8.3 Alarm options
Safety Alarms
Menu item Description Options
Waypoint arrival
If enabled, when you arrive at a waypoint, an alarm is
triggered. This setting allows you to specify the radius
of the waypoint arrival circle. The waypoint arrival
circle is an imaginary circle around the destination
waypoint. When your vessel crosses this circle the
Waypoint Arrival alarm is triggered.
Note: The waypoint arrival alarm is always enabled
if your system includes a Raymarine autopilot.
Enable:
• Enabled (Ticked) (default)
• Disabled (Un-ticked)
Waypoint arrival radius
Default values:
• 19 m — applies to km and nm & m units
of measure.
• 61 ft — applies to Nautical Miles and Statue
Miles units of measure.
Radius / distance range:
• 19 to 18,520 m
• 61 to 60,761 ft
• 0.01 to 10 nm
• 0.012 to 11.508 sm
• 0.019 to 18.52 km
Off track
When enabled, during active navigation an alarm is
triggered when your vessel steers off-track more than
the value you specify for the Off Track XTE setting.
Enable:
• Enabled (Ticked)
• Disabled (Un-ticked) (default)
Off Track XTE
Default values:
• 556 m — applies to km units of measure.
• 0.300 nm — applies to nm and nm & m
units of measure.
• 0.345 sm — applies to sm units of measure.
Radius / distance range:
• 19 to 18,520 m
• 61 to 60,761 ft
• 0.01 to 10 nm
• 0.012 to 11.508 sm
• 0.019 to 18.52 km
Dangerous radar
targets
Alarms are triggered when targets become dangerous.
MARPA targets are deemed dangerous when they are
within the specied:
• Distance / Radius — Closest Point of Approach
(CPA), or
• Time — Time to Closest Point of Approach (TCPA)
MARPA target alarms cannot be disabled.
Safe Distance
• 0.1 nm / 0.1 sm / 0.2 km
• 0.2 nm / 0.2 sm / 0.5 km
• 0.5 nm / 0.5 sm / 1 km (default)
• 1 nm / 1 sm / 2 km
• 2 nm / 2 sm / 5 km
Time to Safe Distance
• 3 min (default)
• 6 min
• 12 min
• 24 min
Alarm management
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