Campbell Scientific ID-2000W Software - Manual (Page 12)

SECTION 1. THE BASICS
1-2
FIGURE 1-2. Plot View
The third and last view is the FFT view which is
displayed in Figure 1-3. This view is used to
display an Amplitude Spectrum or Power
Spectrum plot of selected data. These plots
identify either the amplitude or power
associated with discrete frequencies within the
data. You can control the number of data points
used in calculating the FFT as well as the type
of data windowing you wish to use through the Options - Preferences menu. Complete
descriptions of FFT features and procedures
are covered in the following chapters.
All three views share the same application
window and therefore only one may be visible at
any give time. The menus and toolbar buttons
will enable and disable automatically based
upon which view is currently active.