Garmin Echo 150 - Using the echo 100 and echo 150; Automatic Sonar Zoom; Sonar Gain Configuration; Water Depth Alarms

Adjusting
the
Zoom
on
the
Sonar
Screen
Automatically
You
can
adjust
the
zoom
of
the
Sonar
screen
by
selecting
the
span
of
the
view
and
locking
the
screen
to
the
contour
of
the
water
bottom.
For
example,
if
you
select
a
span
of
10
meters,
the
device
will
display
an
area
from
the
water
bottom
to
10
meters
above
the
bottom.
1.
From
the
Sonar
screen,
select
MENU
>
Zoom
>
Auto.
2.
Select
the
span
you
would
like
to
show.
Pausing
the
Screen
From
the
Sonar
screen,
select
MENU
>
Pause.
Resuming
the
Screen
After
pausing
the
sonar
screen,
select
MENU
>
Resume.
Setting
the
Gain
Manually
The
gain
setting
controls
the
sensitivity
of
the
sonar
receiver
to
compensate
for
water
depth
and
water
clarity.
To
see
more
detail,
increase
the
gain.
If
the
screen
is
cluttered,
decrease
the
gain.
To
set
the
gain
manually,
increase
the
gain
setting
until
you
begin
to
see
"noise"
in
the
water
portion
of
the
screen,
then
slightly
decrease
the
gain.
1.
From
the
Sonar
screen,
select
MENU>
Gain>
Manual.
2.
Select
A
to
increase
the
gain
setting
until
you
begin
to
see
noise
in
the
water
portion
of
the
screen.
3.
Select
T
to
decrease
the
gain.
1
Using
the
echo
1
00
and
echo
150
Setting
the
Gain
to
Auto
1.
From
the
Sonar
screen,
select
MENU
>
Gain.
2.
Select
an
option:
•
To
display
the
sonar
screen
with
higher
sensitivity
and
to
show
weaker
signals
and
more
noise,
select
Auto-
High.
•
To
display
the
sonar
screen
with
normal
sensitivity,
select
Auto-Med.
•
To
display
the
sonar
screen
with
lower
sensitivity
and
less
noise,
select
Auto-Low.
Setting
the
Shallow
Water
and
Deep
Water
Alarms
You
can
set
an
alarm
to
sound
when
the
depth
is
shallower
or
deeper
than
a
specified
value.
1.
From
the
Sonar
screen,
select
MENU>
Setup>
Alarms.
2.
Select
an
option:
•
To
sound
an
alarm
when
the
depth
is
shallower
than
the
specified
depth,
select
Shallow
>
On.
•
To
sound
an
alarm
when
the
depth
is
deeper
than
the
specified
depth,
select
Deep>
On.
3.
Select
the
depth
that
triggers
the
alarm.
The
alarm
setting
appears
on
the
Alarms
screen.