Bedienungsanleitung Lowrance X-16 (Seite 7 von 16) (Englisch)

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keyboard

the initial

pulse length

desired and then

press

the PULSE

key.

For

example,

to set the initial

transmit

pulse length

to 1 00 micro-

seconds,

press

PULSE.

This will override the micro-com-

puter's

selection and set the initial

transmitter

pulse length

to 100

micro-seconds. P

100 will be

printed

at the bottom of the

paper

signify

that

the

entry

has been

confirmed.

(Note:

When an initial

transmit

pulse length

set,

this

length

will be fixed for all

depth

settings

until

changed.)

To return

control back to the

micro-computer, press

PULSE

and the

micro-computer

will select

the initial

pulse length.

ALTERNATE

TRANSMIT AND

When

using

the X-16 in

deep

water,

or if

you

wish to

simply

conserve

paper,

may

be desir-

able

to slow the

paper speed

even

more than the automatic

system

allows. However,

when

doing

so,

you may get

over

print"

very

dark, heavy printing

over an area

that is difficult to read. Much detail

can also be lost due to this.

A feature that is available on the

X-16 is the Alternate Transmit and

Print function

which,

when acti-

vated,

causes the

stylus

every

other revolution instead of

every

revolution. This accom-

plishes

four

things:

1. Since the

stylus only prints

every

other

revolution,

the

recorded

information doesn't have

the "over

print" problem,

therefore

good

records are attainable at

slower

paper speeds.

Also,

the

scale numbers are

spread

out

more, making

them more

legible.

2. Reduces the

possibility

"wrap-around".

This is the undesir-

able occurrence of the second or

third bottom echo

printed

on the

paper

at the

top

or middle of the

page. Many

times this can inter-

fere with fish or other

targets

that

you

wish to see.

3. Reduces the reverberation

effect. This

happens mainly

lower

frequency

units,

but it can

happen

higher frequency

mod-

els. Reverberation is

heavy,

scattered noise marks caused

the transmitted

signal becoming

trapped

between the surface and

the

bottom, usually

scattered in

heavy plankton layers

or baitfish

schools. This causes a

great many

lines to be

printed

on the

page. By

enabling

the Transmit and Print

function,

the transmitter is

trig-

gered only

half as

many

times as

normal, puffing

less

energy

into

the water

(same

amount of trans-

miller

power, just

not as

often)

which reduces the amount of

noise seen.

4. Divides the

paper speed by

two. A

significant

amount of

paper

can be saved

by using

the Alter-

nate Transmit and Print feature.

To turn this feature

on,

simply

press

the 2nd

key,

then

press

the

"4"

key.

The

paper speed

will

immediately

slow

down,

signifying

that the function is enabled.

To turn the Alternate Transmit

and Print feature

off,

simply press

the 2nd

key

and then

press

the

"7"

key.

The

paper speed

will

immediately speed up, signifying

that the function has been turned

off.

PAPER SAVE

Although

the Alternate

Transmit

and Print

function will slow the

paper speed,

the

Paper

Save

function

is an even more

powerful

Thus,

you

would use a

degree

transducer

when

looking

for fish

strubture,

easily

find

drop-offs

reefs,

and to see fish

that are

around

you

. . . not

just

below

you.

However,

the

degree

transducer won't

penetrate

greater

depths

as well

as the 8

degree

transducer,

nor will it show

sharp

drop-off

as well. In

deep-water

environment

(100

feet

deeper)

or where

you're

looking

sharp

drop-offs,

the narrow

cone

angle

can sometimes be

more desirable because it can

accurately

detect the loca-

tion of the

drop-off

without

displaying

the fish. In

deep

water,

with the sound

energy being

con-

centrated in a smaller

area,

the 8

degree

transducer can reach to

greater depths.

Both the 8

degree

and the 20

degree

transducers

give

accurate

bottom

readings,

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

the

signal

shows

you

the true

depth.

The rest of the

signal

tells

you

whether

you

are over

rocks,

mud,

dropoffs,

etc.

Thanks to the LSB-200A trans-

ducer switch

box,

you

can have

the best of both worlds.

install-

ing

the LSB-200A near the

operator,

both a 20

degree

and an

degree

cone

angle

transducer

may

be mounted on a boat and

connected to the switch box. A

cable from the switch box is

then

connected to the X-16. Now

either transducer

may

be used

conditions dictate. Use the 20

degree

transducer when

shal-

low to medium

depths

and then

switch to the 8

degree

transducer

when in

deep

water or when

you

need

just navigation

information.

Salt water boats need to have

the transducer

painted

with a thin

coat of anti-foulant

paint

prevent

organisms

from

growing.

If un-

checked,

barnacles and other

marine

growth

will cause a

decrease in the transducer's sen-

sitivity.

Do not use a metal based

anti-foulant

paint

as it will de-

crease the transducers

sensitivity

also.

There are

special paints

the market

specifically designed

for transducers and are carried

most marine dealers.

BASIC OPERATION

On-Off and

Sensitivity

Control

—

Rotate the

Sensitivity

knob

clockwise to turn the unit on. The

Sensitivity

knob works much like

the volume control on a

radio,

that

is,

weaker

signals

will be detected

with

higher settings

the knob.

When

cruising,

or at other times

when

just simple

bottom

contour

information is

desired,

the Sen-

sitivity setting

can be low.

deep

water or over

soft,

muddy

bottoms,

(which produce

weak

echoes),

the

setting

will have to be

higher.

When

high Sensitivity settings

are

used,

a second bottom echo

will

appear.

This is normal and is

caused

the

returning signal

reflecting

off the surface of the

water,

making

a second

trip

to the

bottom and back.

If detailed information about

brush

piles,

individual

fish,

or the

thermocline is

desired,

the Sen-

sitivity

knob should be rotated to

approximately

the ¾

point.

Refer

to the illustrations on

page

6 to

see what effect the

Sensitivity

control

setting

has

on the recorded

information.

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Lowrance X-16 Seite 7

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