Setting Guard - JRC Radar 3000 Instruction Manual

③ Selects #2 EBL-SET, then press the JOYSTICK. The EBL2 appears high-
light on the upper right corner of the display.
④ Rotate the J-DIAL clockwise or counterclockwise to move the #2 EBL
on the center of the target. The actual target bearing appears on the cen-
ter top of the screen in selecting unit.
To turn off the #2 EBL, selects the FUNCTION-#2 EBL-OFF on the
menu sheet.

4.13 SETTING GUARD

The GUARD Zone may be zone completely surrounding the vessel or a partial
trapezoidal zone to monitor targets entering or departing the specified area.
The guard zone will sound audible and visual alerts to the operator. In the IN
mode, an alarm will sound if a target enters the area. The IN alarm is effective
for alerting the operator to targets approaching his vessel. In the OUT mode,
the alarm will sound if a target leaves the prescribed area. This type of alarm is
useful for monitoring as an anchor watch, or pair trawling.
① Press the GUARD key.
② Sets the cross mark to the start point using the JOYSTICK and press the
JOYSTICK.
③ To determine the Guard Zone width, set the cross cursor using the JOY-
STICK and press the JOYSTICK.
④ To determine the bearing limits of the Guard Zone, set the cross cursor
using the JOYSTICK and press the JOYSTICK. We now have a sector zone
which alarm if any target enters the zone with the guard zone alarm indica-
tor "GUARD I 4" which indicates IN alarm mode is in operation and the
alarm target sensitivity is set at 4.
⑤ Press the GUARD key again and the symbol will change to "GUARD O 4"
indicating that the OUT alarm will sound for targets leaving the guard zone.
⑥ Pressing the GUARD key again will turn off the Guard Zone.
To memorize an alarm zone, press and hold the GUARD key until the dis-
play beeps and the alarm character "GUARD I" turn into highlight at IN
mode alarm. At this time the zone will have been memorized for use at any
time.
26 OPERATION