Bedienungsanleitung Lowrance X-50 (Seite 10 von 24) (Englisch)

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OPERATION

Generally,

wide cone

angle

transducers

(20 degrees)

are

ideally

When the X-50 is first turned

on,

automatically

finds and

displays

the

bottom

depth,

sets the

sensitivity level,

and much more. If

desired,

the

X-50 can be left in this automatic mode to find fish and the bottom

condi-

tions

they prefer. However,

virtually every

function of the X-50 can be

manually adjusted

that "fine

tuning"

of the unit to the

surrounding

conditions can

made. Take this manual out on the water as a reference

guide

help you get

the most out of

your

X-50.

[ON]

The ON

key

is located in the lower

right

corner of the

keyboard.

placed

this location so that it can be

easily

found—even at

night

To turn

the X-50

on, press

the ON

key.

An audible

beep

will be heard

signifying

the

X-50

knows

that

key

has been

pressed.

The chart

lights

will

begin

flashing,

then

stop

after six seconds. The chart will

begin scrolling

across

the

display

and the number "0" will flash. This number is the

digital

bottom

depth

display.

After

the unit has found the

bottom,

the

depth

will

displayed.

OFF

2nd

[OFF

To turn the X-50

off, simply press

the OFF

key.

[2ND]

The X-50

has

many

different

functions,

but

only

a limited amount of

space

for

keys. Theretore,

some of the

keys

have more than one

function.

Each

key's primary

function is

printed

one

color,

while it's second func-

tion is

printed

in white. The "2nd"

key

must be

pushed

to access the

second function

printed

in white on the

appropriate

key.

For

example,

the AUTO

key

is also labeled "LIGHT". If

you press

the

AUTO

key by

itself,

the X-50 will be taken out of the automatic

mode.

However,

you press

the 2nd

key,

then the AUTO

key,

the X-50's

lights

will

be turned on. The 2nd

key just reassigned

the

meaning

of the AUTO

key

from AUTO to LIGHT.

suited 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,

while the 8

degree

transducer is used

mostly

in salt water In a

deep

water

environment, (300

feet—fresh

water,

100 feet—salt

water)

the nar-

row cone

angle

is more

desireable because

can

penetrate

to much

deeper depths

since the sound

energy

is concentrated in a

smaller area.

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

because

you

are

seeing

more of the bottom.

Remember,

the shallow

edge

of the

signal

shows the true

depth.

The rest of the

signal

tells

you

whether

you

are over

rocks,

mud,

etc.

Transducers on saltwater boats need to be

painted

with a thin coat of

anti-foulant

paint

prevent organisms

from

growing.

unchecked,

barna-

cles and other marine

growth

will cause a decrease in the transducer's

sensitivity.

Do not use a metal based anti-foulant

paint

as it will decrease

the transducer's

senstivity.

There are

special

anti-foulant

paints specifi-

cally designed

for transducers.

They're readily

available at most marine

dealers.

SIGNAL

INTERPRETATION

Because

your

X-50 is both

extremely

sensitive and

powerful,

can

give you

an accurate

picture

of the kind of bottom over which

your

boat is

passing.

bottom of firm

sand, gravel, shell,

or hard

clay

returns a

fairly

wide

signal.

the automatic

sensitivity

is turned off and the

signal

narrows

down,

means that

you

have moved over a mud bottom because mud

absorbs the sound wave and retums a weak

signal.

Turn

the

sensitivity.

GRAYLINE is

especially

effective in

determining

the

composition

of the

bottom. With a hard bottom

signal,

the

grayline

will be wide. As the boat

passes

over the mud

bottom,

the

grayline

will narrow

down,

or it

may

disappear altogether.

GRAYLINE works

independently

of the

automatic

function,

so it can be used even if automatic

sensitivity

is on.

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

you approach

post

or a tree

stump,

it will be

clearly

visible as a short

line

extending

above the bottom

signal.

steep slope

returns a wide

signal,

the

steeper

the

slope,

the wider

the

signal,

with the

signal

returned from a

high

underwater cliff

being

the

widest

of all.

Brush

usually

lies on the bottom and shows

clumps rising

above the bottom

signal.

Brush

signals

look similar to

large

rocks,

however

their

signal

is not as

strong

as rock.

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