Tektronix TDS 684A, TDS 744A, TDS 784A Select the Cursor Function

Measuring Waveforms
TDS 684A, TDS 744A, & TDS 784A User Manual 3–99
TDS 700A Models Only: In FastFrame mode, the @ shows the time position of
the selected cursor relative to the trigger point of the frame that the selected
cursor is in. The D shows the time difference between the two cursors only if
both cursors are in the same frame.
Paired. The value after one D shows the voltage difference between the two Xs;
the other D shows the time (or frequency) difference between the two long
vertical bars. The value after @ shows the voltage at the X of the selected cursor
relative to ground. (See Figure 3–61.)
TDS 700A Models Only: In FastFrame mode, the D shows the time difference
between the two cursors only if both cursors are in the same frame.
Non-selected Cursor
(Dashed Line)
Selected Cursor
(Solid Line)
Cursor Readout (H Bars)
Figure 3–60: H Bars Cursor Menu and Readouts
Paired cursors can only show voltage differences when they remain on screen. If
the paired cursors are moved off screen horizontally, the word Edge will replace
the voltage values in the cursor readout.
This procedure and those that follow detail the process for taking a cursor
measurement. To select the type of cursors you want, do the following steps:
1. To display the cursor menu, press CURSOR. (See Figure 3–60.)
2. Press Function (main) ➞ H Bars, V Bars, Paired, or Off (side).
Select the
Cursor Function