Obstruction alarm parameters
The Obstruction alarm parameters must be configured from the Alarm manager before it can be used: .
Obstruction alarmParametersAlarmsObstructionThe following options must be configured for correct operation:
LightHouse chart obstructions — Enables and disables the obstruction alarm.
Indication only — Enables and disables the warning notification dialog (Audible beep and Red detection zone outline only).
Cartography source: — Choose the appropriate (legacy) LightHouse chart for your region.
Safety depth — Specifies the minimum safe depth for your vessel. The Chart app’s Safe contour depth value is synchronized with the Safety depth value.
Safety height — Specifies the minimum height for your vessel.
Obstruction warning ahead — Specifies how much time in advance of reaching the obstruction the alarm will be triggered. This means the faster your vessel speed is, the farther ahead the detection zone will be drawn.
Minimum obstruction distance — Refers to the distance from your vessel boundary to the (virtual) obstruction detection zone around the vessel. This parameter specifies the minimum distance from your vessel to the obstruction detection zone, in 4 directions: port, starboard, aft and (when motionless), fore. The obstruction detection zone is displayed in the Chart app as an oblong shape around your vessel, and turns Red when an obstruction is detected.