Garmin 3600a Instruccion De Instalación

Generally speaking, the default Map Datum and 

Location Format suit most users’ needs. 

A datum is a mathematical model of the Earth that 

approximates the shape of the Earth and enables 

calculations to be carried out in a consistent and 

accurate manner. The datum is physically represented 

by a framework of ground monuments (such as 

trig. stations) whose positions have been accurately 

measured and calculated on this reference surface. 

Lines of latitude and longitude on a map or chart are 

referenced to a specific map datum. 
Find the map datum reference on the paper chart you 

are using. Set the Map Datum to match the map 

datum used by your chart.

Your current location can be viewed on the GPS in the 

form of coordinates. Since different maps and charts 

use different location formats, Garmin GPS units 

allow you to choose the correct coordinate system 

for the type of map you are using. The most common 

format is latitude and longitude, which is utilized by 

all Garmin units. 
You may change the location format to use with 

other coordinate systems in Location Preferences. 

UTM/UPS (Universal Transverse Mercator/Universal 

Polar Stereographic) are easy-to-use metric grids that 

are found on most USGS topographic quadrangle 

maps. You can select several other grids, including a 

user-definable grid (for the advanced user). 

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