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Measuring Waveforms
Measurement Units (TDS 400A Only)
When switching from internal to external clocks, units of seconds become
clocks, units of Hertz become /clock, and units of Vsec become Vclocks.
Select and Display Measurements
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 (Figure 3-39).
Figure 3-39: Measure Menu
Measurements are made on the selected waveform. The measurement display
tells you the channel the measurement is being made on.
1. Press MEASURE ➞ Select Measrmnt (main).
2. Select a measurement from the side menu.
Remove Measurements
To remove measurements, do the following steps:
1. Press MEASURE ➞ Remove Measrmnt (main).
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TDS 420A, TDS 430A, TDS 460A & TDS 510A User Manual