GPS navigation device
From Wikipedia, the free encyclopedia
A GPS navigation device is any device that receives Global Positioning System (GPS) signals for the purpose of determining the present location. These devices are used in military, aviation, marine and consumer product applications.
Global Positioning System
From Wikipedia, the free encyclopedia
"GPS" redirects here. For other similar systems, see Global Navigation Satellite System. For other uses of "GPS", see GPS (disambiguation).For a generally accessible and less technical introduction to the topic, see Introduction to the Global Positioning System.Artist's conception of GPS Block II-F satellite in orbit Civilian GPS receiver ("GPS navigation device") in a marine application. Automotive navigation system in a taxicab. GPS receivers are now integrated in many mobile phones. The Global Positioning System (GPS) is a global navigation satellite system (GNSS) developed by the United States Department of Defense and managed by the United States Air Force 50th Space Wing. It is the only fully functional GNSS in the world, can be used freely by anyone, anywhere, and is often used by civilians for navigation purposes. It uses a constellation of between 24 and 32 medium Earth orbit satellites that transmit precise radiowave signals, which allow GPS receivers to determine their current location, the time, and their velocity. Its official name is NAVSTAR GPS. Although NAVSTAR is not an acronym, a few backronyms have been created for it.[2]Since it became fully operational on April 27, 1995, GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses, tracking and surveillance, and hobbies such as geocaching. Also, the precise time reference is used in many applications including the scientific study of earthquakes and as a required time synchronization method for cellular network protocols such as the IS-95 standard for CDMA.
Global navigation satellite system
From Wikipedia, the free encyclopedia
Global Navigation Satellite Systems (GNSS) is the standard generic term for satellite navigation systems that provide autonomous geo-spatial positioning with global coverage. GNSS allows small electronic receivers to determine their location (longitude, latitude, and altitude) to within a few metres using time signals transmitted along a line-of-sight by radio from satellites. Receivers on the ground with a fixed position can also be used to calculate the precise time as a reference for scientific experiments.As of 2009[update], the United States NAVSTAR Global Positioning System (GPS) is the only fully operational GNSS. The Russian GLONASS is a GNSS in the process of being restored to full operation. China has indicated it will expand its regional Beidou navigation system into the global COMPASS navigation system by 2015. The European Union's Galileo positioning system is a GNSS in initial deployment phase, scheduled to be operational in 2013.The global coverage is achieved by constellations of about 30 MEO satellites in different orbital planes. The actual systems use orbit inclinations of >50? and orbital periods of 12 hours (height 20.200 km).
List of Garmin products
Garmin is a company that produces consumer, professional aviation, and marine devices that make use of the Global Positioning System for navigational assistance. Devices such as hand-held GPS units, in-vehicle units are common. The following is list of current and discontinued products produced by Garmin Ltd.
Nüvi Series Current Models
Nüvi 200, Nüvi 200W, Nüvi 205, Nüvi 205W, Nüvi 250, Nüvi 250W, Nüvi 255, Nüvi 255W,
Nüvi 260, Nüvi 260W, Nüvi 265T, Nüvi 265W, Nüvi 265WT, Nüvi 270, Nüvi 275T,
Nüvi 300, Nüvi 310, Nüvi 350, Nüvi 360, Nüvi 370,
Nüvi 500, Nüvi 550,
Nüvi 600, Nüvi 610, Nüvi 650, Nüvi 660, Nüvi 670, Nüvi 680,
Nüvi 710, Nüvi 750, Nüvi 755T, Nüvi 760, Nüvi 765T, Nüvi 770, Nüvi 775T, Nüvi 780,
Nüvi 785T, Nüvi 850, Nüvi 860, Nüvi 880,
Nüvi 900T,
Nüvi 5000
Product Description Amazon.com Product DescriptionWhat if one device could help you navigate anywhere in the U.S. and Canada, while offering travel tips, storing your favorite tunes and photos, providing translation assistance, and more? That device is here, and it's not much bigger than a deck of cards. The Garmin nuvi 350 is set to revolutionize what we expect from a GPS navigation device, or from any device for that matter. Which n?vi is Best for You?:
Click here to see a quick, simple comparison of features for all
Garmin nuvi GPS navigators 
Design With a total weight of 5.1 ounces and slim measurements of 3.87 x 2.91 x 0.87 inches (WxHxD), the nuvi 350 is just right for the pocket or purse. A bright, 64,000-color display dominates the front of the device and a resolution of 320 x 240 pixels means that there's plenty of room for displaying map data and other elements of the device's interface. An SD memory card slot is provided for expansion software, such as a points of interest database, media files and electronic guides (see below). The flip-up antenna includes an MCX-type connector for connecting the unit to an external GPS antenna. Meanwhile, a powerful built-in speaker resides on the back of device. A built-in lithium ion battery will give you for to eight hours of battery life, depending on use. In addition to an AC charger, the unit also ships with a 12-volt power adapter for vehicle charging, as well as a windshield suction cup mount. Fortunately, Garmin has made it easy to interface with the nuvi 350's 700 megabytes of onboard memory, thanks to "plug-and-play" USB mass storage support. Just plug the device into your computer's USB port and you've got instantaneous access to all the audio books, music, photos, supplemental maps and other data on the nuvi 350's internal and SD card memory.
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Navigation The nuvi 350 is first and foremost a personal GPS device. Wherever you go -- in your car or on foot-- the device offers extremely accurate position data, thanks to a high-sensitivity integrated GPS receiver by SiRF and WAAS-enabled, 12-satellite reception. Combined with detailed maps of the U.S., Canada and Puerto Rico the nuvi 350 provides automatic routing, turn-by-turn voice directions, and touchscreen control-- making it easy to find your way anywhere. Plus, the unique "text-to-speech" feature calls out turns by street name, and you can choose from either 2D or 3D mapping perspectives when you're viewing your route on the display. Additionally, the nuvi 350 is compatible with Garmin's GTM 10 FM TMC traffic receiver*, which allows users to avoid traffic tie-ups by simply pushing a button that will calculate a new route.As mentioned, the nuvi 350 comes packed with mapping data for North America, but you can can also load up your custom points of interest. Set up proximity alerts for school zones, safety cameras, and more using Garmin's free POI (points of interest) loader program (available from garmin.com).Important note about map updates: Due to our high volume of sales, almost every Garmin portable GPS navigator sold by Amazon.com will come with the most recent map version. If you ever do need a map update, you can purchase one from Amazon.com at our Garmin Store.
