User Manual

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8.4 STATUS2 Settings (FFT)
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NOTE
■ Time axis waveform averaging
After the START key was pressed, data are captured whenever the trigger
conditions are fulfilled. After averaging, FFT processing is performed and the
result is displayed.
Trigger mode: AUTO and AUTO STOP
When the START key is pressed, data are captured even if trigger conditions
are not fulfilled after a certain interval. If averaging is applied to
unsynchronized input signals, the result will be meaningless.
■ Frequency axis waveform averaging
Captured data first undergo FFT processing. Then averaging is performed and
the result is displayed.
Unlike time axis averaging, results are valid also if no trigger synchronization
is used. But if the characteristics of the input waveform allow triggering,
using the trigger for synchronization is recommended.
■ Peak hold (frequency axis)
The specified number of samples are captured, and the peak value is held
(stored) for each frequency.
・For details on summing averaging and exponential averaging , refer to
Section 21.3.6.
・When averaging is used together with the waveform evaluation function,
waveform evaluation is carried out after the specified averaging count is
completed.
・After averaging was carried out, the scaling setting cannot be changed.
・After averaging, recalculation does not take place even if the analysis
channel is changed.