User`s manual

Table Of Contents
Figure 12.5
One powerful way to inspect a waterfall is to enable its marker. Press the button.
The display should change as in Fig.12.6. It is very easy to locate frequency zones
where the decay 'suffers', like the peak around 2200Hz. After placing the cursor on
it, it is possible to quickly move back and forth the calculated slices by means of the
up and down keyboard arrows.
Figure 12.6
Let's now change the CSD aspect. Go to the waterfall settings dialog and input
0.1ms Time Shift. After recalculating it you obtain the plot in Fig.12.7; as you now
notice the slices are closer in time and decaying modes are more evident. Since the
time span chosen for this waterfall was about 6.1ms the maximum allowed Time
Shift you could input was around 0.2ms (considering 30 spectra as in this case).
Figure 12.7
Let's now change the CSD aspect again. Go to the waterfall settings dialog and
check the Reference box. After recalculating, you obtain the plot in Fig.12.8
12 WATERFALL , DIRECTIVITY & 3D 159