If you would take your existing board and use a sharp knife to remove the excess copper you might get a better result, or at least see what changes occur. Trimming the connector pins back will also he

#measurement

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

#measurement #nanovna-h4

Good work Roger! I spoke with Brian on the phone myself a while back and he was able to very clearly and succinctly convey his thoughts on this matter. I concur with your writings here fully :-) Thank

#measurement

Great, thanks!

#measurement

Check THRESHOLD value in config-expert settings, Must be 300MHz But better reset config anyway, also in expert settings

#measurement

Suggestion for a pass/fail test jig of the bandpass width and ripple of crystal filters and other components.

#xtals #test-jig #applications #nanovna #measurement

Folks, I know that EZNEC has been used by a number of NanoVNA forum members for antenna simulation - BUT as of January 2022, the PRO/2 version will be free as the author of the application is retiring

#simulation #applications #design #measurement

Not just amplifier compression but compression or even possible damage to the receiver port due to excessive power. 73, Don N2VGU.

#measurement

I had another quick look and I think my analyser is capturing a brief (120us wide, -10dBm level) spurious output event at 32MHz on this sweep. However, sometimes it captures the real 32MHz hop and it

#measurement

Wow I just found a Q curve function in the nano menus! The beauty of calibrating this way with the edelay command is that the Q curve it displays is valid because the nanovna is calibrated rather than

#measurement

That's a great idea to mark it... I have a few telescopic antenna's I use on scanners, and always just guesstimate.

#measurement

Was just over reading Roger’s excellent thread on using a VNA to examine discrete components. I figured I should be clear with everyone that the method I presented below is not and was never intended

#measurement #tutorials #video

A video I did up last summer on how to use the nanoVNA to measure the resonant frequency of crystals. The intended audience is those who are not wanting a complete and exhaustive characterization of c

#measurement #tutorials #video

Well, I'm an electrical engineer and I found it very useful. Zack W9SZ

#tutorials #video #measurement

https://youtu.be/_vvCBarRaPY Here’s what I did to measure the common mode attenuation of a current balun that I recently constructed. -- VE6WGM

#measurement #tutorials #video

You are right! I just assumed that you are genuinely interested in this subjects, but as many others using nanoVNA not formally educated in this "branch of science", so I tried to word it in a way tha

#measurement

I did some Velocity Factor (VF) measurements today on 9.4M of Belden RG-58A/U. The Belden specs give the VF as .66 or 66% of the speed of light in free space for this cable type. The first step was to

#measurement #general_vna

Hi Andrea, I have an hp workstation that runs a filter design routine, but ELSIE, is an excellent source for the same tool. Try it. Alan

#design #measurement #filtering #calibration #adapters

Hi Steve, try using DiSlord to make up for what the Japanese stop. He may be receptive to this. Write down what you want to see that is not already in the firmware.

#measurement #circuit #newbie

Larry, I've only just been able to read the translation. Thank you for your efforts in translating this document. Sincerely, Oberschrat

#nanovna-h #applications #measurement #simulation