Furuno CSH-5 MARK-2 Operator's Manual page 45

5. Detecting Fish Echoes in Specific Area (Fish
Alarm)
The fish alarm alerts you to fish echoes in an area you select. Any
fish echoes entering the area will trigger the audio alarm. The fish
echo level which triggers the alarm may be selected from the scan
menu.
1. Press the [MENU] key to open the SCAN menu.
2. On the scan menu, use the RANGE control to select RANGE/
BEARING.
3. Use the GAIN control to select FISH/ALM.
4. Use the RANGE control to select FISH ALARM.
5. Use the GAIN control to select ON.
6. Press the [MENU] key to close the menu.
7. Use the trackball to place the trackball mark on the starting bear-
ing and press the [R/B] key.
8. Use the trackball to place the trackball mark on the ending bear-
ing and press the [R/B] key.
Starting point
Ending point
To disable the fish alarm, press the [R/B] key.
Note: The starting point may be selected at the outside or inside of
the alarm zone. You may also set a 360-degree alarm by set-
ting the starting and ending points within three degrees of each
other as in (c) and (d) in the figure below.
More than 3
(a)
39
Alarm area
Within 3
(b) (c) (d)