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My first experiment was just using Ts.? This works, but doesn't present a 50ohm impedance to the device under test (DUT), rather it presents 25 ohms (because you've got two 50 ohm terminations in

Hello, how connect two nanoVNA linked for a full two-port setup, I lost some pictures .

Go to message #25030 from Brian Beezly and the link is there. And Thank You Brian for "coil"

Where COIL v. 4.2.2 is available for dowload ??? Thanks - Peter

I think the original question was how to run Brian Beezley's COIL program (which is Windows/DOS) that is *non-trivial* on a Mac - the *easiest* way is to fire up a virtual machine of some sort, but

Andrew, I’m sorry but I can’t remember. It must have been fairly easy or I wouldn’t have managed it. I do know that I access it from the terminal by typing; cd nanovna-saver (ENTER) NanoVNASaver

Yes, thanks, the image looks good. I too have googled Windows apps on a Mac, and they require strange things I have never heard of. I don’t know what Wine is, for example. Nor Python. I followed

Sorry, Andy. I know nothing about Macs. But googling yields many results for running Windows software on a Mac, including a version of Wine. Here is a screenshot of an actual Litz coil for a crystal

How did you get it loaded and working?

Andrew, NanoVNA-saver works fine on my Mac. 73 John M0JBA

Correct. Dave - W?LEV [email protected]> wrote:

Sounds intriguing! I routinely find self-resonance and calculate parasitic C from that. I see that I could take that R and calculate Q, but the Q would be for a frequency far from a practical one, and

You're fine with alligator clips at HF frequencies - especially the BC band for the crystal radio. Don't sweat it !! If your crystal radio operated much above 100 MHz, yes, the alligator or crocodile

That program sounds wonderful! The only problem is that my computer is a Mac, and I bet it won’t handle it. I know someone might say “O just get Python and change XYZ while uploading ABC from

There are several programs - please browse the forum Wiki for information.

Yes, that article and Alan’s explanation were very helpful. I realize that I had a misunderstanding of where a “parallel” resistor would be, and how a resonant circuit can be tested via shunt

exactly. Let's say the gamma measurement is +/- 5%.? If you convert gamma = 1.05 (angle = 0) you get -2050 ohms and Mag S11 = 0.4238 dB If you convert gamma=0.95, you get 1950 ohms and mag S11 =

Yes, R cannot be < 0, but my interpretation is simply that the -2 is error in some small number like, say 1 or 2 ohms. I will admit that many of you experts talk about how you attach your DUT very

Hello, there is one suitable PC software to control the full function of NanoVNA for windows? 73/Francesco

Bill, I'm not sure this does what you want, but try it: Set frequency, coil diameter, and wire gauge. Click on Turns for turns/inch and set the value you have in mind. Then vary coil length with the