Hi Rudi what did you wish to know?
My nanoVNA was the 'BAD' clone without screening cans over the input stages
and exhibited unwanted vectors due to noise pickup when is Smith Chart mode.
Since adding the cans the noise is cured :-)
Dave
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On Sat, 23 May 2020 at 17:05, <reuterr@...> wrote:
Hello Dave,
Your screen shots does *not* tell the whole story.
72, Rudi DL5FA