8. AIS/DSC OPERATIONS
8-3
• [Name]: Sorts the list by name, in alphanumerical order.
• [Call Sign]: Sorts the list by call sign, in alphanumerical order.
• [Range/BRG]: Sorts the list by range, in ascending order of distance from own ship.
• [CPA/TCPA]: Sorts the list by CPA, in ascending order.
8.8.3
AIS list sub menu operations
You can tap an AIS target in the list to show the sub menu.
• [Go To]: Set the AIS target as a [Quick Route] destination.
• [Locate On Map]: Move the plotter/radar screen to show the selected AIS target at
the center of the screen.
• [New Point]: Place a point at the AIS target’s location.
8.9
CPA and TCPA alarms
The CPA (Closest Point of Approach) alarm sounds when an AIS transponder
equipped vessel comes within the CPA alarm range set. The TCPA (Time to Closest
Point of Approach) alarm alerts you when an AIS transponder equipped vessel is with-
in the time you specify.
1. From the [Home] screen, tap [Settings] => [Notifications] => [AIS].
2. Tap the [CPA] toggle box to show [ON]. The settings for this alert become active.
3. Drag the slider to set the [CPA], or tap the keyboard icon to enter a value.
4. Tap the [TCPA] toggle box to show [ON]. The settings for this alert become active.
5. Drag the slider to set the [TCPA], or tap the keyboard icon to enter a value.
6. Close the menu.
When a target has a lower CPA or TCPA than the alarm setting, the alarm is triggered,
releasing an audible alert and an on-screen notification. Tap the notification at the top
of the screen to silence the audible alert. Take the necessary precautions to avoid a
collision.
The notification remains until the target is no longer within the alarm setting threshold,
or the CPA/TCPA alarm is disabled.
Tap
AIS target list
AIS target sub menu
