RIGOL  Chapter 9 Reference Waveform 
9-2  MSO4000/DS4000 User’s Guide 
To Turn the Reference Waveform Channel On/Off 
 
1.  Enable the reference waveform function 
Press REF in the vertical control area (VERTICAL) at the front panel to enable 
the REF function and open the REF menu. The backlight of the key turns on 
denoting that the reference waveform function is enabled. By default, only Ref1 
channel is turned on. 
 
Note: When the horizontal time base mode is X-Y, the reference waveform 
function can not be enabled. 
 
2.  Turn the specified reference waveform channel on or off 
In the REF menu, Press Channel and turn the multi-function knob   to select 
the specified reference waveform channel (Ref1 to Ref10); press the knob or 
press Channel to turn the reference waveform channel on or off. When the 
channel is turned on, 
 is displayed at the front of the reference waveform 
channel name; when the channel is turned off, 
 is displayed. 
 
Note: You can turn on a single reference waveform channel or multiple 
reference waveform channels at the same time according to your need.  
 
For the reference waveform channel that is turned on, the corresponding channel 
icon (for example, 
) is displayed at the left of the screen grid. You can also set the 
reference waveform color, select the the reference waveform source channel, adjust 
the vertical scale and vertical position of the reference waveform and save the 
reference waveform to internal or external memory as well as recall it when needed. 
For details, please refer to the introductions below.  
 
 
 
 
 
 
 
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