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What is the stellite dat a that I need to download Do I need to download ofen If I download I can <br />
use gps more quick or not
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What is the stellite dat a that I need to download Do I need to download ofen If I download I can 
use gps more quick or not

satellite data on your device has expired  Quick GPS

The Global Positioning System (GPS) is a space-based global navigation satellite system (GNSS) that provides reliable location and time information in all weather and at all times and anywhere on or near the Earth when and where there is an unobstructed line of sight to four or more GPS satellites. A geographic information system (GIS) or geospatial information system is any system that captures, stores, analyzes, manages, and presents data that are linked to location(s). In the simplest terms, GIS is the merging of cartography, statistical analysis, and database technology.