Furuno FSV-84 manual How to set the fish alarm zone, How to create desired alarm zone

2. HORIZONTAL MODE

<<ALARM ZONE SETTING>>

PLACE CURSOR AT STARTING POINT

AND PRESS MENU KEY TO SET.

PRESS R/B KEY TO CANCEL.

<<ALARM ZONE SETTING>>

PLACE CURSOR AT ENDING POINT

AND PRESS MENU KEY TO

COMPLETE ALARM ZONE SETTING.

How to set the fish alarm zone

Note 1: There must be at least three degrees difference between the starting and ending points to get a fan-shaped alarm zone as shown in (a) and (b) below. Otherwise, the unit paints a 360-degree alarm zone as in (c) where there is less than 3 degrees between the starting and ending points and (d) where the bearing marker has been rotated one full turn.

More than 3˚ Within 3˚

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

How to create desired alarm zone

Note 2: The echo strength which triggers the alarm can be set with ALARM LEVEL on the ALARM & AUDIO menu. The setting range is 0-30.

This value corresponds with the number of 32-echo colors.

Note 3: To disable the fish alarm, choose OFF at step 5 in the procedure on the previous page.

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