Analyzing Wavef
orms
Use the following procedure to build an advanced spectral math expression.
1. Select Math > Spectral Setup... .
2. Select the math waveform that you want
to define.
3. Click the type of spectral waveform
that you want to create. To redefine a
waveform, click Clear.
4. Select the source waveform.
5. To adjust the spectral waveform do one
of the following:
Use the controls in the Spectral
Setup control w indow.
Click Controls, and then use the
multipurpose knobs to adjust the
spectral waveform.
6. You can view time-domain and
frequency-domain waveforms
simultaneously.
Use Gating to select only a portion of
the time-domain waveform for spectral
analysis. (See page 51, Gating.)
Quick Tips
Sources for spectral math waveforms must be channel or other math waveforms.
Use short record lengths for faster instrument response.
Use long record lengths to lower the noise relative to the signal and increase the frequency resolution.
TDS6000B & TDS6000C Series Quick Start User Manual 61
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