line-to-line correlation facility to be switched off or on.
Such a facility will tend to reduce the noise content of
the picture and should be switched off when initially
setting the gain control. Certain types of step sweep
racons can also be removed by this facility (see Sec-
tion 3.5.3).
6.11 Miscellaneous controls
This section deals with some specialized controls which
will not be found on all civil marine radars.
6.11.1 Echo stretch
In a synthetic display, the radial length of the displayed
echo is normally fixed by the number of elements of
memory activated by the detected response (see Sec-
tion 2.6.6.3). Som
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