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Your density is finer than it needs to be. Which is ok. However, might consider the one standard that is: 0 , 10, 25, 50, 100, 250, and infinity... Same on both reactive contours.

Hi Brian, As an RF engineer, I depend on Smith charts for the intuitive understanding they enable. It is easy to look at at an impedance and instantly understand what would best match an impedance.

The marker will go to the nearest scan point. You have your H4 set for 101pts, you can set it to 401 for much finer resolution.

Question, why when I set a center frequency of 910.525 MHz on my Nano VNA-H4 (as I did here within this image) then I set a marker for 910.525MHz, they are offset from each other?

Well, it was easier to implement than I thought. And a lot more fun! I need to fine-tune the circles and then think about some sort of frequency annotation or readout. Brian

Very interesting, Maynard. I had pretty much decided to skip implementing a Smith chart until I read your response. I'm all for facilitating insight. I never worked in RF professionally. The Smith

Bob, I have gone through that some time ago. It is quite useful, though not exhaustive. 73 Jon, VU2JO <becclest@...> wrote:

Jon, Log into the groups.io nanovna group and go to the Files section. Look for the "Absolute Beginners Guide". I think V6.20 is the last update. It does not cover all the bells and whistles of the

Jim, You are exactly right about the graphical design of a matching network. Some years ago I worked up a network which involved solving a quadratic equation, easily done. So I had an analytic

Thank you Don [email protected]> wrote:

Thank you Dave. [email protected]> wrote:

Convenience for graphical design of a matching network. There’s also sort of a qualitative thing that you recognize particular “shapes” on the chart as having particular significance. And, if

If you can plot the real and imaginary parts of an S-parameter as well as magnitude, phase, and SWR, what additional information does a Smith chart provide? Is the advantage that you get SWR and

Jon,Look in the group files section. Lots of user information there.? Yahoo Mail: Search, Organize, Conquer On Sat, Apr 26, 2025 at 6:37 PM, W0LEV via groups.io<davearea51a@...>

No, it does not. However, there are several publications out that instruct one on using the NANOVNAs. Once you learn the basics, that should map over to any VNA, professional or NANO. Dave - W?LEV

After working with Smith charts for awhile, and understanding them - they provide in one 'glance' a visualization of the complex impedance across frequency, at the same time as a visualization of the

Yes, and if you let the PC do all the optimization work, what have you learned? Not much other than how to use the PC for the applications. Rectangular plots vs. frequency, Bode plots, give you

I never intended to add a Smith chart to my S-parameter plotter. I can appreciate how useful they must have been before computers, but I don't see their value today. A computer program, especially one

Dave, Does the NanoVNA come with an instruction manual? I received only a menu chart, and no other booklet. 73 Jon, VU2JO [email protected]> wrote:

Yes, if your SAVER is miles outside of your intended cal range, you need to do a cal on the native device first. I've never had that problem, so I wouldn't know. I've used professional VNAs for