Instructions
RIGOL  Chapter 4 To Set the Sample System   
4-10  MSO5000 User's Guide 
ensure a higher sample rate. 
Press Acquire  Mem Depth, then rotate the multifunction knob    to switch to 
the desired memory depth, and then press down the knob to select the option. You 
can also press the Mem Depth key continuously or enable the touch screen to 
select the memory depth. By default, the memory depth is Auto. The memory depth 
of the analog channel is related to the current channel mode. 
  In single-channel mode, the memory depths available include Auto, 1 Kpts, 10 
Kpts, 100 Kpts, 1 Mpts, 10 Mpts, 25 Mpts, 50 Mpts, 100 Mpts and 200 Mpts. 
  In half-channel mode, the memory depths available include Auto, 1 Kpts, 10 
Kpts, 100 Kpts, 1 Mpts, 10 Mpts, 25 Mpts, 50 Mpts and 100 Mpts. 
  In all-channel mode, the memory depths available include Auto, 1 Kpts, 10 Kpts, 
100 Kpts, 1 Mpts, 10 Mpts, 25 Mpts and 50 Mpts. 
Note: In "Auto" mode, the oscilloscope selects the memory depth automatically 
according to the current sample rate. 
LA Memory Depth 
Press Acquire  More to view the memory depth of the current digital channel 
under LA Mem Depth. The LA memory depth will change with the memory depth of 
the analog channel, and cannot be set separately. The maximum LA memory depth is 
25 Mpts. 
Anti-Aliasing 
At a slower sweep speed, the sample rate is reduced, and a dedicated display 
algorithm can be used to minimize the possibility of aliasing. 
Press Acquire  Anti-aliasing to enable or disable the anti-aliasing function. By 
default, anti-aliasing is disabled. In this case, it is more likely to generate waveform 
aliasing. 
Note: This function should be enabled when the horizontal time base has a large 
deviation from the period of the signal under test (e.g. when the horizontal 
time base is greater than five-fold the period of the signal under test). 
Horizontal Expansion 
Horizontal expansion indicates the reference position that the screen waveform is 
referenced to when it is horizontally expanded or compressed in adjusting the 










