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22.2. Quick Tips
*
If desired, use the zoom feature to magnify the FFT waveform.
*
Use the default dBV RMS scale to see a detailed view of multiple frequencies, even if they have very
different amplitudes. Use the linear RMS scale to see an overall view of how all frequencies compare to
each other.
*
Signals that have a DC component or offset can cause incorrect FFT waveform component magnitude
values. To minimize the DC component, choose AC Coupling on the source signal.
*
To reduce random noise and aliased components in repetitive or single-shot events, set the oscilloscope
acquisition mode to average.
Fig. 29 Rectangle window
Fig. 30 Hanning window
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