Lowrance X-25 Installation And Operation Instructions Manual Page 12

Lowrance x-25 sonar: operation instruction.
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Press
the up
arrow
key
to
decrease
the
zoom
size, press
the down
arrow
key to
increase
the
zoom
size.
When
the
unit is switched into
the
zoom
mode,
the
tellers "ZM" appear
at the
top
of the
screen.
The zoom window
size
displays
in the
top right corner
of
the
screen.
To
turn
the
zoom feature
off,
press
the
menu
key until
the
RANGE/ZOOM menu
apears.
Now press
the up
arrow
key.
This
switches
the
unit into
the
range mode,
feature
off.
Zoom
-
Manual Operation
E
ZM——20
3IAFT
ZOOM
SIZE
'-
Wa
2OFT
C
To operate
the
zoom feature when
the
X-25
is
in the
manual mode,
first press
the
menu key.
Then press
the
down
arrow
key
in
the
RANGE/ZOOM menu
to
place
the
X-25
in
the zoom mode. The zoom size
menu
automatically appears
next. You
can
change the zoom size by pressing
the
up
or
down
arrows.
After you select the
desired
zoom
size,
press
the
menu key
until
the
"MOVE ZOOM"
menu appears.
This
menu lets
you move
the
zoom
window up or down
in
one foot
increments
by
pressing
the
arrow keys. Thus,
you
can
move
the zoom window up
towards
the
surface,
down
to the
bottom, or
anywhere
in
between.
The window
stays
____________________
where you put
it.
It doesn't track the
bottom
signal.
To
turn
the
zoom feature off, press the
menu
key
until
the
RANGE/
ZOOM
menu appears.
Now press
the
up arrow key. This
switches
the
unit into
the
range mode, which turns
the
zoom feature
off.
TRANSDUCER CONE ANGLES
The
sound waves
from the
transducer
spread
out
into
the
water in
a
cone
shaped beam.
This
looks much
like
the
beam from
a
flashlight.
The angle
between
the
outside
edges
of the
cone is the
cone angle.
Lowrance offers
a
choice
of
transducers
with either an
8
or 20
degree
cone
angle.
The
transducer supplied
with
the
X-25 has a 20
degree
cone
angle. Typically,
wide cone angle
transducers (20 degrees) are
ideal for
operating
in
shallow
to
medium
water
depths.
The 20
degree
cone angle allows you
to
see
more
of the
underwater world.
In
15
feet
of
water
the
20
degree
cone covers an area
about
six feet
across.
The
8
degree transducer
covers only about a two
foot circle.
The 20
degree transducer
is almost
always
the
best
to
use
in
fresh
water,
the
8
degree mostly in salt
water.
In
a
deep water
environ-
ment,
(300 feet
-
fresh
water, 100
feet
-
salt water)
the
narrow cone
angle
is
more desirable. Since
the
sound
energy is
concentrated
in
a
smaller
area,
it
can
penetrate
to
much deeper
depths..
which turns
the
zoom
C
ZM——2O
34I4FT
C
50'
100'
150'
200'
8
DEGREE
8
17
20
DEGREE
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  • robert oliver Jun 13, 2013 06:42:
    hi, im try to get a manual for a model lowrance x25a fish finder,can you help me?