Pk threshold
Peak threshold sets the threshold level for peak searches. In order to be
considered a peak, a local max in the FFT spectrum must be above the
threshold level and must go up and down at least one-eighth of full scale,
(one division).
Other FFT measurements
There are a number of time domain measurements that you can make on FFT
waveforms: Tmin, Tmax, Vp-p, Vmin and Vmax. The Tmax measurement is
particularly useful because it returns the frequency of the highest peak on
the display.
FFT Menu
FFTs and Automatic Measurements
21–9
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