Select > Settings > AIS Alarms > Collision Alarms.

Collision Alarms

Sets and disables collision alarms.

Closest Point of Approach (CPA)

Sets the closest point of approach (CPA) value for all targets. If a target is projected to approach your vessel closer than the specified distance, it is considered a collision risk.

Advanced warning (TCPA)

Sets the Advanced warning (Time to Closest Point of Approach) value for all targets. When a target is considered a collision risk, the radio issues an alert at the specified time before the vessel is projected to reach its closest point of approach to you.

Target Speed

Sets the threshold speed for all targets. If a target is considered a collision risk, but their speed is lower than the specified value, the radio does not issue a collision alarm.

Select > Settings > AIS Alarms > MOB Alarms.

MOB Alarms

Sets and disables man overboard (MOB) alarms.

Test MOB Alarms

If turned on, the radio issues an MOB alarm when it detects a test transmission from an AIS-equipped MOB device.