Garmin gpsmap 78 Manuale Utente

Using the Main Pages

Grid—sets grid north as the 

heading reference (0°).
user—sets the magnetic 

variation value.

Go To Line/Pointer—allows 

you to select how the course is 

displayed. 

Bearing (Small/Large) indicates 

the direction to your destination.
Course indicates your 

relationship to a course line 

leading to a destination.

Compass—allows you to switch 

from an electronic compass to 

a GPS compass when you are 

traveling at a higher rate of speed 

for a set period of time, or turns the 

compass off.
Select To Begin—starts the 

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NOTE: The elevation plot page is 

available only with the GPSMAP 78S 

and GPSMAP 78Sc.

You can manually calibrate the 

barometric altimeter if you know 

the correct elevation or the correct 

pressure.
1.  From the elevation plot, press 

MENu. 

2.  Select Calibrate Altimeter.
3.  Follow the on-screen instructions.