Chapter 6 Operations and Measurements    RIGOL 
MSO7000/DS7000 User Guide  6-23 
High Pass 
Only allows the signals whose frequencies are higher than the current lower limit 
frequency to pass. 
 
Press Math → Math1 → Operator to select "HighPass": 
⚫  Press Operation continuously to enable or disable the "HighPass" operation 
function. 
⚫  Press SourceA, and rotate the multifunction knob    to select the channel for 
Source A. Then press down the knob to select the channel. You can also press 
SourceA continuously or enable the touch screen to select the channel. The 
available channels for Source A are CH1-CH4 and Ref1-Ref10. 
Note: The source of Math2 can be CH1-CH4, Ref1-Ref10, or Math1; the source 
of Math3 can be CH1-CH4, Ref1-Ref10, Math1, or Math2; the source of Math4 
can be CH1-CH4, Ref1-Ref10, Math1, Math2, or Math3; only the channels that 
have been enabled currently can be selected. 
⚫  Press Offset to set the vertical offset of the operation results. For setting 
methods, refer to the descriptions in "Parameter Setting Method". You can 
also directly rotate Wave Vertical    POSITION or enable the touch screen 
to adjust the vertical offset. 
⚫  Press Scale to set the vertical scale of the operation results. For setting methods, 
refer to the descriptions in "Parameter Setting Method". You can also 
directly rotate Wave Vertical    SCALE or enable the touch screen to adjust 
the vertical scale. 
⚫  Press ωc to set the lower limit frequency. For setting methods, refer to 
descriptions in "Parameter Setting Method". 
Note: The settable range of the lower limit frequency is related to the Math 
sample rate (displayed at the bottom of the screen when the Math function is 
enabled). The sample rate of the analog channel or the changes of the memory 
depth can affect the Math sample rate. 
⚫  Press More → AutoSetting to adjust the vertical scale and offset of the 
operation results to an optimal value based on the current configuration, so as 
to better observe. 
⚫  Press More → Invert to enable or disable the inverted display function of the 
waveform. 
⚫  Press More → Label to set the label for math operation results. For details, 
refer to descriptions in "Math Operation Label". 
⚫  Press More → Color Grade to enable or disable the color grade display of the 
operation results. When enabled, different colors are displayed on the screen to 
indicate the times of data acquisition or acquisition probability. 
⚫  Press More → Reset ColorGrade to clear the color grade display and display 
the color grade again.