Measuring Waveforms
3–90 TDS 684A, TDS 744A, & TDS 784A User Manual
With no menus displayed, the measurement readouts appear far right of the
display graticule. (See Figure 3–52.) You can display and continuously update as
many as four measurements at any one time. With any menu displayed, the
readouts move to the right side of the graticule area.
Measurement Readout Area
Figure 3–52: Measurement Readouts
Measurement 1 is the top readout. Measurement 2 is below it, and so forth. Once
a measurement readout is displayed in the screen area, it stays in its position
even when you remove any measurement readouts above it.
To use the automatic measurements you first need to obtain a stable display of
the waveform to be measured. (Pressing AUTOSET may help.) Once you have a
stable display, press MEASURE to bring up the Measure menu. (See
Figure 3–53.)
1. Press MEASURE ➞ Select Measrmnt (main).
2. Select a measurement from the side menu. Note the following rules for
taking automatic measurements:
You can only take a maximum of four measurements at a time. To add a
fifth, you must remove one or more of the existing measurements.
To vary the source for measurements, simply select the other channel and
then choose the measurements you want.
Measurement ReadoutsDisplay Measurements