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When the Z-9500 is first turned
on,
the
display
will
appear
similar to the
one on the
previous page.
The
digital
bottom
depth
is
displayed
in the
upper
left corner of the screen. The word "AUTO" in the
upper
center
of the
display
indicates the sonar's automatic feature is on. A small
note
symbol
next to the "AUTO" indicator means the alarm
speaker
is
enabled.
SONAR
OPERATION
AUTOMATIC
When the Z-9500 is first turned
on,
the Automatic feature
is enabled,
This is indicated
by
the word "AUTO" at the
top
of
the screen. The
Automatic feature
adjusts
the
sensitivity
and
range
so the bottom
signal
is
displayed
in the lower
portion
of the screen at all times.
To turn Automatic
off, simply press
the AUTO
key.
The letters "Man"
appear, indicating
the unit is in the manual mode. To turn
Automatic
on,
press
the AUTO
key again.
SENSITIVITY
The
sensitivity key
on the Z-9500 controls the
ability
of the
unit to
pick
up
echoes. A low
sensitivity
level excludes much of the bottom infor-
mation,
fish
signals,
and other
target
information.
High sensitivity
levels enable
you
to see this
detail,
but it can also clutter
the screen
with noise.
Typically,
the best
sensitivity
level shows a
good
solid
bottom
signal
with
Grayline®and
some surface clutter.
When the Z-9500 is in the Automatic
mode,
the
sensitivity
is
automati-
cally adjusted
to
keep
a solid bottom
signal displayed, plus
a little more.
This
gives
it the
capability
to show fish and other detail.
Sometimes ft becomes
necessary
to
manually
increase or
decrease the
sensitivity.
This
typically happens
when
you
wish to see more
detail,
so
an increase in
sensitivity
is indicated. The
procedure
to
adjust
it
is
the
same whether the unit is in the automatic or manual mode.
To
adjust
the
sensitivity, press
the
SENS
key.
menu
appears
on the left side of the screen.
menu is
immediately
beneath it.
(See
the screen
page.)
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COMMANDER COASIGUARD ACTIVITIES
EUROPE, LONDON.
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COORDINATOR OP CHAIN OPERATIONS LOCATION LORMONSTA
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CONTROLSITE LORMONSTA
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The
sensitivity adjust
The
Grayline adjust
at the
top
of the next
7
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