Target Alarm; How To Set A Target Alarm Zone - Furuno 1815 Operator's Manual

5.18

Target Alarm

The target alarm looks for targets
(ship, landmass, etc.) in the area
you set. Audiovisual alarms are
released when a target enters (or
exits) the alarm area.
5.18.1

How to set a target alarm zone

The following procedure shows you how to set a target alarm zone.
1. Press the ALARM key to activate ALARM 1 or ALARM 2. Press the ALARM key
to change the active ALARM between No. 1 and No. 2. The indication of the cur-
rently active ALARM is in a rectangle at the upper-right corner of the screen.
2. Use the Cursorpad to move the cursor to the position A and press the ENTER key.
3. Move the cursor to the position B and press the ENTER key. The rectangle that
shows alarm status indication at the upper-right corner of the screen disappears.
Target alarm zone 1
(Length of dash
and interval for
alarm zone 2 are
longer than alarm
zone 1.)
Note 1: To set a 360-degree guard zone, set the position B in the same bearing as the
position A.
Note 2: When the target alarm zone is not within the range in use, the indication
"ALM1(or 2)_RNG" replaces "ALM1(or 2)_IN(or OUT)" in the alarm status area.
(When the target alarm zone is within the range of full off-centering, the indication
does not change.) Select a range which displays the target alarm zone.
A
How to set a target alarm zone
CAUTION CAUTION
Do not depend on the alarm as the
only means to detect possible
collision situations.
Adjust the sea clutter, rain clutter
and gain correctly so that the alarm
system does not miss target echoes.
A L M 1 _ I N
A L M 2 _ O U T
+
B
5. OPERATION
Alarm status
Cursor
5-21