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Unfortunately some users have this problem, due to some driver conflict in windows. It has been discussed in several prior message threads - search for dfu driver to find them. It is possible that the

Mike, DiSlords latest release for the -H line is v1.2, found here. https://github.com/DiSlord/NanoVNA-D/releases Download link:

The likely cause of your current issue is that when you upgrade from a substantially earlier version of firmware, you need to "clear config", and then power-cycle the nano. Thus clears the config

Good evening Stan, I have had a UID and PW to STM for several years now and tried all this STM updating the NanoVNA-H4 at least a couple of years ago. I ultimately had a friend upgrade my Nano using

Well, I updated the firmware to the latest version I could find, and that was a joke. This thing is F;;;ed now. Can turn it on but I can’t calibrate the touch and save it. I touch in the center of

Hmmm... sorry, haven't seen this before. Looks like something hijacked your cal to be done at a cw freq of 800, rather than the range you wanted. I would just reset the cal and do it again.

FYI, for non Windows users, the ST Cube programmer works on the Nano as well, but requires .bin files (provided by Huygen).

Just upgraded to an SAA2-N. Looks like a very solid piece of gear. Which software are users here using for theirs. DisLord or Saver? I plan to use Windows 10 and perhaps Linux with a Pi in the future.

Thank you Stan, I did not hit the CW frequency. It is a showing up on its own while saving to a location as 800Hz.

I don't know the difference. Note that the STM software is meant for programming / flashing the STM processor chips - so I expect that it is more full-featured for a programmer. The only thing we need

Thank you Stan. I will give all that info a good read. So what is the difference between the DEMO version and the latest version? Fred - N4CLA

When you say you "set the stimulation to 7.025 - 7.3MHz for both CW and SSB", did you press the "CW Freq" menu item as part of this action? And did you 'save' the calibration to the slot? Typically

Fred, If you follow *exactly *the instructions in the latest version of the "Absolute Beginner's Guide" (available in the files section here in this group), you will have the correct STM software and

There have been many upgrade suggestions for the correct software to use when upgrading the NanoVNA-H4 and the instructions on how to use that code. I have not found anything that is supposed to be

NanoVNA 4 version 1.0.? I had all slots filled with band segments mainly SSB 5.3305 - 29.7MHz, 3.8 - 4MHz, 7.175 - 7.3MHz, etc. I decided to verify the calibration, I set the stimulation to 7.025 -

Never do free advertising for any commercial clone manufacturer. I benefits nobody except them.

I've been using a 4GB one in my H4, about 10y old. A cheap Kingston. Works fine, no problems yet. The issues with modern cards I gathered from different projects: 1. the new fast cards 8GB+ are much

Tim, the NanoVNA does not require a large SD card (less than 8GB is the appropriate size), but the production quality is not negligible. NanoVNA uses STM32F303, which recognizes the SD card in FAT32

Mike, The error message means, as Hugen wrote, that you need to update the NanoVNA firmware because the software you were using did not recognize the command. So the firmware has not been updated for

I was using NanoVNA-Saver to try to use the VNA on my computer. I have since learned that it is probably less hassle to just use the NanoVNA. Thanks for the response and I have a very bad habit of