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6.2.11. GPS COORDINATES

With your ViaMichelin portable GPS device, you can specify an address with its geographical coordinates: specify

the latitude and the longitude to designate the desired location.

Fig. 20 - Latitude

• Type the numbers for the latitude (N / S) expressed in degrees, minutes and hundreds of minutes, and

specify the direction by selecting N (North) or S (South).

• Click on “OK” to confirm your entry or on “Back” to return to the previous screen.

• Type the numbers for the longitude (E / W) expressed in degrees, minutes and hundreds of minutes,

and specify the direction by selecting E (East) or W (West).

• Click on “OK” to confirm your input or on “Back” to return to the previous screen.

• If the “The place selected must be less than 25 km from a road.” message appears, click on “OK”

to return to the latitude and longitude input screen.

• Click on “OK” to start calculation of the route.

• Click on one of the buttons on the right to modify a criterion or on “Add stage” to add one or more

route points to the itinerary that is to be calculated.

• The Navigation screen appears at the end of the itinerary calculation. Start driving. The voice guidance

gives you the directions to take to arrive at your destination.

For the experts:

For increased precision in positioning, the coordinates used by

ViaMichelin are expressed in degrees, minutes and hundreds of minutes.

Geographical coordinates are, however, often given in sexagesimal

degrees, that is, degrees, minutes and seconds. It may also be necessary

to convert sexagesimal degrees into decimal degrees.

Conversion rule:

Decimal degrees = sexagesimal degrees + (minutes / 60) + (seconds /

3600)

Example :

Either a latitude of 48° 53' 36" (48 degrees, 53 minutes and 36

seconds). Expressed in decimal degrees, the latitude will be equal to:

48 + (53 / 60) + (36 / 3600) = 48 + 0,883333 + 0,01 = 48,893333 = 48

degrees and 89.3333 hundredths of minutes

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Michelin Navigation Manual do Utilizador Página 12