Humminbird 797c2 用户指南

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Drift Alarm 

Drift Alarm sounds when the boat has exceeded the

distance from the boat’s anchored position, based on the menu setting. Drift Alarm
allows you to set the size of a perimeter around the boat’s anchored position; if the
anchored boat drifts outside of that perimeter, the Drift Alarm will sound. 

To change the Drift Alarm setting:

1. Highlight Drift Alarm on the Alarms main menu.

2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Drift

Alarm setting. (Off, 25 to 3000 feet, 10 to 1000 meters [International
Models only], Default = Off)

Drift Alarm Perimeter