Furuno CSH-23F/24F Manual de usuario descargar pdf (Pagina 64)

7-8

The Fish Alarm

The fish alarm sounds an audible alarm when a fish echo above

a preset strength enters an alarm zone. You set parameters for

the fish alarm at ALM on the data setting window.

ON/OFF: Turn alarm on or off.

Level: Set echo strength level which will activate the alarm.

Zone: Set alarm zone.

1. Open the data setting window and select ALM•AUDIO.

2. Press the + key of the ZONE item.

3. Operate the trackball to place the trackball mark on the start-

ing point of the alarm zone.

4. Press the + key.

5. Rotate trackball clockwise to select the end point. The dis-

play paints a fan-shaped alarm zone.

6. Press the + key.

Starting

point

End

point

Alarm

zone

Figure 7-6 How to set the fish alarm zone

Note: There must be at least three degrees difference between

the starting and end points to get a fan-shaped alarm zone as

shown in (a) and (b). Otherwise, the unit paints a 360 degree

alarm zone as in (c) and (d).

More than 3°

Within 3°

(a) (b) (c) (d)

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Furuno CSH-23F/24F Manual de usuario Pagina 64