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Test Equipment / Re: Choosing between entry-level 12-bit DSOs
« Last post by ebastler on Today at 09:32:24 am »The Rigol is applying the theory correctly
When was THAT proven?
Rigol have repeatedly cut corners in their signal processing. The sampling rate vs. bandwidth mismatch has been discussed at length here; the very generous inter-channel skew spec, wobbly AC trigger, wonky FFT "resolution bandwidth", incorrect flat-top window function come to mind as well. I would not be surprised at all if they had not gotten the Sinc interpolation quite right.