开云体育

Hi All,

It's a bit exhausting and somewhat confusing, reading through the messages and topics to see if this has been addressed previously, so my apologies if it's been covered.

Purchased more than a couple years ago before I was aware of the clone wars, it appears that I have a "worse clone" of the -H hardware as evident by the font on the "NanoVNA" label on the lower right and lack of shields on the PCB. There are no version numbers or identifying marks on the PCB.

I have added the shields on the board, but unaware of any other issues with it.

Currently has eddy555's 0.8.0 firmware loaded and seems to work for my simple needs so far but wondering if there is a newer/better firmware for it.

Suggestions please!

TIA

Rich

Use the latest 1.1.0.0 firmware (-H version) by DiSlord that was posted today. It works on Hugen's NanoVNA-H and clones of this 2.8" device..

Roger

Thanks Roger.

I Loaded the Dislord 1.1.0 and it definitely looks much improved, however the SWR measurement is considerably different between the two firmwares.

0.8.0 seems to be correct, showing the typical rise as you get off frequency, while version 1.1.0 is very low, never getting above 1.5:1.

Is there some aspect of this newer firmware I'm missing?

Rich

So... I forgot to calibrate with the new firmware.

When I do so on the VNA it seems to come back with reasonable numbers, but Nano-saver 3.9 crashes when I try to use the calibration assistant.

Rich

So now the question becomes, which PC software works best?

Thanks

Rich

On Fri, Dec 17, 2021 at 03:41 PM, RichW6BOT wrote:

When I do so on the VNA it seems to come back with reasonable numbers, but
Nano-saver 3.9 crashes when I try to use the calibration assistant.

I have had problems with NanoVNA Saver calibration and crashes on both my -H (old firmware) and -H4 (recent firmware). In a previous post in this group someone mentioned that the Python routines used in Saver do very little bounds error checking and they can abort if something goes wrong. I tend to calibrate on the NanoVNA itself or use the NanoVNA app which never fails when I do calibration.

NanoVNA Saver had a burst of development after the original author transferred it to someone else (due to illness) and there has been little support as of late.

Roger

What's best for one person may not be for another. Try them all and keep the one you're comfortable with and that meets your needs.?


On Fri., 17 Dec. 2021 at 7:56 p.m., RichW6BOT<rich.allen.gordon@...> wrote: So now the question becomes, which PC software works best?

Thanks

Rich

Thanks for the help guys.

I loaded 1.1.0, have been playing with it a bit, and really like the improvements.

Thanks to Dislord, Hugen, and eddy555 for this handy little instrument.

Rich