Analyze Waveform Data
7. The FFT will appear on the display.
Quick Tips
Use short re cord lengths for faster instrument response.
Use long re cord lengths to lower the noise relative to the signal and increase the frequency resolution.
If desired, use the zoom feature along with the horizontal Position and Scale cont rols to magnify and position the FFT
waveform.
Use the default dBV RMS scale to see a de tailed view of multiple frequen cies, even if they have very different am plitudes. Use
the linear R MS scale to see an overall view of how all frequencies compare to each other.
218 MSO4000 and DPO4000 Series Oscilloscopes User Manual
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