Operator`s manual

Radar menu Chapter 3-15
after-glow or wake behind the moving targets or own ship.
If the range scale is changed, the trails are cleared and new trails will
be drawn on the screen. The trails are drawn for anything that moves
on the screen, including sea gulls, sea clutter, buoys, and shoreline.
Own trail – toggle between OFF and ON. This function will require
that ‘Trails’ (above) is activated and mode of orientation is TM.
RR = RangeRings – toggle between # *.** (as display example), *.**
(no RR figures), OFF (no RR)
GZ (Guard Zone alarm)
– The use of the Guard zone feature built
into the radar can detect approaching vessels entering your guard
zone. You can use the guard zone while you are moving or when
anchored to protect you in a full 360 degrees. The audio alarm can be
sounded from the unit or through an external speaker/buzzer wired
into the system – see Electrical connections in Installation manual.
 In Head Up mode the GZ relates to the vessel and in North Up or
Course Up it relates to geographic north.
Define the guard zone by means of the EBL and VRM markers:
1. Press the [EBL] key and move cursor (EBL-VRM1) to make the
left side and top of the guard zone.
2. Press [ENT], [2] and move cursor (EBL-VRM2) to make the right
side and bottom of the guard zone. The guard zone will be gener-
ated clockwise from EBL1 to EBL2.
3. Press [ADJ] and move cursor to the GZ line. Use the [+] key to
toggle between: IN / OUT / OFF.
IN = the alarm will be activated if any target enters the defined
guard zone.
OUT = the alarm will be activated when all targets have left the
defined guard zone i.e. at least one target must be present inside
the GZ when the function is activated.
4. Press [ENT] to exit the control panel.
5. Press and hold [CLR] to clear the EBL-VRMs. This will give a
better view of the defined guard zone.