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I have a NanaVNA-H4, And how would I use it to make an exact 1/2 wave or multiple there-of coax? 1/2, 1.0, 1.5, 2.0, etc... Joe WB9SBD

Have you tried reducing the sweep range? It might be informative to reduce the sweep to 25MHz starting at 300MHz, OSL calibrate at the measurement plane and run the sweep. Then move up 25MHz

You might be receiving strong signals with that antenna, that interfere with the nanoVNA's measurements. If that's the case, at least some of the excursions to negative resistance should not repeat on

** I think it would have been relevant, since you use nanaovna-saver, to post your .s1p files with your participation. -- F1AMM Fran?ois

Hello, v0.7.3 on Windows; Already had my nanovna calibrated in two range: 30 MHz around 315 and another 30 MHz around 434; used an average of 10 sweeps with ~saver which has produced some partly

Use Zeetk (SMC5351A + custom mixer, but this option also work on SM_ST device) or MS5351

In the latest software version: 1.2.43/NanoVNA-H-ZK_20250220.dfu there is an additional generator setting. Now we have three options in the MODE 1. MS5351 2. ZEETK 3. Si5351. What to choose with

Few people on the LibreVNA list did that, maybe ask there. IMHO it's not worth it. Sourcing some of the components is a problem and machining the enclosure is another one. [email protected]>

I wonder how much will cost to build LibreVNA / BOM + PCB price /.Thank you

Clyde, THANK YOU!!! I did not catch the difference earlier, used the H4 firmware and all is working well now! Thank you. Bill WB6YVK

If I read your post correctly, "nanoVNA-H4 hardware build 4.3 using the NanoVNA-H.v1.2.40.bin " Your problem is you used the WRONG firmware!!! You can not use "H" firmware on a "H4"!!!!! And expect

Just did a quick search re nanovna-saver and mint and found a set of instructions for you to follow here: https://forums.linuxmint.com/viewtopic.php?t=410869 ________________________________ Sent:

Yes Sudo was what I meant to type but either I fat fingered it on my phone or it was auto corrected to Suso. So sorry about that. ________________________________ Sent: Sunday, March 23, 2025 8:09:50

I am locking this topic as it has gone far afield of discussion related to NanoVNAs.

I have updated the firmware on my nanoVNA-H4 hardware build 4.3 using the NanoVNA-H.v1.2.40.bin file and STM32cube software, and notice that the red battery LED no longer lights when charging or unit

Quite right, however backdoors are not the usual attack vector for viruses and malware. The attack is tricking users into executing something they shouldn't. "William McLaughlin via groups.io"

History is interesting, you can learn a lot from it. I heard that one of the first times the term ‘bug’ was used involved a moth that got into a relay, keeping it from operating. This group is

As I understand it, back doors were (and presumably, still are) created by programmers as a convenience. They use them because it's quicker for getting into a system than going through the login

If you read it again, you will see that I said what a back door is, I didn’t say it was a virus, it was how a virus was put in computers. Didn’t mean to start an argument. -- Sent from Canary

A backdoor is not a virus. Viruses and malware are created by programmers with malicious intent in order to spread mayhem or for financial gain. A lot of it is offshore these days. It may be fun to