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I ordered one from Bangood, and am waiting for delivery. This is a link to some additional information for the Bangood model, I think they are all about the same. From there you can follow links to download the user manual and the PC software that goes with it.




--
DuWayne? KV4QB

Much appreciated!

FYI here's the (currently active) URL for direct file download should it be difficult for anyone to find:



The device attached to my Windows 7 32-bit machine with no additional device driver required, and the application program NanoVNA v1.01 ran and attached to my NanoVNA with no additional libraries or runtime components required.

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so, how is your impression of this thing?

happy to hear PC software actually working no reason not to try it by myself
Pada Minggu, 9 Juni 2019 23.03.33 WIB, amirb <amir.borji@...> menulis:

so, how is your impression of this thing?

My initial posting at start of group had some impression about physical device and package, you can read it.

About the RAR file with software and documentation, that is new for me today, I have downloaded it and started to use it.

So far I think it (device and software) will be useful. Software has english and chinese (Mandarin?) option for navigation language, that is good. The software seems stable (no crash, no hang yet), and seems run well (fast enough) on my very old low-function Windows 7 laptop (small display, slow CPU, small memory, etc.) Software application exe file is very small about 150K, has a few files required with it, just copy small folder from RAR to machine. No need for windows MSI/EXE install, it is not in your start menu. Device driver was not required on my machine (STMicroelectronics serial port), but .INF file is included in RAR. PDF document is english language, I have started reading PDF documentation and I think so far it is helpful. NanoVNA device and PC software both pretty easy for me to start using without documentation.

Users with more experience and expertise about VNA can provide more precision detail than I can right now. I hope more people will try it and provide advice for uses.

Small detail noticed - Smith chart display mode on the software uses a bit-map background from PNG file (rather than draw the smith chart outline using vector graphics in software) - all other format is vector - so smith chart image is not great, and when measurement data causes data display to only single point (like ideal load, open or short), single point is not clear on display, sometimes not even possible to see on display (small dot with weak color), but maybe that is my very old computer. Also, marker function in software is basic, you hover mouse pointer where you want on smith chart then you see small window with parameter - it is useful.

I just received my Nano yesterday. Using it standalone in the 10-20 MHz region measuring the S11 of an antenna, I am pleased to find that the smith chart matches my HP 8752.
Much more testing to follow.

However, I am unable to connect via the USB/serial link. I pulled the file: nanovna-cdc-acm.inf from the zip file from the banggood site and direct windows to that file when attempting to update the "ChiBios/RT Virtual COM Port". However, windows(win 7 64bit) complains:

"Windows found driver software for your device but encountered an error while attempting install it.
NanoVNA
The system cannot find the file specified."

There appear to be references to other files in the .inf file. Does anyone have any hints on what other files I may need to get this up and running?

Thanks!

I had to remove the driver, and reinstall it. I was able to get it to load. I found NanoVNA v1,01. which works, but not stable.
Is there a way to tell what rev the firmware is? I got mine on Monday, but the eBay seller I got it from sent only the unit and the cal kit
Frank

mdmcpq.inf c:\windows\inf
usbser.sys c:\windows\system32\drivers

If it is a x64 system, try to modify themdmcpq.inf

[FakeModemCopyFileSection]
usbser.sys,,,0x20

to

[FakeModemCopyFileSection]
;usbser.sys,,,0x20

On Tue, Jun 11, 2019 at 07:52 PM, Frank S wrote:

Is there a way to tell what rev the firmware is?

HOME MENU->CONFIG->VERSION

Bob
KN6UXD

On Wed, Jun 21, 2023 at 02:52 PM, Robert Rose wrote:

On Tue, Jun 11, 2019 at 07:52 PM, Frank S wrote:

Is there a way to tell what rev the firmware is?

HOME MENU->CONFIG->VERSION

Why necropost? Lots of current discussions in this group.

Roger