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Will the reactance of NanoVNA's channels influence the resonant frequencies of the choke, or the calibration process is removing this influence? If the influence is present, what method will minimize

#90.01 : Final Conclusion - #90.00 : A Practical Introduction to our -Second- Arithmetical Method of Error Estimations in VNA Measurements : [SAMEEVNAM] 22 December 2019 -

All, Just know that *soon* all ARRL members will have electronic access to QEX and NCJ issues via the ARRL.org website, although print issues will still require a subscription. And, be aware that

I bought the Amazon Fire Tablet August 23, 2019 --- Exactly 4 months ago...

Hi Gary, Actually, it is the objective of calibration to normalize the measured standards to their imperfect definitions, not to the ideal boundaries. For example, let's say the actual short standard

#91: Elevating a [NanoVNA] System to an Instrument of Laboratory Level Hello, Allow us, please, to declare that our research efforts here have to do with our curiosity regarding the investigation of

Thank you for that link Herb, I am an (foreign) ARRL member and also read QEX (wonderful magazine). I lost a QEX-article that I particularly find interesting and now found it back again in the

Did you download from the github repo at:.?? https://github.com/reald/NanoVNA/releases/tag/191210-0.5.4 Its a zip'ed file. Everything you need is inside the file and you need to extract what you

To find a series resonance you are looking for the frequency where the impedance is a minimum. All three techniques you suggest will work. 1. Series between two ports, look for the frequency of

ive downloaded the reald firmware but there is no hex or dfu file??

Hi, Rune! I have read your conversation with Bryan WA5VAH about TDR. As I understood, there is a problem with putting the device in TDR Transform mode and back in NanoVNA Saver. Yesterday I have made

This is where radio clubs are handy. I am really surprised at the hidden technical level of some of my club members. They don’t wear a badge or sign showing their skill level. They might even

It is a pity there are one or two members of the "something for nothing" set on this forum. If Dr.Steber wishes to publish his findings in QEX, where he is financially rewarded, then that is his

How does one measure the series resonant frequency of a RF plate choke using a nannovna. 1. Do you put the choke in series between the 2 ports 2. Do you place the choke in parralel to the 2 ports 3.

Gary, I'm do not understand this. The new formula has been proven to be identical to the well known calibration formula so it seems to be a single formula to describe G=f(g,s,l,o,S,L,O) instead of the

I had the same problem. Then the replacement screen arrived smashed to pieces. These idiots have no idea how to pack things for safe transport so hammer it into them when you buy one that it must be

#90: On the -Second- Arithmetical Method of Error Estimations in VNA Measurements - REFERENCE: ann : next-to-come : a practical introduction to errors of "errors" 20 December 2019 -

Hi again Jeff; Don't you just love it when your comments get posted before you are finished drafting it? :-) I had only one final comment in my response to you on this... The important significance of

Hi Jeff; I agree that the proof is certainly terse as you say. Likely an additional and serendipitous artifact of the elegance of the approach. :-) The use of ideal -1, 0, and +1 standards in the

I don't think that has touch capability.Bob