Spider DSA User’s Manual
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Figure 135. Live Signal
There are also signals derived from these time streams: block signals, labeled
Block, FFT of time signals, labeled as FFT, auto power spectra signals, labeled
APS, and the frequency response functions, labeled FRF. The labels are followed
by the location ID of the original time stream signal in parenthesis (or, in the case
of FRF, the location ID of the excitation channel followed by the ID of the
response channel). These signals will only show in the live signal list if the
measure option is enabled in the Signal Setup tab.