Furuno FMD-3200 Operator's Manual page 124

8. CHART ALERTS
2. Set the ahead time or distance and ahead width, referring to the figure below. Al-
so, set the "Around" figures: port, starboard, bow and stern check distance. The
reference point is the conning position.
Bow
Stern
3. To select the objects to use in chart alerts, click the [Chart Alert] button and see
section 8.1.2.
4. To show or hide the chart alert area figure, click the button ([ON] or [OFF]) to the
right of the [Chart Alert] button at the bottom of the [Check Area] page.
When an object having a Warning setting enters the Check Area, the object is high-
lighted in red and the aural alarm sounds.
Highlight (red)
8-4
Width
Ahead
Port Starboard
Distance
Object selected
for Chart Alert
Chart alert area