Reference
XY Cursor Menu
The following XY cursor menu items are available while you are in XY display
mode (Display > XY Display > Triggered XY). Push the Cursor button to show
the c ursor me
nu.
Bottom Side Description
Off Turns cursors off.
Function
Waveform Turns waveform cursors on and
displays measurements in rectangular
format (X and Y values). Use the
front-panel Select button to select
whichcursortomove(theactive
cursor). Use the general purpose knob
to m o ve the active cursor.
Independent
Sets cursors to move independently.
Mode
Tracking
Sets cursors to move together when
the reference cursor is selected.
NOTE. The Advanced Analysis application module (TDS3AAM) adds more XY
cursor features, including graticule cursors and polar readouts.
Key Points
XY Waveform Cursors. To turn off the XY waveform cursor measurement, push
the front panel Cursor button, then push the Cursor Function Off side menu
button.
Measurements. The XY waveform cursor measurements show difference (Δ)and
absolute (@) values for the X axis, the Y axis, and the time of the active cursor.
ΔX: 1.43V
@X: -140mV
ΔY: 2.14V
@Y: 480mV
Δt: -660ns
@t: 1.61ms
There are two waveform cursors; a reference cursor , and a delta cursor .
All difference (Δ) measurements are measured from the reference cursor to
the delta cursor. A negative ΔX m easurement means that the delta cursor is
positioned earlier in the waveform record than the reference cursor. A negative
ΔY measurement means that the delta cursor is positioned at a lower Y waveform
signal level than the reference cursor.
All absolute (@) measurements are referenced to the XY w aveform's 0, 0 origin,
and show the value of the active cursor.
0, 0 Origin. The XY waveform origin is the 0 volt point of each source waveform.
Positioning both source waveform 0 volt points on the vertical center graticule
places the origin in the center of the screen.
62 TDS3000C Series Oscilloscope User Manual
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