Lost Target Alarm (Arp) - Furuno NAVNET 1824C Operator's Manual

Follow the steps shown below to set the CPA/TCPA alarm range:
1. Press the MENU key followed by the ARP SETUP soft key.
2. Operate the Trackball to select CPA.
3. Press the EDIT soft key to show the CPA window.
4. Select a CPA limit desired from 0.5 nm, 1 nm, 2 nm, 3 nm, 5
nm and 6 nm with the Trackball.
5. Press the ENTER soft key. The ARP SETUP menu reappears.
6. Operate the Trackball to select TCPA.
7. Press the EDIT soft key to show the TCPA window.
8. Select a TCPA limit from 30 sec, 1 min, 2 min, 3 min, 4 min, 5
min, 6 min and 12 min.
9. Press the ENTER soft key.
10. Press the MENU key to close the menu.

2.26.9 Lost target alarm (ARP)

When the system detects a lost target, the target symbol becomes
a diamond and tracking is discontinued after one minute.
01
Lost target mark
Canceling a lost target
1. Place the cursor on the target.
2. Press the CLEAR key.
2. RADAR OPERATION
CPA
OFF
0.5nm
1nm
2nm
3nm
5nm
6nm
CPA distance
TCPA
30 seconds
1 minute
2 minutes
3 minutes
4 minutes
5 minutes
6 minutes
12 minutes
TCPA time
2-33