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Hi Jerry, You're absolutely right. It's not all or nothing. A semantically better way to say it is: RF current always favors the path of least impedance. The degree of "favor" is divided between paths

The measure of a "good" antenna is how well it performs. When I lived in a house with a lot bigger yard a few years ago I had a 40 meter vertical full-wave loop antenna (~12 feet high and ~58 feet

You're correct. I was thinking about it and tried it: the NanoVNA does go to 900 MHZ. And all this time I thought that since the default stop freq that it 'boots up with' is 250 Mhz that it was not

Hello Ed, I have not much now to look into this, but this article: https://hal.archives-ouvertes.fr/hal-01886795/document Gives your method (Fig 3b and Fig 7a. So one can measure some aspects of the

it should go to 900 (3rd harmonic) or 1.5 g (fith overtone) dg9bfc sigi (sorry i can not help with fw cause i am a v2 user that has a clock to over 4g) Am 11.07.2022 um 18:44 schrieb m2walter@...:

Yes, indeed...... The measure of a "good" antenna is not SWR. Of course, a 1:1 in a 50-ohm non-reactive system is essential to keep the transmitter output stage happy, but does not measure how good an

I have an original NanoVNA: it only goes up to 250 MHz. Can I upgrade the firmware and obtain additional functionality? If the firmware can be upgraded which version should I load. Tks. Mark Walter

Thanks.

I build a deb package with the command "DEB_BUILD_OPTIONS=nocheck python setup.py --command-packages=stdeb.command bdist_deb". You need the debian package "python3-stdeb" (Python to Debian source

Yes, you are right, but how do you check radiated electromagnetic field ! Tell us how you do 73 -- F1AMM Fran?ois

be careful not to have a dummy load @swr1.1! what is important is the radiated power! so not only check SWR but also radiated electromagnetic field! 73 F6CNG Olivier [email protected]> a écrit :

Hi Victor, Thanks for your feedback, you ask a good question concerning its validity. I’m not aware of any specific articles on the technique I mentioned, I derived that configuration from a simple

Jerry, Precisely correct, Interestingly, when I first heard that: "always takes the path of least resistance"?statement it was within the context of the propensity of a lightning strike. The tallest,

Actually, that's a common, but incorrect statement. Current - RF or otherwise - always flows along ALL available paths, split according to the inverse of the resistance. To make it simple, let's say

Tnx Dave! Nice and short write-up of what's happening. 73 Arie PA3A Op 8-7-2022 om 19:57 schreef DP:

I put here my log of the installation on Windows but this log is in French. I can send it to you in Word if you want to translate it. http://hobbys.free.fr/ftp/nanovna-saver_installation.pdf At home 2

Are you certain that you have the correct port selected for the NanoVNA? And are you certain that the software on the NanoVNA is reasonably current? -- Sent from my Android device with K-9 Mail.

In about 75 seconds the NanoVNA Saver main screen finally shows up. But when I try to connect to the VNA comm port it quickly times out: NanoVNASaver.Hardware.NanoVNA_2 - ERROR - Timeout reading

There is no problem using the RF Demo kit with any NanoVNA. If you are having calibration problems check the cal loads with a DMM to make sure you have an open, load and short. Calibrate right on the

NanoVNA Saver was written in python and all the necessary files to run are "packaged" in the .exe file. Each one is scanned by the virus scanner and it takes a long time to load because of this. On