B&K Precision 2532B - Manual - Manual (Page 169)

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4. Connect the channel 1 probe to the input of the network, and
connect the channel 2 probe to the output.
5. Press the “AUTO” button.
6. Turn the “Volts/div” knobs to display approximately the same
amplitude signals on each channel.
7. Press the “DISPLAY” button.
8. Press the Format option button and select “XY”.
9. The oscilloscope displays a Lissajous pattern representing the
input and output characteristics of the circuit.
10. Turn the VOLTS/DIV and VERTICAL POSITION knobs to
optimize the display.
11. Press the “Persist” option button and select “Infinite”.
12. Press the “Intensity” or “Brightness” option buttons and turn the
“Universal” knob to adjust the contrast of the screen.
Apply the Ellipse method to observe the phase difference between the two
channels