8.3 Alarm optionsSafety AlarmsMenu item Description OptionsWaypoint arrival If enabled, when you arrive at a waypoint, an alarm istriggered. This setting allows you to specify the radiusof the waypoint arrival circle. The waypoint arrivalcircle is an imaginary circle around the destinationwaypoint. When your vessel crosses this circle theWaypoint Arrival alarm is triggered.Note: Thewaypointarrivalalarmisalwaysenabledif your system includes a Raymarine autopilot.Enable:• Enabled (Ticked) (default)• Disabled (Un-ticked)Waypoint arrival radiusDefault values:• 19 m — applies to km and nm & m unitsof measure.• 61 ft — applies to Nautical Miles and StatueMiles 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 kmOff track When enabled, during active navigation an alarm istriggered when your vessel steers off-track more thanthe value you specify for the Off Track XTE setting.Enable:• Enabled (Ticked)• Disabled (Un-ticked) (default)Off Track XTEDefault values:• 556 m — applies to km units of measure.• 0.300 nm — applies to nm and nm & munits of measure.• 0.345sm—appliestosmunitsofmeasure.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 kmDangerous radartargetsAlarms are triggered when targets become dangerous.MARPA targets are deemed dangerous when they arewithin the specified:• 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 kmTime to Safe Distance• 3 min (default)• 6 min• 12 min• 24 minAlarm management 101
