Name: Eagle 101
Brand: Eagle
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The

sensitivity

con-

trol on

your

EAGLE

might

compared

the volume on a

radio.

'ibm the

sensitivity

knob to the

right

and

you

increase the

re-

ceiver

sensitivity;

turn

it to

the left and

you

reduce it.

This

feature

provided

so that

you

can use

your

EAGLE

over both

deep

and

shallow water

and

you

should

always

adjust

the

gain

so that a

bright

bottom

signal

shows on the

dial,

re-

gardless

depth.

you

fail to do

so and

have

only

faint bot-

tom

signal

the dial

will

fail to show

fish

in the

water between

the

transducer and

the

bottom. This

condition

shown in the

draw-

ing

above

—

the

fish

are there but

they

aren't shown on

the

dial because

the

gain

set too low.

constant

speed

behind

the dial

on a disc driven

accurately

governed

motor.

The bulb is

lighted every

time

the transmit-

ter

fires. This

provides

a visual

reference

point

on the

dial which

is used

as a

starting point

measure

depth,

and

as an indi-

cator

that the

depth

sounder is

on. Even

though

the neon bulb

flashes,

happens

so. often

that

the human

eye

sees it

as a

nearly

constant

light.

The bulb

also flashes at the

point

the dial that

indicates

the

depth.

Fhe

point

is indicated

the

length

of time it

takes the

sound waves to

reach the bottom

and

return. In

addition,

echoes

ieturned

from

any object

in the

vater

between the

surface and

bottom fire the

bulb,

too. Since

these

echoes are

also

timed,

they

show

the exact

depth

any

fish

—

any

number of fish

—

the water.

And

because the

sound

Waves from the

transducer

down into

the water in a nar-

row cone

angle, they tell,

within

a matter

of a few

feet,

the fish's

location

as well as the

depth.

At a

depth

of 10

feet,

the cone

covers a

circle that is

approxi-

mately

one foot in

diameter;

15 feet it is

two feet

wide,

at 20

feet,

three feet

wide,

the cone

diameter

is four feet wide. Re-

gardless

depth,

the cone of

WEAK SIGNAL

INDICATES GAIN

TOO LOW

Fig.

Fish, 17 ft.

Depth,

35 ft.

Fig.

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Brand	Eagle
Model	101
Category	Sonar
Language	English

Eagle 101 User Manual

Questions and Answers:

Eagle 101 Specifications

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