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GPS Presentation

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Janelle Huebert

on 5 May 2010

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Transcript of GPS Presentation

hi Hey! What's up? Global Positioning Systems A global positioning system, or a GPS, helps you get to any location quick and easy A GPS works by getting signals and necessary information from satellites Along with signals, the GPS recieves important messages from the satellites Because of satellite information, not only can the GPS pinpoint it's own location, but locations all around the world. It is a navigational system that will work anywhere around the globe GPS There are about 30 GPS satellites orbiting the earth at this very moment. About 30 GPS satellites are orbiting the earth at this very moment A GPS Satellite These messages let the GPS know:
the time the signals were sent
orbital information; the location of all the other satellites in orbit
A GPS needs
to be connected
to at least four
satellites in order
to tell the time
and direction. These satellites are also known as Navstars A Global Positioning System works in all weather, all day and night It can tell the approximate latitude, longitude, and altitude. Was invented in the 1970's Most receivers can spot the location within about 10 meters Very accurate GPS's are able to find the location within one centimeter. These more accurate GPS's are used for people in the military, farmers, and other professionals. The GPS was originally used for the military, so the ones they use are very high tech as well as super expensive. Another well-known GPS brand is the Garmin Gps All GPS's, this one included, come with a screen to show you where to go. Some GPS's are used for mounting on the dash of your vehicle. Others are portable so you can use them while you do things such as walking a dog. There are exactly six different orbits of satellites. The price for the average GPS reciever ranges from $100 to $1000 Each satellite weighs approximately 4000 pounds!!! The GPS satellites use atomic clocks so they, and the GPS, can keep time. The GPS satellites were launched from the 1980's to 1990's, so they are pretty old. Because the satellites are so worn, they will need to be replaced soon. This will be a major project. The estimated cost for a project this big will be around $5.8 billion. That's a lot of cash! This GPS is portable. This gps is also a portable gps, only it is meant for mounting in your vehicle. Most GPS's have the option of changing the language. The previous GPS was set in Japanese. One of the more popular GPS brands is the Magellan GPS's.
The TomTom GPS's are also as well known. There are three main categories of portable gps's... 1. The basic GPS- Price: $100 to $200
2. The traffic optional GPS- Price: $150-$400 3. The Traffic ready GPS- (reports traffic) Price: $70-$200 You can also access a GPS through your cell phone for about $10 a month. Some other kinds include:

Built in system- GPS built into your car

GPS software- you load into your computer, more detailed maps THE END!!!! There are many different brands of global positioning systems... Almost all GPS's are easy to install... Most portable systems run on batteries, so it's convenient whenever you're on the go. So throw away your atlas and go buy a GPS. You will be able to actually get somewhere without getting lost, saving you scads of time! Fun Facts The average GPS size is 3-6 inches wide, 2-4 inches long Most of the GPS satellites are 12,500 miles above the earth.
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