Analyzing wavef
orms
MSO5000 and DPO5000 Series
6. View time-domain and frequency-domain
waveforms simultaneously.
Use Gating to select only a part of
the time-domain w aveform for spectral
analysis. (See page 118, Gating.)
Quick tips
Source
s for spectral math waveforms must be channel or other math waveforms.
Use sho
rt record lengths for faster instrument response.
Use lo
ng record lengths to lower the noise relative to the signal and increase the frequency resolution.
Diffe
rent window functions produce different filter response s hapes in the spectrum and result in different resolution
bandwidths. See the online help for more information.
The resolution bandwidth (RBW) directly controls the gate width. Therefore, the time domain gate markers move
as you adjust the control.
You can display the linear magnitude of the real data or the imaginary data in the spectrum. This is useful if you process
the s
pectrum off line and transform it back into a time domain trace.
MSO/DPO70000DX, MSO/DPO70000C, DP O7000C, and MS O/DPO5000 Series U ser M anual 131
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