RIGOL MSO/DS1000Z Series - Manual (Page 156)

RIGOL Chapter 6 MATH and Measurement
6-4 MSO1000Z/DS1000Z User’s Guide
Note: You can also press down knob continuously to switch the current
cursor.
3. Display Lissajous Legend
This oscilloscope provides the lissajous schematic diagram under different
frequencies and phases.
Figure 6-9 Lissajous Schematic Diagram
Phase difference
between two signals
Frequency ratio
between two signals