Filter
Top Products
Both 8
degree
and 20
degree
transducers
give
accurate bottom read-
ings,
even
though
the bottom
signal
is much wider on the 20
degree
model. This is because
you
are
seeing
more of the bottom. Remem-
ber,
the shallow
edge
of the
signal
shows
you
the true
depth.
The
rest of the
signal
tells
you
whether
you
are over
rocks, mud,
etc.
SIGNAL INTERPRETATION
Your X-25
gives
an
accurate
picture
of the bottom that
your
boat is
passing.
A bottom of firm
sand,
gravel,
shell,
or hard
clay
returns a
fairly
wide
signal.
If the
automatic mode is off and the
signal
narrows
down,
then it means
that
you
have moved overa mud bottom. Mud
absorbs the sound wave and returns a
weak
signal.
Turn
up
the
sensitivity
to see a better bottom
signal.
Big
rocks or
stumps
on a smooth bottom send
back
signals
above the
bottom level
signal.
The
height
of
the
signal
depends
on the
target's
height.
As
you pass
over a
post,
it should be
clearly
visible as a short
line
extending
above the bottom
signal.
A
steep slope
returns a wide
signal,
the
steeper
the wider.
Signals
returned from a
high
underwater
cliff are
usually
the widest of all.
ON/CLEAR
key
to clear the
display.
If
you
wait a few
seconds,
it
will
automatically
clear.
ZOOM
The zoom feature
enlarges
all echoes on the
screen.
If
the unit is
in
the
automatic
mode,
ittracks the bottom
signal, always keeping
it near
the bottom
of the screen. This lets
you
see small
detail,
at the same
time
enlarging
all echoes
that
appear
on the screen. The unit doesn't
track the bottom in
the manual
mode,
and the
adjustments
are
slightly
different.
Zoom
-
Automatic
Operation
To zoom the
display,
first
press
the MENU
key
until the RANGE/
ZOOM
menu
appears.
Now
press
the down arrow
key.
This
switches
the unit into the zoom
mode. A new menu
immediately appears
as
shown on the
right.
ZM—— 20
31.4
FT
ZOOM
SIZE
•
•-
t
a
TRACK
if
•i
w-p.
C
This is the zoom size menu. Zoom
size is the distance between
the
upper
limit and the lower limit. The
upper
limit shows at the
top
left
corner of the screen. The lower
limit is in the bottom left corner. For
example,
if the
upper
limit is 40 feet and
the lower limit is 70
feet,
the
zoom window size is 30 feet. The
word "TRACK"
appears
in this
menu when
you
first
activate the zoom. This means the
X-25 is track-
ing
the bottom in a zoom
window,
always keeping
it on the
display.
18
7
RANGE
373FT
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