Raymarine e7D Installation And Operation Handbook page 227

Alarms menu
Menu item
MOB Data Type
Alarm Clock
Anchor Drift
Countdown Timer
AIS Targets
Fishfinder Deep
Fishfinder Shallow
Fish
Customizing your display
Description
Determines whether Position or Dead Reckoning (DR) data is
displayed. Assuming that your vessel and the MOB are subject
to the same tide and wind effects, the Dead Reckoning setting
normally gives a more accurate course.
When set to On, an alarm is triggered at the time you specify for
the Alarm Clock Time setting.
When set to On, the Anchor Drift alarm is triggered when your
vessel drifts from your anchor position by more than the distance
you specify for the Anchor Drift Range setting.
When set to On, counts down the time period you specify for
the Timer Period setting, and triggers an alarm when zero is
reached.
When set to On, the alarm for Dangerous Targets is enabled.
This option is only available when an AIS unit is detected. Refer
to the AIS section for details.
If this option is set to On, an alarm is triggered when the depth
exceeds the value that you specify. This option is only available
when a Digital Sounder Module (DSM) is detected.
Note: The Fishfinder Deep alarm limit cannot be set to a
value less than the Shallow Limit.
If this option is set to On, an alarm is triggered when the depth
drops below the value that you specify. This option is only
available when a Digital Sounder Module (DSM) is detected.
Note: The Fishfinder Shallow alarm limit cannot be set to a
value greater than the Deep Limit.
If the Fish alarm and fish depth limits alarm are set to On, a
warning sounds is triggered if any target meets the sensitivity
level and is within the Shallow Fish Limit and Deep Fish Limit that
you specify. The following items are available in the sub-menu:
• Fish — Switches fish alarm On and Off.
• Fish Sensitivity — If the Fish alarm is set to On, an alarm is
triggered when the fish return strength reaches the sensitivity
that you specify.
• Fish Depth Limits — Switches depth limits On and Off.
• Shallow Fish Limit — Specifies the lower value for the Fish
Alarm Depth Limit.
• Deep Fish Limit — Specifies the upper value for the Fish
Alarm Depth Limit.
Options
• Dead Reckoning
• Position (default)
Alarm Clock
• Off (default)
• On
Alarm Clock Time
• 00:00 (default)
• 00.01 to 24:00 hrs
Anchor Drift
• Off (default)
• On
Anchor Drift Range
• 0.01 — 9.99 nm (or equivalent units)
Countdown Timer
• Off (default)
• On
Timer Period
• 00h00m (default)
• 00h01m to 99h59m
Dangerous Targets
• On (default)
• Off
Fishfinder Deep
• Off (default)
• On
Deep Limit
• 2 ft (or equivalent units) to the maximum of the
transducer range
Fishfinder Shallow
• Off (default)
• On
Shallow Limit
• 2 ft (or equivalent units) to the maximum of the
transducer range
Fish
• Off (default)
• On
Fish Sensitivity
• 1 to 10
Fish Depth Limits
• On
• Off (default)
Shallow Fish Limit
• 2 ft (or equivalent units) to the maximum of the
transducer range
Deep Fish Limit
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