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Yes, indeed!! Only us nerdy RF and physics types fully appreciate the tongue-in-cheek humor in those paragraphs. I used to have both his publications (Howard Johnson) and both were autographed. I lost

Here!! Here!!. We should have been more persistent in the 1960 when the USA tried to move to the metric system. *Clyde K. Spencer* wrote:

Personally, I'm more at home in metric than our "kings foot" set of units! However, if I had used metric, all the hams over here in the good 'ol USofA would bellyache they couldn't deal with 2.54

Roger: Thank you for the SimSmith circuit and explanation. You have solved one of the mysteries in all this for me. My measured DM CMC loss did not correlate with the amount of heating (actually very

The NanoVNA-F also has the capability of saving the S1p and S2p without the need of the SD card modification. wrote:

You need to get one with a SD slot (or hack one) and install dislords firmware to enable that feature.

A minor correction: the authors are Dr. Howard Johnson and Martin Graham. They authored two books (including the one cited below) and they are both excellent. DaveD

Does the nano-vna have the ability to save s-parameter files in Touchstone format?

Barry, I thought you might enjoy this description of the resonant swing set by Graham Johnson in his book . - High Speed Signal Propagation - Advanced Black Magic (1993). Roger

Something to consider when determining loss in a common mode choke by this method. https://owenduffy.net/blog/?p=20138#more-20138 Roger

Very interesting. I was quite shocked that you didn’t use metric units for the calculations though. This would be my suggestion: use metric units. JD

An addition at the beginning and a few minor 'fixes'. Going to sleep last night I kept mulling over changes I wanted to make. See attachment. Dave - W?LEV

I am happy with my VNA -F.Good luckSent from my Verizon, Samsung Galaxy smartphone

Barry, great slide presentation.? However, you ask questions in a number of the slides and have a few quizzes but don't provide an appendix or any presentation notes with the answers.? Can you

Hello NANO VNA folks I keep updating my NANO VNA talk after presenting at different club meetings. I've had my Nano VNA for about four months now, and each time I play with it I learn something new.

Nice write-up of your method. Only a comment on the measurement outcome itself. In the Smith Chart it becomes clear that the transmissionline impedance (the sort of twinlead windings on the core) is

Yes, in an ideal world, all tests would be done with no changes in the setup. Unfortunately, we - at least most of us - don't live in an ideal world, we live in the real world. A number of NanoVNA

Thank you for sharing. Looking forward to seeing your process for measuring common mode attenuation through a CMC :-) -- VE6WGM

Don't yield to unreasonable people, that's what they want.

OK. you clearly do not understand. I quit....... Dave - W?LEV [email protected]> wrote: