Advent NAV102 - GPS Navigation System Add-On Manuale del Proprietario Scaricare il pdf (Pagina 39)

Introduction

GPS

Navigation

The NAV102 is a vehicle GPS (Global Positioning System)-based navigation device

which utilizes digital map data to guide you from your selected location A

location

using location information obtained from a Global Navigation Satellite System (GNSS).

A GNSS consists of a set

satellites that transmit high-frequency radio signals

containing time, direction, and distance data that can be picked up by a receiver, allowing

users to pinpoint their precise locations anywhere around the globe. Navigation Satellite

Receivers (GPS devices) use this transmitted information to calculate an exact location

on the earth.

Every point on Earth can

identified by latitude and longitude. The receiver uses the

information sent by at least three satellites and determines the coordinates of the

receiving device.

By comparing the time the signals were transmitted from the satellites and the time they

were recorded, the receiver calculates how far away each satellite

is.

The distance

the

receiver from three or more satellites reflects its position on the surface

the planet.

Using these distance measurements, the receiver might also be able to calculate speed,

bearing, trip time, distance to destination, altitude, etc. The GPS position may be

displayed as a point

a digital map (at least three satellites' signals must be received)

and as the GPS device moves, the corresponding trace is also displayed.

Please keep

mind that although the radio signals

navigation satellites will pass

through clouds, glass, plastic, and other lightweight materials, satellite-navigation

receivers will not work underground or

some enclosed spaces.

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Advent NAV102 - GPS Navigation System Add-On Manuale del Proprietario Pagina 39