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My question of F4HTQ having remained unanswered, I appeal to you again. Question 1 ---------- I do not understand one of the graphs of Nanovna-Saver: S11 R/ω & X/ω I don't understand what it wants

57 filters between 3kHz and 600kHz -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK

That was my first thought when i have seen your first post.... Antenna is rp-sma .... You also should by some extenders (male female sma).... Sma socket may wear out after extensive usage... And its

Thanks, but you were too quick to dismiss the human factor.. It wasn't until this morning that I realised the antenna is rp-sma female and the nanovna is sma female.. They will screw in perfectly, yet

Willing to bet you have a strong, or many, interfering signals in the passband. Point your test antenna straight upward and see if anything changes. However, if you have additional strong signals in

Hi, Just bought a Nanovna-h (0.4.5-4-g96e7efe firmware) and calibrated it, tuned the display to only show the SWR, however while I am getting a perfect SWR of 1 with the dummy load, I get a SWR in the

One seldom achieves the "advertised" or modeled pattern, especially at HF frequencies. VHF, UHF, and ?waves are whole different stories. HF patterns rarely conform to expected results except for

Did a coupling test between two antennas and it was interesting to see how the impedance looking into one antenna was impacted when leaving one of the antennas open, shorted and terminated in 50 ohms.

Thank you very much for the precise answer. For the TinySA, I read: Manually selectable resolution filters of 3, 10, 30, 100, 300, 600 kHz. Automatic selection of one of 57 resolution filters. What do

Good Morning, Yes, the tinySA has computer control application: https://tinysa.org/wiki/pmwiki.php?n=Main.PCSW Larry AC9OX

If you have a Pluto (possibly RTL-SDR): https://www.albfer.com/en/2021/01/31/satsagen-0-5/ For the RTL and others: https://github.com/pavels/spektrum 73, David GM8ARV -- SatSignal Software - Quality

A similar device is the rf explorer.. And THAT can be driven from pc Or just use an rtl dongle From nuts about nets there is a free soft that was mainly made for the explorer but can also drive an rtl

Read this one. I've gone the path :-) https://pa3a.nl/wp-content/uploads/2022/02/Measurements-With-The-NanoVNA-Part-4-Measuring-the-characteristics-of-unknown-toroids-and-identifying-them.pdf 73 Arie

Hello Evan Main wrote: A better tool is the TinySA. Is there software like nanovna-saver that can drive this TinySA from a PC?

Hello Regarding my initial question "S11 R/ω & X/ω (?Ω / Hz)" I contacted F4HTQ directly, who answered me, but I don't have the technical answer yet. I restored the various formulas allowing to

Please see the attachments as well. If one wants to test a single ferrite toroid with no windings, I have a 1/4-inch rod that fits between the alligator clips with the toroid in place. [image:

Anyone have a photo of their Ferrite text fixture? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical

There is a tutorial which I have referred to in the past for such a purpose on the Fair-Rite www site. https://www.fair-rite.com/ Look under "Technical Resources" at the bottom of this folder. You

We can analyze the characteristics of the ferrites in the drawers with a nanoVNA device and a nanoVNA-Saver program. These "curves" should then be compared with the curves given by the manufacturers.

Good afternoon. I am not sure but I don't think I have seen this mentioned as yet another tool for the NanoVNA. Can the Nano be used to help identify anything about any of the cores that are sold by