User Manual

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The current sampling rate is displayed in the information area at the upper-right corner of the
screen.
When the sampling rate is too low, the sampled waveform may contain distortion, aliasing, and
leakage.
1. Waveform Distortion: When the sampling rate is too low, waveform details are lost and the
displayed waveform is different from the actual signal.
Figure 25 - Waveform distortion
2. Waveform Aliasing: When the sampling rate is lower than twice the Nyquist frequency, the
frequency of the waveform reconstructed from the sample data is lower than the actual
signal frequency. The most common aliasing is jitter on a fast edge.
Figure 26 - Waveform aliasing
3. Waveform Leakage: When the sampling rate is too low, the waveform reconstructed from
the sample data does not contain all the actual signal information.
Figure 27 - Waveform leakage
Pulse disappears