910-269-EN, Rev. B, June 2011
202 Chapter 11
Figure 11-5 DAC setup two points
The instrument has drawn a DAC curve with three levels from the first point to the
second. You have used the auto-80
% function to bring the second point to 80 % full-
screen height. This assures that the point is captured accurately because amplitude
resolution is better at greater echo heights. This also pushes the first captured echo
over 110
% FSH so the main DAC curve and the –6 dB warning curve extend
downward to the second point from off-screen.
While acquiring DAC points, you have three other choices besides Add and 1-Auto:
Delete
Deletes the entire DAC curve acquired.
Erase
Erases only the point(s) within the gated region.
Done
Completes curve acquisition and switches to inspection mode.
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