Garmin 300 Manuel Du Propriétaire

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The Position Format Setup page allows you to set your 

position format, map datum, and map spheroid. Use the 

default settings unless you are using a map or chart that 

specifies a different position format. 
To access the Position Format Setup page select 

 > 

 > 

.

To access the Heading Setup page select 

 > 

 > 

.

  NOTE: Unless you have a working knowledge of 

headings and North referencing, it is recommended 

that you use the default settings.

Display—sets the units (Cardinal Letters, Degrees, or 

Mils) used to show your heading.
North Reference—provides headings based on a true, 

magnetic, grid, or specific user value north reference.
Compass—select 

 to automatically 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. Select 

 to turn the electronic compass off and 

use the GPS compass.

The Altimeter Setup page allows you to set up the 

altimeter to self-calibrate each time you turn the 

Colorado on, to function as a barometer, and to 

continually save pressure trend data.
To set up the altimeter select 

 > 

 > 

.

Auto Calibration—when turned on, elevation is 

calibrated by the GPS elevation on the Colorado. 
Barometer Mode—select 

 

(used when moving) or 

 (used when 

stationary, allowing the Altimeter to function as a 

standard barometer). 
Pressure Trending—select 

 to record 

pressure data every 15 minutes, even when the 

Colorado is turned off. Select 

 

to record data only when the Colorado is turned on.