Garmin gpsmap 162 Manuale Utente

65

•    Heading— lets you select the reference used in calculating heading information. You can select 

from ‘Auto Mag Var’, ‘True’, ‘Grid’ and ‘User Mag Var’. ‘Auto Mag Var’ provides magnetic 
north heading references which are automatically determined from your current position. ‘True’ 
provides headings based upon a true north reference. ‘Grid’ provides headings based on a grid 
north reference (and is used in conjunction with the grid position formats described on page 
64). ‘User Mag Var’ allows you to specify the magnetic variation at your current position and 
provides magnetic north heading references based upon the variation you enter.

1.   With the “Heading” fi eld set to ‘User Mag Var’, highlight the heading reference fi eld (immediately 

to the right) and press ENTER/MARK. 

2.   Use the ARROW KEYPAD to enter the magnetic variation at your current position and press 

ENTER/MARK.

WARNING: If ‘User Mag Var’ is selected, you must periodically update the magnetic 
variation as your position changes. Using this setting, the unit will not automatically 
calculate and update the magnetic variation at your present position. Failure to update 
this setting may result in substantial differences between the information displayed on 
your unit and external references, such as a magnetic compass. 

 

•    Distance, Speed and Elevation— lets you select the desired units of measure for distance, 

speed and elevation readouts in ‘Nautical’ (nm, kt, ft), ‘Statute’ (mi, mh, ft)  or ‘Metric’ (km, 
kh, mt) terms.

•    Depth— lets you select the desired units of measure for depth in Feet (ft), Fathoms (fa) or 

Meters (mt).

•    Temperature— lets you select the desired units of measure for temperature in Fahrenheit (°F) 

or Celsius (°C).

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