GRAYLINE
level,
also. The level
chosen
by
the Ultra Ill at
power
on is
usually adequate
for most conditions.
Experiment
with
your
unit to find the
GRAYLINE
selling
that's best for
you.
ToadjustORAYLINE, pressthe
_______________________________
MENU
key,
then
pressthe key
UTQ
j-
0
adjacent
to the "ADJUST
93 3
FTU
GRAYLINE" label. A screen
•
'I
similar to the one at
right ap-
pears.
Now
press
the left arrow
key
to decrease the
gray
level.
Press the
right
arrow
key
to
increase it. The
percentage
of
:m:
___________________
The bar chart also
gives
a
—
60
graphical
indication of the
40EE
I
irc-
.
GRAYLINE level. You can see
the
change
on the screen
(both
on the menu and
on the chart
record)
as
you press
the
keys.
After
you've
made the
adjustment, press
the CLEAR
key
to erase the menu.
FISH l.D.
The Fish l.D. feature identifies
targets
that meet
certain conditions as fish.
The
micro-computer analyses
all echoes and eliminates
surface
clutter,
thermoclines,
and other
signals
that
are undesirable. In most
instances,
remaining targets
are fish. The Fish l.D. feature
displays symbols
on the
screen in
place
of the actual fish echoes. There
are fourfish
symbol
sizes:
tiny,
small, medium,
and
large.
These are used to
designate
the relative
size between
targets.
In other
words,
it
displays
a small fish
symbol
when
it thinks a
target
is a small
fish,
a medium fish
symbol
on a
larger target,
etc.
guish
between fish and other
suspended objects
such as
trotlines, turtles,
submerged
floats,
air
bubbles,
etc. Individual
tree limbs
extending
out-
wards from a
group
of limbs is the hardest
object
for the Fish 1.0. feature
to
distinguish
from fish.
You
may
see Fish l.D.
symbols
on the screen when
actually,
there are no
fish. Practice with the unit in both the Fish
.0. mode and withoutto become
more familiar with the Fish l.D. feature.
When the Ultra III is turned
on,
the Fish l.D. feature
is
automaticallyturned
on,
also.
To turn the Fish I.D. feature
off,
press
the menu
key,
then
press
the
key
adjacent
to the "Turn Fish-ID Off" label.
Or
press
the AUTO
key.
This turns the Fish 1.0. feature and automatic off at
the same time. To turn
the Fish I.D.
feature on
again,
first
pressthe
menu
key.
Next, pressthe key
adjacent
to the "Turn Fish I.D. On" label. The
menu
immediately disap-
pears
and the sonar screen returns. Echoes will continue
to scroll across
the
screen, however,
the surface clutter at
the
top
will no
longer
be
displayed. Any
targets
the
micro-computer
determines
are fish will be
displayed
as fish
symbols.
Remember,
the Fish l.D. feature can't be used when
the Ultra III is in the
manual
mode. If
you
turn the Fish I.D. feature on when
the Ultra III is in
manual,
the
micro-computerwill
turn the automatic
feature on. If
you
turn
automatic
off when the Fish I.D. feature is
on,
the Fish l.D.
feature will be
turned off also.
FISHTRACKTM
The FishTrack feature shows the
depth
of a fish
symbol
when it
appears
on the
display.
This lets
you accurately gauge
the
depth
of
targets.
This
feature is available
only
when the Fish ID feature
is on.
To turn the FishTrack feature
on,
press
the menu
key,
then
press
the
key adjacent
to the
"Fish-ID On Off FishTrack" la-
bel untiltheblackboxsurrounds
the "FishTrack" label. Echoes
will continue to scroll across
the
screen,
with the
depth
of
fish
symbols showing
above
them as
they appear
on the
display.
To turn the FishTrack
feature off
again,
first
press
the
azawfl'w
A
A
r
'iliui..u_.uj2
The
micro-computer
is
sophisticated,
but it
can be fooled. It can't distin-
A
-F —
A A
GRAYLINE® ON
GRAYLINE® OFF
23
24
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