Agilent Technologies U1602B User's And Service Manual page 108

3 Using the Scope Functions
Y1, Y2 and delta
measurement
Figure 3-34 Y-cursor measurement for channel 1 signal with Y1 and Y2 cursor lines
5 In Figure 3- 34, the measurement is made for the signal at channel 2.
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The Y1 measurement is –13.60 mV
The Y2 measurement is +56.80 mV.
The delta of Y1 and Y2 voltage measurement is +70.40 mV.
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Agilent U1602B/U1604B User's and Service Guide
Y2 cursor line
Y1 cursor line