Reference
Key Points
Dual-Waveform Math. For the dual-waveform math operations, the two
source waveforms interact with
the math operators in the sequence
shown next.
Operation Expre ssion of math wa veform
+
Source1+Source2
-
Source 1 - Source 2
×
Source1×Source2
÷
Source1÷Source2
Scaling and Positioning the Math Waveform. To position or scale a math
waveform, select the math waveform and then adjust it with a v ertical
Position o r Scale control. You can do this whether acquisition is running
or is stopped.
Math Interaction w ith Preview. If you select a channel waveform and
then adjust the vertical Position or Scale control while the acquisition is
stopped, the math waveform rem ains fixed. It does not track the changes
you see to the channel waveform. The sam e is true if you adjust the
horizontal Position or Scale control under these conditions.
Gray-Scale Restriction. Math waveforms are always based on the most
current acquisitio ns and d o not cont ain any g ray-scale information.
Source Waveform Screen Position. When disp laying dual-waveform
math waveforms, make sure that the source waveforms do not extend
beyond the top or bottom edge of the screen. If part of the source
waveform is positioned outside the screen, the math waveform m a y
not display correctly.
88 TDS3000C Series Oscilloscope User Manual
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