Raymarine e7 User Reference page 128

Alarms menu
Menu item
MOB Data Type
Alarm Clock
Anchor Drift
Countdown Timer
128
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.
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
e7 / e7D — User reference