Nerd Ralph reviews a feature of the Rigol DS1054Z.
I recently found out that in addition to a software frequency measurement (shown in the bottom right) the DS1000Z series has a hardware frequency counter (shown in the top right). The hardware counter is enabled by pressing the “measure” button, select counter, CH1. The display shows 6 digits, or 1 ppm resolution, but I was unable to find a specified accuracy for the counter. My testing suggests the accuracy at ~25C ambient temperature is 1-2ppm.
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