Arrival Alarm; Drift Alarm; Alarm Tone - Humminbird Matrix Series Sonar Fishfinder Model Matrix 87 Operation Manual

M87_Man_531352-1_A.qxd 12/9/2004

Arrival Alarm

Arrival Alarm sounds when the boat has either exceeded the
distance to the destination waypoint, or has entered the Arrival Alarm Circle, based on the menu
setting when navigating. Arrival Alarm allows you to set how close the boat must be to the
destination waypoint before the Arrival Alarm will sound.
To change the Arrival Alarm setting:
1. Highlight Arrival Alarm on the Alarms main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Arrival Alarm setting. (Off,
30 to 3000 feet, 10 to 1000 meters [International Models Only], Default = 150 ft, 50 m)

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.
Drift Alarm Circle
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, 30 to 3000 feet, 10 to 1000 meters [International Models Only], Default = Off)
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Alarm Tone

Alarm Tone selects the pitch of the alarm 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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