44
3. Press
↓
or
↑
to select a setting, then press
ENT
.
4. To return to the previous page, press
EXIT
|
EXIT
.
Alarms
This unit has three different types of sonar alarms. The first is a Fish
Alarm. It sounds when the Fish I.D.
feature determines that an echo is a
fish.
Another alarm is the Zone Alarm, which consists of a bar on the side of the
screen. Any echo on the chart that appears inside this bar triggers the
alarm.
The last alarm setting is the Depth Alarm, which has both a Shallow
and a Deep setting. Only the bottom signal will trigger this alarm. This
is useful as an anchor watch, a shallow water alert or for navigation.
Depth A
l
arms
The depth alarms sound a tone when the bottom signal goes shallower
than the shallow alarm's setting or deeper than the deep alarm's set-
ting. For example, if you set the shallow alarm to 10 feet, the alarm will
sound a tone if the bottom signal is less than 10 feet. It will continue to
sound until the bottom goes deeper than 10 feet.
The deep alarm works just the opposite. It sounds a warning tone if the
bottom depth goes deeper than the alarm's setting. Both depth alarms
work only off the digital bottom depth signals. No other targets will trip
these alarms. These alarms can be used at the same time or individually.
At left, Main Menu and Sonar Alarms command.
At right, the Sonar Alarms menu.
To adjust and turn on the shallow alarm:
1. Press
MENU
|
MENU
|
↓
to
A
LARMS
|
ENT
|
↓
to
S
ONAR
A
LARMS
|
ENT
.
2. Press
→
to
S
HALLOW
A
LARM
D
EPTH
|
ENT
.
Summary of Contents for M68C IceMachine
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