Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

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problem with NanoVNA-QT software

liang 2021/04/23 17:11

I am getting this error when I try to connect to the device:
under "Select Device", it shows up as "\\.\COM7", then I got this error:
"xavna_read_autosweep failed: Resource deadlock avoided"

Any suggestions?

BILL 2021/04/23 18:01

I have the exact same issue (but just a different COM26). Same error though.  I can't figure it out. Thanks for any help.

BILL 2021/04/23 18:11

Solved.  I re-installed the Windows driver (CypressDriverInstaller_1.exe) ( ) and this fixed all my issues mentioned above.


BILL 2021/04/23 18:13

I had the exact same problem. The solution was to re-install : Windows driver (CypressDriverInstaller_1.exe) ( )

I hope this helps.

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