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Tried it on two different Windows 10 machines - it seems some combinations of sweep settings cause the program to close suddenly. This occurred on both PC's. Calibration was done (400kHz - 5MHz),

Hi Mike, I've heard a number of users mention antivirus problems. I have tried submitting it to VirusTotal, and it seems the "only" things it reports is a set of a few antivirus programs worried about

If I'm looking for discontinuities in the circuit, which total length is 1 foot total and TDR can show it one or two foot away from real point, I think it will be useless. To be more clear what I'm

This is why hugen came out with his 800MHz version of the firmware.

Hi Kurt, thanks for all your help with the calibration! I'm still working on it, and as you say, I need some better functions for saving the resulting calibration, that it may be used later. You are

OK, no problem then. However, please remember - considering the cost of the NanoVNA - it puts more capability in your shirt pocket than most of its predecessors used by Amateurs. As I mentioned, it

Hej Bo, I'll address the port numbering first: Port 0 and Port 1 should probably be "Ch0" and "Ch1", and are taken from the port numbering on the physical device:

LOn Fri, 27 Sep 2019 at 19:34, Bo, OZ2M <groups.io@...> wrote: One more thing. I agree 100% with you. Dave -- Dr. David Kirkby, Kirkby Microwave Ltd, drkirkby@...

Hi group I have measured a low pass filter, but experience some, for me expected, oddities around the maximum usable fundamental frequency of the Si5351A. Please see the attached picture that clearly

19 : "true value" - also : @Dr. David Kirkby : /g/nanovna-users/message/3207 Hello, We both thank you very much for the time you spent to compose such a lengthy reply, by which you

I'm already doing that. Unfortunately I'm not familiar with calibration math, so I have no idea how to improve it. If you can help with the math details for better calibration, it will be nice.

One more thing. It might be an idea to change the name of Port 0 to Port 1 and Port 1 to Port 2 in the S/W GUI so it matches S1x and S2x etc. instead of e.g. S10 ... I acknowledge that in programming

This is the bottom side of the shielded version. The shields are on the right and cover the RF portions. Many..... most maybe.... do not have these shields. If yours does not, do not fret. They make

Avast antivirus cheched the nanovna-saver executable , and now the program can be execute in normal way. Regards Maurizio IZ1MDJ

You're don't understand what I say. I don't say that TDR is waste of time. I say that attempt to integrate it into firmware is waste of controller memory in the detriment of more useful functions. TDR

Yes, it is a shame to have to go to a different board material.? That would probably severely handicap the Chinese vendors of the hardware since most board houses that offer low setup charges and

Actually, the suggestion of V2 being modular is interesting. Many Chinese electronic products are manufactured using a main PCB to hold charging and other ancillary circuits and the wireless and/or

Hello Mike Yes, adding the ADF4351 is a possibility. I was merely referring to the additional PCB, perhaps FR4 has to be abandoned, and component costs. Bo

Bo, Someone suggested using a drop-in alternative chip that would extend operation up to 4 GHz.? This would be very useful because it would then cover the 3.3 - 3.5 GHz band.? It would be a good

Hi Here are some thoughts about a v.2. Make a modular design consisting of RF, processor/digital, display and battery boards. Then each part can be replaced when a better solution is available e.g.