Tektronix CSA7404B, Руководство пользователя

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Creating and Using Math Waveforms
CSA7000B Series & TDS7000B Series Instruments User Manual
3- 207
Use the procedure that follows when defining a spectral math waveform.
Remember to ensure that the sources you use exist. Channel sources must be
acquiring or have acquired data. These sources do not have to be displayed to be
used.
Overview To define a spectral math waveform Related control elements and resources
Prerequisites 1. All channel and reference Waveforms and automatic
measurement scalars that you will use in your math
waveform must be available (channels and references
contain data, measurement scalars are defined, and so
on).
See page page 3--29 for acquisition setup and page 3--63
for trigger setup.
Display the
math control
window
2. From the toolbar, touch the Math button to display the
Define Math control window.
Select spectral
analysis setup
3. Touch Spectral Analysis Setup, and then select the
Create tab to display the Spectral Analysis Setup control
window.
Select a
spectral
waveform
4. Touch Math(x) and select the math waveform that you
want to create from the list.
5. Touch Magnitude to create a magnitude spectral
waveform, or touch Phase to create a phase spectral
waveform.
6. Touch the channel number that contains input data for
the spectral analyzer.
7. If you want an averaged spectral waveform, touch
Average, touch Avgs, and then set the number of
averages in the control window.
Note. If you want to redefine your waveform, touch the
Clear button and repeat the above steps.
To Define a Spectral Math
Waveform