MSO4000/DS4000 User’s Guide  11-15 
Chapter 11 Waveform Recording    RIGOL 
Note: 
  The actual adjustable range of the start frame is from 1 to the end 
frame (End Frame) currently set.  
  The larger the rotation amplitude of the outer knob of the 
navigation knob is, the faster the variation of the value will be. 
When you need to adjust the start frame within a relatively larger 
range, this function can help you quickly finish the setting. 
 
b.  Press End Frame and turn the multi-function knob   or the inner 
knob of the navigation knob to adjust the end frame of waveform 
analysis (the unit is frame) at a relatively smaller step or turn the outer 
knob of the navigation knob to adjust the end frame of waveform 
analysis at a relatively larger step. The maximum adjustable range is 
from 1 to the number of frames recorded. The default is the number of 
frames recorded. 
Note: 
  The actual adjustable range of the end frame is from the start 
frame (Start Frame) currently set to the number of the frames 
recorded.  
  The larger the rotation amplitude of the outer knob of the 
navigation knob is, the faster the variation of the value will be. 
When you need to adjust the end frame within a relatively larger 
range, this function can help you quickly finish the setting. 
 
3)  Set the waveform analysis threshold 
Press Threshold and turn the multi-function knob   to set the threshold 
of waveform analysis. The range available is from 1% to 99%. The default 
is 10%.  
 
The threshold is used to judge whether the data frame is an error frame. 
The judgement mode is related to the analysis mode currently selected. 
Please refer to “Trace Mode” and “Pass/Fail Test Mode”.  
 
4.  Start the analysis 
After setting the desired waveform analysis parameters according to the steps 
above, press Satrt and the oscilloscope will start the waveform analysis 
according to the current settings.  
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