Vertical Controls
TDS3000B Serie s User Manual
3-85
Scaling and Positioning the Math Waveform To position or scale a math
waveform, select the math waveform and then adjust it with a
vertical POSITION or SCALE control. You can do this whethe r
acquisition is running or is stopped.
Math Interaction with Preview. If you select a channel wave form and
then adjust the vertical POSITION or SCALE control while the
acquisition is stopped, the math waveform remains fixed. It does not
track the changes you see to the cha nnel waveform. The same is true
if you adjust the horiz ontal POSITION or SCALE control under
these condit ions.
Gray-Scale Restriction. Math waveforms are always based on the most
current acquisitions and do not contain any gray-scale information.
Source Waveform Screen Position. When displaying 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 positione d outside the scree n, t he m ath waveform may
not displa y corre ctly.
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