Garmin GPSMAP 420, Owner'S Manual

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GPSMAP 400/500 Series Owner’s Manual iii
Introduction
Configuring the Chartplotter ............................................ 37
Configuring System Settings ...................................................... 37
Configuring Units of Measure .................................................... 37
Changing the System Language ................................................ 38
Configuring Navigation Preferences .......................................... 38
Configuring Communications Settings ....................................... 39
Setting Alarms ............................................................................ 40
Setting the Total Fuel Onboard Alarm ........................................ 41
Configuring My Boat .................................................................. 42
Configuring Other Vessels ......................................................... 43
Using Sonar ....................................................................... 44
Understanding the Full Screen .................................................. 44
Understanding the Split Frequency Screen ............................... 44
Understanding The Split Zoom Screen ...................................... 45
Understanding the Temp Log Screen ........................................ 45
Setting Up Sonar ........................................................................ 46
Advanced Sonar Settings .......................................................... 47
Digital Selective Calling (DSC) ......................................... 49
Using the Chartplotter with a VHF Radio ................................... 49
Adding a DSC Contact ............................................................... 50
Viewing the DSC List ................................................................. 50
Receiving Distress Calls ............................................................ 50
Man-Overboard Distress Calls Initiated from a VHF Radio ....... 51
Man-Overboard Distress Calls Initiated from the Chartplotter ... 51
Position Tracking ........................................................................ 51
Placing an Individual Routine Call ............................................. 52
Calling an AIS Target ................................................................. 53
Appendix ............................................................................ 54
Specifications ............................................................................. 54
Alarms and Messages ............................................................... 55
Capturing Screenshots .............................................................. 58
Caring for the Unit ...................................................................... 59
Software License Agreement ..................................................... 60
Index ................................................................................... 61