Garmin gpsmap 278 Manuale Utente

1.  Highlight the 

Alarms tab on the Main Menu.

2.  Highlight the box next to the alarm you want to make 

persistent (for example, 

Next Turn). 

3.  Press 

ENTER to place a check mark in the Persist box. 

Next Turn—set an alarm to indicate the next turn in a route. 

Select 

Dist to specify a distance before you reach the next turn 

to sound the alarm. Select 

Time to specify a time before the turn 

for the alarm to go off. Select 

Auto for the unit to provide a Next 

Turn alarm at its discretion. 
Arrival—set an alarm to sound when you are a specified 

distance or time away from a destination waypoint. Select 

Auto 

for the unit to provide an arrival alarm at its discretion. 
Off Course—set an alarm to sound when off course. Select On, 

and then enter a distance.
Anchor Drag—set an alarm to sound when you exceed a 

specified drift distance. Select 

On, and then enter a distance.

Custom POI—set an alarm to sound when approaching a 

custom POI.

Clock—set an alarm based on the unit’s clock. Select On, and 

then enter a specific time that you want the alarm to sound. The 

GPSMAP 278 must be on for the clock alarm to work.
Ext. (External) Voltage—set an alarm to sound when the 

external voltage drops below a specified amount. Select 

On, and 

then enter a specific voltage. 
DGPS—set an alarm to sound when the GPSMAP 278 loses a 

differential fix.
Anchor Drag—sets an alarm to sound when you exceed a 

specified drift distance. Select 

On, and then enter a distance.

Accuracy—set an alarm to sound when GPS accuracy falls 

outside of the user-set value. Select 

On, and then specify a 

distance. 

Shallow Water/Deep Water—set an alarm to sound when you 

enter an area of water that is too shallow or deep. Select 

On and 

then specify a distance. You must be receiving sonar NMEA data 

for this function to work.
Water Temp—set 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—set an alarm to sound when you exceeded a specified 

drift distance. Select 

On and then enter a specific distance. 

Fish—set an alarm to sound when fish are detected with sonar.

Use the Calendar tab to plan trips, view sun and moon, and hunting 

and fishing information for the day. 

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.

The options menu is available in all three calendar views. Press 

MENU 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.

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