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If you are measuring baluns and large components like this below 30 MHz you surely can get away with a lot. I guess when you run into situations at higher frequencies you can over do it a bit for

But the expression for voltage or current yields a bigger number. Everyone knowns a bigger number is "better"...... Dave - W?LEV -- Dave - W?LEV

Hello all of you, Almost a year ago I asked if someone has done (or is able to do) measurements of the same DUT with a 3-term (like NanoVNA) and a 12-term calibration device (

Again, remember, we are not dealing with metrology quality instruments. They are certainly good enough for what we need. Well, maybe for tuning repeater cans, we'd like 100 dB of on-screen dynamic

In the last email on the subject, please forgive me for being a bit cryptic. I'm just so frustrated with what the "memorize and forget" philosophy has gotten us in amateur radio in general. Yes, I

Where is the text that went with the attachments?????? Try again: QUOTE: " But I note that many “internet experts” I have read begin their reports or designs or whatever by stating or thinking

I hope they (Starlink) doesn't truncate this email, again...... Here it is again......... QUOTE: " But I note that many “internet experts” I have read begin their reports or designs or whatever by

Why was my email and the attachments theretoo truncated???????? The whole email is not present!!!!!! Dave - W?LEV [email protected]> wrote:

QUOTE: " But I note that many “internet experts” I have read begin their reports or designs or whatever by stating or thinking they “have enough” or “should be enough” common mode

Dave - One last question on your baluns and such from my inquiry, item 5: “5. Your observed results of Z CMC offered by each CMC choke ? In form Z=R +jX and related Reflection Coefficient Gamma

Bryan, I don't use coax but loose wires connected to a connector. I use this to characterize ferrites up to 60 MHz. Mike N2MS

Great info all. I was aware that using coax with clip leads would add to some errors. I was working HF band below 30mhz so thought I might get away with it. Perhaps not. Lots to learn about making

Thank you for your suggestion. I ran the Youtube, and I agree he is a great instructor. I had planned another presentation on the Smith Chart, so this would fit nicely thereafter. I will contact Barry

I made a jig so I can test Tesla coil components with. The first couple permutations of the design used alligator clips. I hade to fashion cal standards for SolT ISO, but in the end I believe

On 11/03/2023 19:26, Larry wrote: [] > If instead you have a canned presentation that would be welcomed as well. [] > Thank you for your time and consideration in this request. > Larry Land, ki5oez >

For testing non-insertable devices (devices that don't have the appropriate connectors to maintain a Zo of 50 ohms) I have used microstrip transmission lines for calibration and testing. The Zo of the

The bottom line for most VNA calibrations is that improvements in "raw" performance, that is, the smaller the errors you are calibrating out, the better and more stable the measurements using those

Thanks Dave for your comprehensive response. Hope the incoming storms keep that wire on the sky. Ed McCann AG6CX

You can also use the MS "Snipping Tool" if your laptop keyboard does not support "Print Screen". Dave - W?LEV [email protected]> wrote: -- Dave - W?LEV

QUOTE: " Could you provide a bit more detail on your description:" QUOTE: 1. The actual antenna in the air. Following is a rough sketch of the antenna. The feed point is about 30-feet above soil