JRC JMA-9932-SA - Page 214

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Height of
Scanner
Detective
Range
Fig. 6.1
Height of
Target
When the height of own
ship's
scanner is 10 m
for instance,
(a)
A target
that can
be detected at
the
radar range of
64
nm on
the radar
display is required to
have
a
height of 660
m or more.
(b)
lf the height of
a target is
10
m, the
radar
range has to be approx.
15
nm. However,
the
maximum radar
range at which
a
target
can be
detected on the radar
display
depends
upon
the size of
the target
and
the
weather conditions,
that
is, the
radar range
may
increase or
decrease depending
upon
those
conditions.
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