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Alarms The sonar unit has two different types of alarms, fish and depth.
Fish Alarm
The Fish Alarm sounds a tone when a fish symbol appears on the
screen. The default setting is on, but the Fish I.D. feature must be
turned on for fish alarms to work.
To turn Fish I.D. on, press MENU until the FISH ID menu appears. Press
UP ARROW to select ON, then press PWR.
To turn off the fish alarm without turning off fish symbols, press MENU
DOWN until FISH ALARM appears. Press DOWN ARROW to select OFF, then
press PWR to clear the menu. Repeat the above steps to turn the alarm
back on, but press UP ARROW to select ON before clearing the menu.
Fish Alarm menu.
Depth Alarms
The depth alarms are triggered only by the bottom signal. No other
echoes will activate these alarms. The depth alarms consist of a shal-
low and a deep alarm. The shallow alarm sounds an alarm tone when
the bottom goes shallower than the alarm's setting. The deep alarm
sounds a tone when the bottom goes deeper than its setting. Both
alarms adjust the same way, although through different menus.