adaptor using the SMA male

No problem. Mel, <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com

Hello Kurt, and others, I still haven't build a robust fixture, but experimetally taking some measurements on EMC bead, or right now on a wire-wound inductor with a 3mm ferrite core for EMC

Hi Arno, I visited your page. Very nice construction on the mag loop. I see 20 to 30 dB return loss, between the VNA on the web page and the new unit in the photo. Quite well done. I have a few

Hi Arno, a good idea! In My EU1KY analyzer I have implemented a function to automatically search the frequency with the best SWR, or the minimal S11. For the makers of the nanoVNA software this is no

In all honesty I was not sure if the approach I was following to determine imperfections in a calibration kit made sense. Various wise people on this group have given me hints which, due to lack of

PuTTY works, but if your Ubuntu already has Python, then this script enables interacting directly from bash: https://oristopo.github.io/nVhelp/html/nVcmd.py .. after edits for your path and serial

Ok, now that I know you're running Linux, please read the wiki notes on device access if you're going to flash new FW. A number of forum members here are also running *nix boxes so if you run into

Thank you Larry and everybody else! There is no Config button. Tomorrow I'll get busy with Console Commands (Putty on my Ubuntu laptop should do the trick) and will go through more of the Wiki and

Mel, I used a commercially made HP 50 ohm termination as my standard until David Taylor pointed out that even though it was manufactured by HP its s-parameter specs were lukewarm at best. [] - Herb

Bridge is most sensitive and reflected signals are smallest (so noise is a larger portion) when terminated by 50 Ohm calibration load.

While limited to 2 traces, your firmware does support that second port, so is truly a VNA. To find items 'hidden' in touch screen menu, see: http://ormpoa.altervista.org/Hnano.htm Other introductory

Have built a magnetic antenna for the 80meter band as shown on my homepage https://dk3ss.darc.de. As the antenna has an excellen high Q (bandwidth aro 9kHz) it shows a sharp dip in S11 return loss. To

Hi Luigi,To determine the version, touch the display to bring up the menu.?Does the menu show Config as the least bottom button?If there is no Config button you most likely have version .0.2.x

What you have will do the job. However, new firmware offers new features and bugfixes. It is nothing you must have but it is good to have. Two track firmware does n