Eagle ID-6300 Specifications download pdf (Page 16)

GLOSSARY

NOISE

ANCHOR WATCH

-

A

selling

ofthe sonar unit'salarm. Thealarm

activates

when the boat drifts into shallower

or

deeper

water than

the alarm set

points.

BACK-LIGHTED -A

displayorkeyboard

illuminated from behind

bya light.

Back-lighted displays

and

keyboards

are essential when

night fishing

or

navigating.

CAVITATiON -Air bubbles created

by

the

high speed

movement of

a boat

or

transducer

through

water.

CHART SPEED

-

(1)

The

speed

of the chart

paper

on a

paper graph

recorder.

(2)

The

speed

of an

Image

across the screen of a

liquid

crystal

graph. (Also

called "scroll

speed").

CONE

ANGLE

-

Width of the transducer's cone of

sound.

Eagle

has

transciucerswfth cone

anglestrom

8to45

degreestosuitthevarying

needs

of

fishermen.

CRT

-

Abbreviation for Cathode

Ray

Tube. See Video

Graph.

DEFINITION

-

The

ability

of a

sonar unit's

display

to show

detail. A

high

resolution

display

can show more detail

than a low resolution one.

DISCRIMINATION

-

Afeature that allows the

sonarto eliminate noise and

displayonlytruetarget

information. Discrimination on

Eagle products

cuts

out false

signals

from other

sonar, noise,

thermoclines,

and more.

FISH ALARM

-

An alarm that

activates when a fish is

detected.

FISH ARCH

-

A

sonar with

good

resolution

displays

fish

signals

with an

upsidedown

"V'7

orarch. This

distinguishesfish

signalsfrom othertargets.

Minimize

electrical noise

by routing

the

power

cable

away

from

other

possible

sources of electrical

interference. One of the

largest

noise

generators

is the

engine's

wiring

harness that runs

from the

engine

to

the

instrument

panel.

This harness

usually

contains a wire

forthe tachometer

which radiates HF

(radio

frequency) energy.

For

best

results, keep

the

power

and

transducer cables

away

from the

engine wiring. Also, bilge

pump wiring

can

sometimes

radiate noise so

try

to

keep

the ID-6300's

cables

away

from

those wires.

VHF

radloantenna cables

radiateRF

energyat

higherpowerlevels

than eventhe

engine's

wiring

harness. It is

importantto

keepthe

lD-6300's

power

and transducer

cables

as far

away

as

possible

from VHF radio

cables.

If

Interference

begins

at

slow

boat

speeds, worsening

as the boat

speed increases,

then a

probable

cause is

acoustic

noise,

or

cavitation.

This

noise is not

electrical,

but

rather

mechanically

induced noise from

the

transducer.

Stop

the

boat,

put

the

engine

in

neutral,

and increase the

Rpm.

If

the noise does not

increase on

the

display,

then it

is cavitation.

Usually,

air

bubbles

passing

overthefacé

ofthetransducercreateacoustjc

noise.

Thefastera

boattravels,

the more

airbubbles increase

and

generate

noise on

the

display.

To

eliminate this

problem,

read the

transducer

owner's manual for

proper

mounting techniques.

TRANSDUCER

Installation

instructions for the

transducjer are

with the transducer

in a

separate

package.

Please read

the instructions

carefully

before

you

install

the

transducer.

FLUSH MOUNT

-

A transom mount transducer

that is installed with the

bottom

of the transducer

flush with the

bottom of the hull.

GIMBAL

BRACKET

-

A bracket used to

Install a sonar unit

permanently.

The sonar unit can

rotate in the bracket for

the best

viewing angle.

GRAYLINE -This function

shows the

relative

strength

of

signals displayed

on

the screen.

Signals

weaker than

the GRAYLINE

selling

are

displayed

in

black,

stronger

targets

are

gray.

It

also

gives

clues to the

compostition

34

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