Rigol DS1102/4B User Manual page 38

RIGOL
To invert a waveform
Invert turns the displayed waveform 180 degrees with respect to the ground level.
When the oscilloscope is triggered on the inverted signal, the trigger is also inverted.
Figure 2-10 and Figure 2-11 show the changes before and after the inversion
respectively.
2-10
Figure 2-10
The waveform before inversion
Figure 2-11
The waveform after inversion
User's Guide for DS1000B series
Invert off
Invert on
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