GPSMAP 400/500 Series Owner’s Manual iiiIntroductionViewing Celestial Information ..................................................... 43Viewing User Data ..................................................................... 44Viewing Other Vessels ............................................................... 47Configuring the Chartplotter ............................................48Configuring System Settings...................................................... 48Configuring Units of Measure .................................................... 48Changing the System Language................................................ 49Configuring Navigation Preferences .......................................... 49Configuring Communications Settings ....................................... 51Setting Alarms ............................................................................ 52Setting the Total Fuel Onboard Alarm ........................................ 54Configuring My Boat .................................................................. 54Configuring Other Vessels ......................................................... 56Using Sonar .......................................................................57Understanding the Full Screen .................................................. 57Understanding the Flasher Screen ............................................ 57Understanding the Split Frequency Screen ............................... 58Understanding the Split Zoom Screen ....................................... 58Understanding the Depth Log Screen........................................ 59Understanding the Temp Log Screen ........................................ 59Setting Up Sonar........................................................................ 60Advanced Sonar Settings .......................................................... 61Using Digital Selective Calling (DSC) ..............................63Using the Chartplotter with a VHF Radio ................................... 63Adding a DSC Contact ............................................................... 64Viewing the DSC List ................................................................. 64Receiving Distress Calls ............................................................ 64Man-Overboard Distress Calls Initiated from a VHF Radio ....... 65Man-Overboard Distress Calls Initiated from the Chartplotter ... 65Position Tracking........................................................................ 65Placing an Individual Routine Call ............................................. 66Calling an AIS Target ................................................................. 67Using XM WX Weather and Audio ....................................68Using XM WX Weather .............................................................. 68Viewing NEXRAD Precipitation Information ............................... 69Viewing Forecast Information .................................................... 72Viewing Fishing Information ....................................................... 73Viewing Sea Conditions ............................................................. 74Viewing Visibility Information...................................................... 75Using XM Audio ......................................................................... 76Appendix ............................................................................77Specifications ............................................................................. 77Alarms and Messages ............................................................... 79Capturing Screenshots .............................................................. 82Caring for the Unit ...................................................................... 82Weather Data Warranty ............................................................. 83Software License Agreement ..................................................... 84XM Satellite Radio Service Agreement ...................................... 84Index ...................................................................................85