Garmin GPSMAP 620 Owner's Manual - Page 41
Configuring My Boat, My Boat
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• Type-set the alarm to sound either at the Destination Only or at the Destination and Turns (when navigating a route with turns). • Activation-set the criteria for the alarm. The Distance setting sounds the alarm when you are a specified distance from the point. The Time setting sounds the alarm when you are a specified time from the point. • Change Distance/Change Time-specify the distance or time from the point at which the alarm will sound. Anchor Drag-set an alarm to sound when you drift a specified distance from your current location. Off Course-set an alarm to sound when you steer a specified distance from your current course. Setting System Alarms From the Home screen, touch Configure > Alarms > System. Clock-set an alarm using the system (GPS) clock. The unit must be on for the clock alarm to work. GPS Accuracy-set an alarm to sound when the GPS location accuracy falls outside the specified value. Marine Mode: Advanced Configuration Setting Sonar Alarms From the Home screen, touch Configure > Alarms > Sonar. Note: You must connect an optional sonar module and a transducer using NMEA 0183 to receive sonar information. Shallow Water/Deep Water-set an alarm to sound when the depth is less than or greater than the specified value. Water Temp-set an alarm to sound when the transducer reports a temperature that is 2°F (1.1°C) above or below the specified temperature. Configuring My Boat From the Home screen, touch Configure > My Boat. Auto Guidance-select the Auto Guidance parameters for your boat. • Safe Depth-set the minimum depth (using chart depth datum) to allow when calculating an auto-guidance path. A safe depth of less than one meter is not allowed when using Auto Guidance. • Safe Height-set the minimum height (using chart height datum) of a bridge that your boat can safely travel under. GPSMAP 620 Owner's Manual 35