Humminbird 128 manual Depth Alarm, Fish Alarm

Depth Alarm

The Wide 128 contains an audible alarm to warn you of shallow water depths. The alarm is adjustable from 2' to 99' of depth. When the alarm is enabled, an audible alarm is sounded if the water beneath the boat is equal

to or less than the selected alarm depth. Upon activation, the alarm sounds continuously for about 5 seconds, and then intermittently to remind you that you are still in shallow water.

To enable Depth Alarm, press MENU repeatedly until the Depth Alarm menu is on-screen. The Factory Setting is "Off". Use the DOWN ARROW to highlight On. The menu will expand to show the current Depth Alarm setting. Use the UP or DOWN ARROW to set the desired depth for alarm activation.

Once the menu times out, the Depth Alarm is enabled. To further adjust the setting, simply press the UP or DOWN ARROW. The menu appears briefly to indicate the setting. If the alarm is sounding and you want to disable it, use the MENU button to bring the Depth Alarm menu on-screen, and the UP ARROW to highlight "Off".

Fish Alarm

The Fish Alarm alerts you to the presence of fish, or other targets not connected to the bottom. The Fish Alarm has 3 different settings which correspond to the 3 different size fish symbols shown on-screen.

To enable Fish Alarm, press the MENU button repeatedly until the Fish Alarm menu appears on-screen. The menu shows two options, "Off" (Factory Setting) and "On". Use the DOWN ARROW to highlight "On" and the menu further expands to show the 3 alarm options. The selected setting will be "Large fish only". With this setting, the Wide 128 alarms on only those targets which are represented by the large fish symbols (see Interpreting the On-Screen Information). Pressing the DOWN ARROW again highlights "large and medium fish" and pressing a third time highlights "large, medium, and small fish). With this setting, any fish symbol appearing on-screen activates the Fish Alarm.

Once the Fish Alarm is enabled, the Wide 128 emits an audible beep when the selected size fish symbol appears on-screen. The sound is slightly different for each of the three fish symbol sizes, so with practice, it is possible to distinguish the size of the detected fish without looking at the unit.

To disable the Fish Alarm, press MENU until the Fish Alarm menu appears on-screen. Use the UP ARROW to highlight "Off", and let the menu time out.