Drift Alarm; Alarm Tone - Humminbird 917C Installation And Operation Manual

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

Drift Alarm sounds when the boat has
Drift Alarm Circle
sound. A brief tone will be produced as you adjust the Alarm Tone so that
you can select the tone that you can hear best.
To change the Alarm Tone setting:
1. Highlight Alarm Tone on the Alarms main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Alarm Tone setting. (High, Medium, Low, Default = Medium)
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Alarm Tone

Alarm Tone selects the pitch of the alarm