234 Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide
14 Cursors
The Y1 cursor is the short-dashed horizontal line and the Y2 cursor is the
long-dashed horizontal line.
The Y cursors adjust vertically and typically indicate values relative to the
waveform's ground point, except math FFT where the values are relative to 0 dB.
In XY horizontal mode, the Y cursors display channel 2 values (Volts or Amps).
When active, the Y1 and Y2 cursor values for the selected waveform source are
displayed in the softkey menu area.
The difference between Y1 and Y2 (ΔY) is displayed in the Cursors box in the
right-side information area.
To make cursor measurements
1 Connect a signal to the oscilloscope and obtain a stable display.
2 Press the [Cursors] key.
The Cursors box in the right-side information area appears, indicating that
cursors are "on". (Press the [Cursors] key again when you want to turn cursors
off.)
3 In the Cursors Menu, press Mode; then, select the desired mode:
• Manual — ΔX, 1/ΔX, and ΔY values are displayed. ΔX is the difference
between the X1 and X2 cursors and ΔY is the difference between the Y1 and
Y2 cursors.
• Track Waveform — As you move a marker horizontally, the vertical amplitude
of the waveform is tracked and measured. The time and voltage positions
are shown for the markers. The vertical (Y) and horizontal (X) differences
between the markers are shown as ΔX and ΔY values.
• Measure — When measurements are displayed, this mode shows the cursor
locations used to make the measurement. When you add a measurement, it
becomes the one that cursors are displayed for. You can use the Measurement
softkey or touch in the Meas sidebar dialog to select the measurement
whose cursor locations are displayed.
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