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128 User Manual
To Make Cursors Measurements
Cursors are horizontal and vertical markers that indicate X- axis values and Y- axis values
on a selected waveform source. You can use cursors to make custom voltage or time
measurements on oscilloscope signals.
X Cursors
X cursors are vertical dashed lines that adjust horizontally and can be used to measure
time (when the source is FFT waveform, X cursors measure frequency)
X1 cursor is the left (default position) vertical dotted line; it can be moved to any place of
the screen.
X2 cursor is the right (default position) vertical dotted line; it can be moved to any place of
the screen.
Use the Universal Knob to set the X1 and X2 cursor values. The values are displayed
in the cursors box in the upper-left corner of the screen along with the difference between
X1 and X2 (
△
T) and 1/
△
T.
When cursor type is set to X2-X1 , use the Universal Knob will move the X1 and X2
cursors together. The value under the menu option is the difference between the X1 and
X2 cursors.
Y Cursors
Y cursors are horizontal dotted lines that adjust vertically and can be used to measure
voltage (V) or current (A). When the cursors source is the math function, the unit will
match the math function.
Y1 cursor is the top (default position) horizontal dotted line; it can be moved to any vertical
place of the screen.
Y2 cursor is the bottom (default position) horizontal dotted line; it can be moved to any
vertical place of the screen.
Use the Universal Knob to set the Y1 and Y2 cursor values and the values are displayed
in the cursors box in the top left corner of the screen along with the difference between Y1
and Y2 (
△
Y).
When cursor type is set to Y2-Y1 , use the Universal Knob will move the Y1 and Y2
cursors together. The value under the menu option is the difference between the Y1 and
Y2 cursors.