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rho = 10^(mag S11/10) gamma = rho * cos(phase) + j * rho * sin(phase) Z = Z0 * (1+gamma)/(1-gamma) if you are doing it in Excel rho = 10^(S11/10)

The version of the nanoVNA that I have allows me to display the smith chart values in various different formats, including R + jX. I made a video on this last night and uploaded to YouTube.

NanoVNA can show R + jX on Smith chart (use MARKER->SMITH VALUE option for select Smith display data format) Or use Display->Format->Resistance Display->Format->Reactance

You can convert the magnitude and phase of S11 under one port measurements to R + jX which might be more useful for you. I forgot the formulas now.

I would assume you'd do a cal in NanoVNA-Saver - the idea behind the "rough wideband cal" is to make sure you're not sending data to NanoVNA-Saver that it doe

Jim , If he is calibrated on 50 KHz. to 900 MHz. and then sets the NanoVNA Saver to 1 1MHz-61MHz. there will be a lot of interpolation going on. Why not recall 2 and avoid this? Mike - N2MS - Try both

Nope.. You can probably just turn it on (which recalls 0) and go from that.

6 to 8 MHz and the center is 7.1 MHz.

Roger, My NanoVNA-H4 presently has the following calibrated and saved configurations. Recall 0 50kHz-900MHz Recall 1 1MHz-31MHz Recall 2 1MHz-61MHz Recall 3 100MHz-200MHz If I want to use NanoVNA

Jim, You don't have to calibrate In NanoVNA saver if the NanoVNA is calibrated and you are using the same frequency range in Saver. Roger

It is my understanding that you need to do both. The best suggestion I have seen is to do a broadband calibration and store it in memory 0. You definitely have to calibrate in NanoVNA Saver.

…The S11 phase as displayed on the nanoVNA screen and the voltage vs current phase in the DUT… are they related? Yes. Are they the same thing? No. It seems many make the mistake of thinking that

Thanks for the link, and the hard work you've done on the firmware. 73!

And here is another link for a very good TDR app note from Agilent: https://www.testunlimited.com/pdf/an/5989-5723en.pdf

I came across an Introduction to Network Analysis presentation by Keysight that I thought those new to the VNA might be interested in reading. It covers Transmission lines, S parameters, Smith Chart,

Yes, every cable damage/connectors provide signal reflection and you can see it on TDR Better search info about Time Domain Reflectometry (TDR) for example:

When using NANO Saver, the cal files can be stored on the PC/laptop, not in the NANO. You can store them permanently on the PC and access them for future use by just reloading them, provided

I know this is a wee bit off topic DiSlord, but could you tell me something? Is it normal to see a bit of a bump where you have a SO239/PL259? What does a normal trace look like for a typical RG8X

On nanovna-saver/README.md at master · NanoVNA-Saver/nanovna-saver · GitHub <https://github.com/NanoVNA-Saver/nanovna-saver/blob/master/README.md> I have read that the calibration has to be done for

I'll give it a try Thank You