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I have been saving s1p and s2p files from Saver and then re-save them as .txt files. In Excel I import external data in the .txt format and delimit using spaces. This works well for using S21 Thru and

Sorry but that's not the case man. Don't get me wrong it's useful. But my ability to understand it' is not the issue. My issues with it are the lack of morals by the people that sold it. I have a

Sorry you had that experience. Likely, you did not take the time to learn how to use the NANOVNA!! It is a *FAR* more capable instrument than anything MFJ offers at 4X the price, but it is not just an

I own a Mano vna and I threw it in the toolbox and just paid the 360 bucks for the mfj with the wall wart without hesitation. Nano vna is junk. I have had nothing but problems. I've boughten two now

Don't forget, the NANOVNA also connects to a PC as does the Rig Expert units. I usually use mine connected to the PC. Dave - W?LEV [email protected]> wrote:

I have a MFJ-259B, A Rig-Expert AA-55 Zoom and a nanoVNA-H. Each one is useful depending on the task at hand. I use the MFJ-259B when adjusting my manual tuner because the needles quickly respond to

Not just MFJ. RigExpert too!

Ted I struggled with trying to get dfu-util to see my device even though it installed the device drivers. I couldn’t get it to work on a mac but was able to on windows 7 (should also work on 10)

Strictly speaking, there should be bounds on the R,C,L terms so they are less than one. Otherwise a second order system, a tuned network which must posses two memory components vanishes. Consider if R

What will happen with resonant frequency when R>C/L and value under SQRT becomes negative? Will that create a black hole and the world as we know it will collapse in it? :) SPICE simulation shows

Alan said: With very large resistance you effectively have current generator so you can plot voltage on the RLC circuit :) In my simulation, I used ideal voltage source and plotted the current -

And of interest, peak magnitude and zero phase do not always align except for the infinite Q case... It is best to observe the definition as the imaginary part of the function goes to zero implies the

I've purchased some well made cables with SMA males on each end from Amazon to replace the jumper cables that come with a typical basic NanoVNA - as others have mentioned on here, the quality control

So on the plot shown you can see the migration in resonant frequency from 15.9 MHz readily down to 12 MHz and still marching downward. I said infinite Q.... nah! Actually quite finite, maybe 50 or

Here you go Miro. I set the generator to a large value, 1 Meg. It is best to look at PHASE and the crossover at zero degree. You will see zero degree phase point in the plot as a RED crossover X. It

Excellent experiment Miro. Take care on setting the source impedance for the AC generator. If not sufficiently large the loaded Q will be quite low and the net affect of seeing the de Q of the

For some reason, can't attach screenshots, trying again

I guess that I'm doing something wrong here, but LTSpice does not confirm the math :) Just to make it very simple, I did C=10nF, L=10nH (so C/L=1), then varied RL as 1u 10m 100m 500m ohm. As expected,

Thank you! Alan

Please read the user guide I edit, it's in the files section.? It tells you how to convert a bin file to dfu.? The easiest way though is to install one of DiSlord's dfu files. His firmware is in the