68 
(d) Operate [TRACK BALL] to set the range outside the guard zone and the starting angle of 
the guard zone, and then press the [JOG DIAL] or [ACQ/ENT] key. 
(e) Operate [TRACK BALL] to set the ending angle of the guard zone, and then press the 
[JOG DIAL] or [ACQ/ENT] key to determine the setting. 
ALARM MODE IN
ALARM LEVEL 8
SETTING
GUARD ZONE
 
 
 
Caution 
 
●
●●
●  Radar guard zone modes 
  There are two guard zone modes (invade and leave) - the invade mode issues an 
alarm when a ship or target gets into the specified guard zone, and the leave 
mode issues an alarm when a ship or target gets out of the specified guard zone. 
  Note that the range specified as the radar guard zone is displayed only when the 
radar is in transmitting state.  It is not displayed when the radar is in standby 
state. 
4.  Setting a radar guard zone [ALARM ACK] 
Take the following steps to set the mode that issues an alarm when a target gets into the 
specified radar guard zone or when a target gets out of the specified radar guard zone: 
(a)  Hold down the [ALARM ACK] key to display the    ALARM    menu. 
(b)  Select  ALARM ,  GUARD ZONE , and then  ALARM MODE  pressing the [JOG 
DIAL] or [ACQ/ENT] key after each selection. 
(c)  The menu below is displayed.  Turn [JOG DIAL] to select    IN   or   OUT , and then press 
the [JOG DIAL] or [ACQ/ENT] key to determine the selection. 
ALARM MODE IN
IN 8
OUT
GUARD ZONE
 
5.  Setting a radar guard zone detection level [ALARM ACK] 
Take the following steps to set the detection level of a guard zone: 
(a)  Hold down the [ALARM ACK] key to display the    ALARM    menu. 
(b)  Select  ALARM ,  GUARD ZONE , and then  ALARM LEVEL  pressing the [JOG 
DIAL] or [ACQ/ENT] key after each selection. 
(c)  The menu below is displayed.  Turn [JOG DIAL] to set an alarm level 0 to 15, and then 
press the [JOG DIAL] or [ACQ/ENT] key to determine the setting. 
ALARM MODE IN
ALARM LEVEL 8
8
GUARD ZONE