Eagle ULTRANAVGPS Specifications download pdf (Page 34)

Both 8

degree

and

degree

transducers

give

accurate bottom read-

ings,

even

though

the bottom

signal

is much wider on the

degree

model. This is because

you

are

seeing

more of the bottom. Remem-

ber,

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.

SIGNAL

INTERPRETATION

Your

UtraNav

gives

an accurate

picture

of the bottom

that

your

boat is

passing.

bottom of firm

sand,

gravel, shell,

or hard

clay

returns a

fairly

wide

signal.

the automatic mode is off and the

signal

narrows

down,

then

it means that

you

have moved over a mud bottom. Mud

absorbs the

sound wave and returns a weak

signal.

Turn

the

sensitivity

to see a

better bottom

signal.

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 pass

over a

post,

it should be

clearly

visible as a short

line

extending

above

the bottom

signal.

steep slope

returns a wide

signal,

the

steeper

the wider.

Signals

returned from a

high

underwater cliff are

usually

the widest of all.

DIGITAL

BOTFOM

DEPTH\

333FT

4-:

WAYPT

SAVE

WAYPTN

RECALL/

OIF ON

;. :r.c

":.

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