Sonar AlarmsShallow Water/Deep Water—sets an alarm to sound when youenter an area of water that is too shallow or deep. Select On, andthen specify a depth. You must be receiving sonar NMEA data forthis function to work.Water Temp—sets an alarm to indicate if the water temperature hasexceeded or dropped below a specific temperature, or fallen outside/inside a specific temperature range. Select Above or Below and thenenter a specific temperature, or select Inside or Outside and enter arange of temperatures. You must be receiving sonar NMEA data forthis function to work.Drift—sets an alarm to sound when you exceed a specified driftdistance. Select On, and then enter a specific distance.Fish—sets an alarm to sound when fish are detected with sonar.Calendar TabUse the Calendar tab to plan trips, view sun and moon, and huntingand fishing information for the day.Calendar Tab in Day ViewHighlight an arrow and press ENTER to change the date in the view.Sunrse andsunset tmesfor the currentlocaton anddate.List of pointsand routesadded to thsdate.Calendar OptionsThe options menu is available in all three calendar views. PressMENU on any of the calendar views to open the options menu.To view the Sun & Moon Information tab or Hunt & Fish sub tab,highlight View Sun and Moon or View Hunt and Fish, and pressENTER.78 GPSMAP 378/478 Owner’s ManualMAIn Menu > cAlendAr tAb
