CPA/TCPA alarm ranges must be set up prop- erly taking into consideration the size, ton- nage, speed, turning performance and other characteristics of own ship.

Follow the steps shown below to set the CPA/ TCPA alarm ranges:

1.Open the “ARP-10 MENU.”

2.On the “CPA Set” line, select a CPA limit desired. (Off, 0.5, 1, 2, 3, 5, 6 nm)

3.Press the [ACQ/ENTER] key.

4.On the “TCPA Set” line, select a TCPA limit desired. (30s, 1, 2, 3, 4, 5, 6, 12M)

5.Press the [ACQ/ENTER] key.

6.Press the [MENU] key to close the menu.

Lost target alarm

When the system detects a loss of a tracked target, the target symbol becomes a flashing diamond.

6-7

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Furuno 1942 MARK-2 manual Lost target alarm