Garmin Edge 305HR Owner's Manual - Page 53
About GPS, Department of Defense. GPS - edge 305 how to work it
UPC - 689076732253
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Each GPS satellite in space has a specific number that identifies it. The numbers of several GPS satellites appear on the circular graphic in the middle of the page. The number corresponds to the current position of that satellite in space. Each highlighted number on the graphic corresponds to a satellite from which the Edge is currently receiving signals. The black bars under the graphic represent the strength of each satellite signal received (the number of the satellite appears below each bar). NAVIGATION About GPS The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the United States Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS. For more information, visit www.garmin.com/aboutGPS. Edge™ 205/305 Owner's Manual 53