Nav (Navigation) Alarms; Sonar Alarms - Garmin GPSMAP 3005C Owner's Manual

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Nav (Navigation) Alarms

Use the Nav sub tab to set navigational alarms, including anchor drag, arrival, and
off course.
• Anchor Drag—sets an alarm to sound when a specified drift distance is
exceeded. Enter a value in the distance field, and use the control field to
turn the alarm on and off.
• Arrival—sets an alarm to sound when you are a specified distance or time
away from a destination waypoint. Enter a distance, radius, or time for
sounding the alarm, and use the control field to set the alarm to Off, Dist
(distance), or Time.
• Off Course—sets an alarm to sound when you are off course by a specific
distance. Enter a distance in the distance field, and use the control field to
turn the alarm on and off.
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Sonar Alarms*

Use the Sonar sub tab to set sonar alarms, including shallow or deep water,
water temperature, and fish.
• Shallow Water/Deep Water—sets an alarm to sound when you enter
an area of specified depth that is too shallow or too deep. You must be
receiving sonar data for this function to work.
• Water Temperature—sets an alarm to sound when the transducer reports
a temperature either above, below, inside, or outside the specified values.
• Fish—sets an alarm to sound when the unit detects a fish of the specified
symbols.
*You must be receiving NMEA sonar data or using a GSD 20, GSD 21 or GSD 22 for the
sonar alarms to function.
GPSMAP 3005C Owner's Manual