Cpa/Tcpa Alarms - Furuno FI70DSW Operator's Manual

3.10

CPA/TCPA Alarms

The CPA (Closest Point of Approach) and TCPA (Time to Closest Point of Approach)
alarms activate when the distance between your vessel and an AIS target is smaller
than the threshold set. This alarm is used as an aid to avoid collision.
Note: The CPA and TCPA alarms are a navigational aid only. Do not rely solely on
these indications, for safe boating.
1. Access the [Alarms] menu, using the procedure outlined on page 3-1.
2. Press the software keys to select [CPA/TCPA Alarm], then press the function
key.
3. [Alarm] is highlighted, press the function key.
4. Select [OFF] or [ON] as appropriate, then press the function key.
• [OFF]: Disable the alarm. Proceed to step 9.
• [ON]: Enable the alarm.
5. Press the software keys to select [CPA], then press the function key.
6. Press the software keys to set the threshold as appropriate, then press the func-
tion key to apply the changes.
7. Press the software keys to select [TCPA], then press the function key.
8. Press the software keys to set the threshold as appropriate, then press the func-
tion key to apply the changes.
9. Press the Menu/Back key twice to close the menu.
3. ALARMS
3-9