the AUTO
key again
to switch it. Press the CLEAR keyto
erase the AUTO! _________________ ________________ shown at twice the size as the
MAN
menu.
All of the X-55A's features adjust the same with the Broadview on.
Sensitivity, Range, Grayline®and
all the others
adjust eitherusing
thefront
panel buttons orthrough
menu selections. The
onlydifference
is when two
charts are showing on the display at the same time. You will get a new
menu, letting you
switch between charts. This
gives you
the
abilityto
have
different ranges, sensitivity settings, etc.,
on each chart.
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
achoice of transducerswith eitheran
8 or2O
degree
cone
angle. ThetransducersuppliedwiththeX-55A hasa2o
degree
cone
angle.
Typically,
wide cone
angletransducers (20 degrees)
are ideal
foroperating
in shallow to medium water
depths. The 20
degree
cone
angle allows
you
to see more of the underwaterworid. In 1 5feetof waterthe2o
degreecone
covers an area about sixfeet across. The B
degree
transducercovers only
about a two foot circle.
The 20
degree transducer is almost
always the best to use in fresh
water,
thea degree mostly in salt water. In a
deep water environment, (300
feet
- freshwater, 1 Oofeet-
saltwater) the
narrowconeangle is more desirable.
Since the sound energy
is concentrated in a
smallerarea, it can
penetrate
to much deeper depths.
Both 8
degree
and 20
degree
transducers give accurate bottom readings,
even though the bottom
signal is much
wide!
on the 20
degree model. This
is because you are seeing more of
the bottom. Remember, 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.
if the cone passes
over a fish in shallow
water,
the signal displayed on the
X-55A
may
not arch at all. This is due to the narrow cone diameter and the
resolution limitations of the
display.
ones on the right. The echoes
that scroll across the screen
are the exact
same echoes
on
both sides of the screen.
They're simplyenlarged on
the
left side. This feature tracks
the bottom, keeping it on the
display
at all times,
when the
automatic feature is on. Once
you've set the zoom as de-
sired,
press
the CLEAR keyto
erase the menus.
ZOOM - MANUAL MODE
When you press the zoom
key while the unit is in the manual mode, the
screen shown below appears. All of the menus on this screen work
identically as described above. However, one additional menu item is
shown when the unit is in the manual mode: "ADJUST".
To adjust
the zoom, press the
key adjacent to the "ADJUST"
label. A screen similartothe one
below appears.
A zoom bar and
adjust arrows appear on the
screen. The echoes on the left
side of the screen are the
ones
that
appear
between the
top
and
the bottom of the zoom bar.
Pressthe
up
ordown
arrow keys
to move the zoom bar up or ___________
down. As you adjust the zoom
bar,
the echoes move on the left side of the screen at
the same time. The
zoom
adjust
menus will automatically clear a few seconds after
you've
pressed
the last
key. Remember, the X-55A won't track the
bottom when
it's in the manual mode.
36 17
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