Sample Rate - Rigol MSO2000A Series User Manual

RIGOL

Sample Rate

Sample refers to the process that the oscilloscope converts analog signals to digital
signals at certain time interval and stores the signals in sequence. The sample rate is
the reciprocal of the time interval. The maximum real-time sample rate of the analog
channels of MSO2000A/DS2000A is 2 GSa/s.
Note: The sample rate is displayed in the status bar at the upper side of the screen
and in the Sa Rate menu and can be changed indirectly by adjusting the horizontal
time base through HORIZONTAL
The influence on the waveform when the sample rate is too low:
1. Waveform Distortion: when the sample rate is too low, some waveform
details are lost and the waveform displayed is rather different from the actual
signal.
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.
4-6
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