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Hi George, attached is the new test. For calibration I used the same standards on both analyzers. The load has a resistance of 50.03 ohms (four point measurement). At the input of the nanovna I used a

Hi Gene, I'm always open to suggestions for improvements, including code - either by email (mihtjel@gmailcom) or as "pull requests" to the GitHub repository. :-) Thanks! -- Rune / 5Q5R

Yes, Look in /g/nanovna-users/files/NanoVNA%20PC%20Software/TAPR%20VNA Don't complain about the manual, it is being adapted but not done yet

The screen protector in mine looked real ugly, so I got rid of it quick. It also gave me a chance to check out the shields and general workmanship. I didn't see any issues with scratching the

Hi Rune, If it's ok with you, I can push the changes to the repo and you can decide if you want to merge. I also have another machine running High Sierra that I can test to see if it has the same

Hi Dave, Yes I agree that the 20:1 VSWR impedance ratio for my 1K hi Z test is higher than for the 5 Ohm low R which is half that at 10:1 VSWR. I selected the values of my test loads based

Is Tapr-VNA software for NanoVNA available now?

I'm suggesting something very basic. Accumulate enough data to make a meaningful statement of the mean and variance of S11 and S21 using the parts supplied with the unit by doing uncalibrated SOLT

I've certainly not seen it before - I think it might well be a "Dark Mode" thing changing default font look. I haven't done anything in particular to force the backgrounds to be white, but it is the

Thanks Ron for the testing effort! The update has been pushed to GitHub, and will be included in the 0.0.9 executable in a few days. :-) -- Rune / 5Q5R

I just realized something else by making these changes, that improves things. My laptop has a native 3840x2160 screen, plus I have the 1680x1050 monitor. I dragged it from my "4K" display to the lower

I did a little testing with help provided by Rune and essentially made those changes. He first suggested the line "QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, True)" to be

Great job Rune and thank you for this excellent software! I am running on Mac OSX and the QLineEdit boxes are white on white text. I can highlight the contents and see the text. I set the text color

https://leomoon.com/journal/python/high-dpi-scaling-in-pyqt5/

But it was originally quoted “Load values below 50 Ohms were found to be roughly within 10% across the entire 900 MHz sweep.“ then extremely high values of resistors were tried. To me, the

Hi Norbert, That is a great idea. I'm looking forward to the results! You probably are aware of this, but I can't help mentioning that the H-probe must be in exactly the same position for both

We should go back to the original question. Resistor linearity of the nanovna. So everything should be kept equal and only the resistor value should change. That includes calibration with the same

[email protected]> wrote: A few things you might want to be aware of Reg. Perhaps I have misunderstood what *1) Mating similar connectors * There are several connector types which will mate,

Hi Erik, I find your design for an open reference interesting and I am thinking of making a set of similar references - it is a great idea for nulling out the shunt C effect! For the use of my set of

Hi George, that's a very good Idea! If I have some time tomorrow I will redo the test by using the same setup on both analyzers. One thing that we have to consider, the VNWA has much better