Re: Can the nanoVNA act as a vector voltmeter?
Thank you.
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@rr2
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#5206
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Re: Measuring ferrite beads
#test-jig
Hi Starsekr and others Pay special attention to Part III. Part I and Part II are describing out learning process. The toroide measurements are "handicap'ed" by the wire loop inductance which you only
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Kurt Poulsen
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#5205
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N male calibration kit
Hi All Some years ago I bought a N male clone calibration kit which is a HP85032E clone kit. It is not that bad(pretty good) and data are very close to what can be found on the Agilent homepage. To
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Kurt Poulsen
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#5204
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Re: Abbreviated documentation for more simplistic tasks?
I agree....... my NANOvna and my Antuino sit there unused because my old brain and the fact that my medical education didn¡¯t cover electrical or RF engineering I am hopelessly lost in using these
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David Wilcox K8WPE
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#5203
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Re: Can the nanoVNA act as a vector voltmeter?
No nanoVNA can only work with internal reference, not external
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Erik Kaashoek
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#5202
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Re: NooElec 1:9 balun
#test-jig
Or get $1 4:1 baluns https://www.ebay.com/itm/323251474048 .. and solder into hacked attenuator 2x4 https://www.ebay.com/itm//123879478099
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Oristo
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#5201
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Re: NooElec 1:9 balun
#test-jig
there is misspelling, you can find it on ebay for 3 USD. You can use 450 ohm SMD resistor for testing. SMD resistors works good on HF
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QRP RX
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#5200
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Re: NooElec 1:9 balun
#test-jig
the link you provided is very expensive. This balun can be found fo 3 USD on aliexpress and for 6 USD of aliexpress. Some time ago their price on aliexpress was about 4 USD. In order to test it with
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QRP RX
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#5199
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Measuring ferrite beads
#test-jig
W. Reeve, T. Hagen, K. Poulsen published some data from and described their techniques of measuring ferrite beads in "Radio Astronomy Magazine" in 2013. They did a lot of work developing test fixtures
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Starsekr
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#5198
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Re: errors of "error" models
I guess I'm having too much fun and running out of steam. :-) I didn't miss the X-axis labels after all. They are just positioned where Y=0 and I didn't spot them.. -- 73 Gary, N3GO
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Gary O'Neil
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#5197
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Re: errors of "error" models
Good morning GIN & PEZ; I completed my spreadsheet sufficient to make the data comparisons of the DERDEI calculations versus my NanoVNA (attached), The results overlay precisely; and therefore track
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Gary O'Neil
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#5196
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Re: NanoVNA V2 - I vote for a larger instrument...
Thank you for the link.The NanoVNA-F seems like another great device, but the larger screen is just a small wish, I'll keep the 2.8" for now. I more or less tried to make a point that it is not
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necessaryevil86@...
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#5195
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Re: Yet another NanoVNA PC app
/g/nanovna-users/files/NanoVNA%20PC%20Software/TAPR%20VNA/VNAR4.3.zip Hi Erik I have latest dotnet and vc++ on W10 32. 2 nano's Huygen 0.2.3 and DMR 2.5.5. Both same issue; Start
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Colindj
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#5194
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NooElec 1:9 balun
#test-jig
NooElec made a small 1:9 balun attachment for SDR radios, it might be a good framework for test jigs or hacked to change the transformer to 1:4 or even a 50-75 ohms style using a very small binocular
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Starsekr
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#5193
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Re: errors of "error" models
gin&pez@arg Let me start by first informing you that I have successfully ran your BBC Basic Program, seeded with the raw data from my NanoVNA; and your program yields results that are consistent with
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Gary O'Neil
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#5192
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Re: gnuplot for nanoVNA Touchstone files
Thanks, I'd forgotten that. When I last checked, it did not seem completed. My Python hack works well enough, to proceed with experiments now and later circle back to C#.
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Oristo
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#5191
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Re: Has anybody answered?
#forum_behaviour
I mostly use the email feed to keep track of all the posts. -- Paul Brodie techo@...
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Paul Brodie
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#5190
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Re: gnuplot for nanoVNA Touchstone files
Oristo wrote: ¡. was planning to use C# because experience and less baggage on Windows, __________________________________________ If C# is more up your alley then the reversed engineered CSharp
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hwalker
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#5189
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Re: gnuplot for nanoVNA Touchstone files
First, I did not know enough Python to easily sort that, was planning to use C# because experience and less baggage on Windows, but Rune provoked me to try Python, and his was easy to hack:
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Oristo
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#5188
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Re: Guidelines for SWR 1:1.5 and 1:2 in SWR graph
Not sure what is meant by guidelines, but on the device, after setting FORMAT SWR, then BACK to SCALE, set e.g. 0.5 SCALE/DIV and REFERENCE POSITION to 1
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Oristo
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#5187
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