User`s guide
Measurements and Math Functions 6
InfiniiVision Oscilloscopes User’s Guide 213
Cursor Measurements
Cursors are horizontal and vertical markers that indicate X-axis values (usually time) and
Y-axis values (usually voltage) on a selected waveform source. You can use cursors to
make custom voltage or time measurements on oscilloscope signals, and timing
measurements on digital channels. Cursor information is displayed on the line above the
softkeys.
Cursors are not always limited to the visible display. If you set a cursor, then pan and
zoom the waveform until the cursor is off screen, its value will not be changed. It will still
be there when you return to its original location.
To make cursor measurements
1 Connect a signal to the oscilloscope and obtain a stable display.
2 Press the [Cursors] key. The key will illuminate, indicating that cursors are “on”.
(Press the key again when you want to turn cursors off.) Use the softkeys in the
Cursors Menu to set up your measurement.
• Mode
Manual and Track Waveform modes can be used on waveforms that are displayed
on the analog input channels (including math functions). Binary and Hex modes
apply to digital signals (of MSO oscilloscope models).
• Manual — X, 1/X, and Y values are displayed. Use the Entry knob and
softkeys to change cursor positions.
• Track Waveform — (This feature is enabled at time of purchase with License
MST, or with N5466A post-purchase.) Y1 cursor tracks the waveform assigned
to Source 1 as X1 is moved, and Y2 cursor tracks the waveform assigned to
Source 2 as X2 is moved.
• Binary — Logic levels of displayed waveforms at the current X1 and X2 cursor
positions are displayed above the softkeys in binary. The display is color coded
to match the color of the related channel’s waveform.
• Hex — Logic levels of displayed waveforms at the current X1 and X2 cursor
positions are displayed above the softkeys in hexadecimal.
In Hex and Binary modes, a level can be displayed as 1 (higher than trigger
level), 0 (lower than trigger level), indeterminate state (), or X (don't care). In
Binary mode, X is displayed if the channel is turned off. In Hex mode, the
channel is interpreted as a low if turned off.