MSO4000/DS4000 User’s Guide  11-3 
Chapter 11 Waveform Recording    RIGOL 
Tip 
 
Maximum Number of Frames 
In the waveform recording menu, Total Frames shows the the maximum number 
of frames that can be recorded currently. As the waveform memory capacity is 
fixed, more points per frame (namely the memory depth) results in a smaller 
number of waveform frames. Thus, the maximum number of frames 
recording is related to the “Memory Depth” currently selected (refer to “To Set 
the Memory Depth”). In addition, the maximum number of frames is also 
related to the on/off states of the digital channels, as shown in the table below.  
 
Table 11-1 Maximum Number of Frames 
Memory Depth 
Maximum Number of Frames 
No digital channel 
is turned on  
One or more digital 
channels are turned 
on  
Interweave:  14 k points 
31986  16320 
Non-interweave:  7 k points 
Interweave:  140 k points 
1999  1023 
Non-interweave:  70 k points 
Interweave:  1.4 M points 
249  127 
Non-interweave:  700 k points 
Interweave:  14 M points 
31  15 
Non-interweave:  7 M points 
Interweave:  140 M points 
2  2 
Non-interweave:  70 M points 
 
Note: Memory Depth = Sample Rate × Horizontal Time base × Number of Grids 
Horizontally on the Screen. For MSO4000/DS4000, the “Number of Grids 
Horizontally on the Screen” is 14. Therefore, when the memory depth is set to 
“Auto”, the mximum number of frames of waveform recording is related to the 
current “Sample Rate” and “Horizontal Time base”. 
 
 
2.  Set the interval 
The interval refers to the time interval between the frames during the recording 
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