Garmin GPSMAP 721xs Owner's Manual - Page 5

Configuring the Chartplotter 48 Viewing System Information 48 Configuring System Settings 48 Configuring Units of Measure 49 Changing the System Language 49 Configuring Navigation Preferences 50 Configuring Communications Settings 51 Setting Alarms 53 Setting the Total Fuel Onboard Alarm 54 Configuring My Boat 55 Configuring Other Vessels 56 Restoring the Original Factory Settings 56 Using Sonar 57 Understanding the Full Screen 57 Understanding the Split Frequency Screen 58 Understanding The Split Zoom Screen 58 Understanding the Depth Log Screen 59 Understanding the Temp Log Screen 59 Setting Up Sonar 60 Advanced Sonar Settings 61 Digital Selective Calling (DSC 62 Using the Chartplotter with a VHF Radio 62 Adding a DSC Contact 63 Viewing the DSC List 63 Receiving Distress Calls 63 Man-Overboard Distress Calls Initiated from a VHF Radio 64 GPSMAP 400/500 Series Owner's Manual Introduction Man-Overboard Distress Calls Initiated from the Chartplotter 64 Position Tracking 64 Placing an Individual Routine Call 65 Calling an AIS Target 66 Appendix 67 Specifications 67 Alarms and Messages 69 Capturing Screenshots 72 Caring for the Unit 72 Software License Agreement 73 Index 74 iii