Data Sheet

RIGOL 4 To Set the Sample System
MSO4000/DS4000 User’s Guide
4-8
LA Sample Rate
LA sampling refers to the process that the oscilloscope samples the compared digital
signal at a certain time interval. LA sample rate is the reciprocal of the interval. For
example, the oscilloscope with 1 GHz LA sample rate samples digital signals every 1
ns. The digital signal mentioned here refers to the signal generated by comparing the
input signal with the threshold specified by users. The input signal is judged as logic
high level when its amplitude greater than the threshold and logic low level when its
amplitude is lower than the threshold.
The digital channels sample rate of this oscilloscope is up to 1 GSa/s (per channel).
Note that the LA sample rate is displayed in the La SaRate menu and can be
changed by adjusting the horizontal time base (s/div) through HORIZONTAL
SCALE or modifying the “Memory Depth”.