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provided with the nanovna is not rpsma caps .. its an open .. a short and a load (not the best one but usable) dg9bfc sigi Am 04.08.2022 um 18:39 schrieb 0root via groups.io:

thank you [email protected]> wrote:

Scott, This may not help, but try leaving it charging overnight and see if that helps. It could be just the battery went bad. 73, Cliff, AE5ZA

My battery indicator icon shows a full charge but the unit turns off after about a minute. I charged it for about 5 minutes, unplugged the USB cable and it stayed on for about the same amount of time

Here are the ISBN numbers for his book: ISBN: 1-884932-39-8? ISBN 13: 978-1-8849-3239-7 You may be able to find an electronic copy by searching the ISBN numbers. ?I hope that helps. Sincerely,

Hi, I know the config DFU setting, but with my HW modification it is even faster to enter DFU mode - switch off, press the jog, switch on, release the jog - this helps me when I test my own FW

Free PDF download here: https://pdfcoffee.com/download/78897620-electronic-applications-of-the-smith-chart-smith-p-1969-3-pdf-free.html Just downloaded it. Larry AC9OX

I'm not sure it would really be worth it - there are lots of later books which might have a better tutorial. So you'd be possessing it for its historical significance - for which the $400 might be

Thank's, Jim (Lux)! I'm an old fart (75) and still much prefer a printed copy. With ARRL so non-technical these days, I seriously doubt we could convince them to, once again, carry the reprints? At

"Electronic applications of the Smith Chart in waveguide, circuit and component analysis" Phillip H Smith It's not on archive.org

Smith Chart lovers: A few months ago I downloaded a free copy of Mr. Smith’s book. I have mislaid the URL. Keep looking. I am sure you will find it. Chuck KF8TI

Again, that's why SimSmith is an indispensable tool when dealing with complex impedances and over different frequencies. It is a universal presentation tool in the professional RF and microwave world.

And I say that if we represented the Smith as attached, it would be much clearer. This is also how we project impedances on the Smith. It has, in addition, the great interest of materializing the S11

hi HO-Ro - thanks for the reply. Currently with the firmware of dslord 20211230 it works for me (I also noticed that it has many new parameters,) I was wondering if this firmware was the ideal one,

No problem.. The whole "uncertainty analysis" for a VNA can be remarkably complex - people spend their entire life researching it, getting a PhD along the way. If you think about something simple,

Roger, you make an excellent point. I would however like to point out that I believe your 100 +j0 and 25 +j0 are swapped. 25 should be on the left side and 100 should be on the right side of the

Thank you very much for this explanation. To say that I understand everything would be inaccurate but I now understand the principle. I will integrate your text (in French :)) in my summary document

sure.. The way the NanoVNA receivers work is by taking the input signal and mixing it with a LO that is 5 kHz away and doing an analog low pass filter. That audio 5 kHz signal is fed into a standard

As long as you tell the calibration algorithms the impedance of the 3 test loads, then it doesn't matter a whole lot. There are better and worse values, of course, but ultimately, it's a "solve three

Hi Roger, This is an (educational) presentation, not a paper. My talks are always for radioamateurs and this formula is best known. This triggers the audience to listen before it gets more