Rigol MSO4000 User Manual page 85

4 To Set the Sample System
2. Waveform Confusion: when the sample rate is lower than twice the actual
signal frequency (Nyquist Frequency), the frequency of the waveform rebuilt
from the sample data is lower than the actual signal frequency. The most
common aliasing is the jitter on a fast edge.
3. Waveform Leakage: when the sample rate is too low, the waveform rebuilt
from the sample data does not reflect all the actual signal information.
MSO4000/DS4000 User's Guide
RIGOL
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