Garmin 378 Manuale Proprietario

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Flash Flood Warnings—sets an alarm to sound when you enter an 
area where a flash flood warning is in effect.
Marine Warnings—sets an alarm to sound when you enter an area 
where a marine warning is in effect.
Sonar Alarms
The Sonar sub tab contains the following alarms:
Shallow Water/Deep Water—sets an alarm to sound when you 
enter an area of water that is too shallow or deep. Select On and 
then enter a specific distance. You must be receiving sonar NMEA 
data for this function to work.
Water Temp—sets an alarm to indicate if the water temperature has 
exceeded or dropped below a specific temperature, or fallen outside/
inside a specific temperature range. Select 
Above or Below and then 
enter a specific temperature, or select Inside or Outside and enter a 
range of temperatures. You must be receiving sonar NMEA data for 
this function to work.
Drift—sets an alarm to sound when you exceeded a specified drift 
distance. Select On and then enter a specific distance. 
Fish—sets an alarm to sound when fish are detected with sonar.
Calendar Tab
Use the Calendar tab to plan trips, view sun and moon, and hunting 
and fishing information for the day. 
Calendar Tab in Day View
Highlight an arrow and press 
ENTER to change the date in the view.
Sunrise and set 
times for the 
current location 
and date. 
List of points 
and routes 
added to this 
date.
Calendar Options
The options menu is available in all three calendar views. Press 
MENU on any of the calendar views to open the options menu. To 
view the Sun & Moon Information or Hunt & Fish sub tab, highlight 
View Sun and Moon or View Hunt and Fish and press ENTER.
To add a route (or point) to the calendar:
1.  Press 
MENU twice to open the Main Menu. 
2.  Highlight the 
Calendar tab. The current day appears on the 
Day View sub tab.
GPSMAP 378/478 Owner’s Manual 
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