Navigator Gps
Thursday, March 4th, 2010
A GPS System Will Take You Anywhere
The GPS (Global Positioning System) is a “constellation” of 24 well-spaced satellites that orbit the Earth and make it possible for people with ground receivers to pinpoint their geographic location. The location accuracy is anywhere from 1 to 100 meters depending on the type of equipment used. The GPS is owned and operated by the U.S. Department of Defense, but is available for general use around the world. Many people use it for many different reasons. Here are just a few of the more common ones.
Military
GPS allows accurate targeting of various military weapons including cruise missiles and precision-guided munitions, as well as improved command and control of forces through improved locational awareness. The satellites also carry nuclear detonation detectors, which form a major portion of the United States Nuclear Detonation Detection System. Civilian GPS receivers are required to have limits on the velocities and altitudes at which they will report coordinates; this is to prevent them from being used to create improvised missiles.
Navigation
GPS is used by people around the world as a navigation aid in cars, airplanes, and ships. Personal Navigation Devices (PND) such as hand-held GPS are used by mountain climbers and hikers. Glider pilots use the logged signal to verify their arrival at turn points in competitions. Low cost GPS receivers are often combined with PDAs, cell phones, car computers, or vehicle tracking systems. Examples of GPS-based services are MapQuest Mobile and TomTom digital maps. The system can be used to automate harvesters, mine trucks, and other vehicles. GPS equipment for the visually impaired is available.
Mobile Satellite Communications
Satellite communications systems permit “remotes” to communicate with “hubs” via satellites. A typical system uses satellites in geosynchronous orbit: this requires a directional antenna (usually a “dish”) that is pointed at the satellite. When the “remote” is portable, as on a ship or a train, the antenna must be pointed based on its current location. Essentially all modern antenna controllers incorporate a Gps Receiver to provide this location information.
The remote uses its location for two distinct purposes: first, to point the antenna at the satellite, and second, to compute the distance to the satellite. The distance to the satellite is crucial when deciding when to transmit a TDMA burst.
In this application, there are two distinct types of satellites and two distinct antennas: the GPS satellies are MEO and the GPS antenna is typically a 2cm sq. “patch antenna.” The communications satellites are GEO and the communications antenna is typically 1m or larger. To a first approximation, the GPS system is less than 1% of the total cost of the remote system.
Location-based services
GPS functionality can be used by emergency services and location-based services to locate mobile phones. Assisted GPS is a GPS technology often used by the mobile phone because it reduces the power requirements of the mobile phone and increases the accuracy of the location obtained.
Location-based games
GPS receivers come in a variety of formats, from devices integrated into cars, phones, and watches, to dedicated devices such those shown here from manufacturers Trimble, Garmin and Leica (respectively, left to right).The availability of hand-held GPS receivers for a cost of about $90.
About the Author
More information on gps systems
http://www.gpstechonline.com
Navigon 2100 GPS Navigator
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The Navigator with GPS Canvas Print / Canvas Art – Artist J W Baker This is a beautiful stretched-canvas art print wrapped on 2.5″ thick stretcher bars. The print is professionally printed, assembled, and shipped within 2 – 3 business days from our production facility in North Carolina and arrives ready-to-hang on your wall. Fine Art America is home to more than 35,000 artists from all over the world who entrust us to fulfill their print orders online. We offer a … |
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Pocket Gps Navigator Cfsftware Us Maps & Starcaddy Gold Us $279.95 Compatible with most Pocket PCs with a CompactFlash slot, the Pharos Pocket GPS Navigator with CompactFlash includes Pharos’ iGPS-360 convertible receiver with a CompactFlash adaptor. Use it directly connected to the CompactFlash Adaptor, or for added flexibility use the CF extension cable for placement and reception. There is no need for an external antenna! With Ostia, Pharos’ award-winning navi… |
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Garmin StreetPilot c510 c530 c550 c580 GPS Navigator Car Vehicle 12V Power Charger Cable Cigarette Lighter Adapter Comparable to Garmin 010-10747-03 $16.95 This Gilsson 12-volt GPS Cigarette Lighter Adapter Charger is specifically designed to power and charge Garmin’s Nuvi 600 610 650 660 670 680 710 750 755T 760 765T 770 775T 780 785T 850 860 880 StreetPilot C510 C530 C550 C580 and Zumo 400 450 500 and 550. It utilizes the special 18-pin Garmin connector to connect directly to the GPS or Garmin GPS Cradle, depending on the location of the connector … |
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Garmin Nuvi 710 750 755T 760 765T GPS Navigator Car Vehicle 12V Power Charger Cable Cigarette Lighter Adapter Comparable to Garmin 010-10747-03 $15.19 This Gilsson 12-volt GPS Cigarette Lighter Adapter Charger is specifically designed to power and charge Garmin’s Nuvi 600 610 650 660 670 680 710 750 755T 760 765T 770 775T 780 785T 850 860 880 StreetPilot c510 c530 c550 c580 and Zumo 400 450 500 and 550. It utilizes the special 18-pin Garmin connector to connect directly to the GPS or Garmin GPS Cradle, depending on the location of the connector … |
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ChargerCity OEM Vehicle Power Cable Car Charger Adapter for Garmin Nuvi 200 200W 205 205W 245 245w 250 250W 255 255w 255wt 260 260w 265 265w 265wt 270 270w 275 275w 275wt 285 285w 285wt GPS Navigator with Extended 9ft Coiled cord for Longer Reach & Easy Storage. Include Free Micro SD Card USB Reader/Writer & Manufacture direct replacement warranty $11.95 ChargerCity Vehicle Charger power cable for Garmin Nuvi 200 200W 205 205W 215 215T 245 250 255 260 265 270 275 285 GPS Navigator… |
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Garmin nüvi 255W 4.3-Inch Widescreen Portable GPS Navigator $219.99 Go wide and get peace of mind with nüvi 255W. This affordable, widescreen navigator leads the way with voice-prompted turn-by-turn directions that speak street names and optional MSN Direct® services to get you there on time and keep you informed. It’s packed with millions of destinations and maps for North America. Like the rest of the sleek nüvi 2×5-series, this portable navigator is priced r… |
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Garmin nüvi 255W 4.3-Inch Widescreen Portable GPS Navigator (Factory Refurbished) $299.99 Amazon.com Product Description This is a refurbished GPS. Refurbished generally means that the unit has been returned to the manufacturer, who brings the navigator back to like new conditions. Some GPS may contain cosmetic blemishes.Garmin’s nüvi 255W improvesupon its 200-series predecessors by adding top-of-the-line features such as FM traffic updates or MSN Direct content to an entry-level li… |
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Garmin nüvi 265W/265WT 4.3-Inch Widescreen Bluetooth Portable GPS Navigator with Traffic $219.99 … |
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Assorted Neoprene Sleeve Carrying Case for Garmin Nuvi 255W 500 550 900T $39.95 … |
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Garmin Nuvi 1200 3.5-inch Portable GPS Navigator $119.99 This ultra-thin GPS announces streets by name and calculates a more fuel-efficient route with ecoRoute. The Garmin navigator has a slim design that fits easily in your pocket. |
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Garmin Nuvi 255W 4.3-inch Widescreen Portable GPS Navigator $0 The Garmin nuvi navigation system will decrease satellite acquisition times. This GPS features more than six million points of interest (POIs). |
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Magellan RoadMate 1440 Portable GPS Navigator W/ Text to Speech (Refurbished) $90.09 Never lose direction with a reliable personal navigation device from Magellan. This RoadMate 1440 GPS navigator features a 4.3-inch WQVGA color touchscreen and text to speech technology. |
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Garmin Nuvi 265WT 4.3-inch Bluetooth Portable GPS Navigator $209.99 Get the big picture and big features for a small price with nuvi 265WT. The widescreen navigator takes you there with preloaded maps and turn-by-turn directions that call out streets by name. |
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Garmin Nuvi 1300 4.3-inch Widescreen Portable GPS Navigator $0 The ultra-thin nuvi 1300 from Garmin has a widescreen display. The GPS has an ultra-slim design that fits easily in pockets. |
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Garmin Nuvi 265T Portable GPS Navigator $164.99 Always know where you’re going with a Garmin Nuvi 265T navigatorAutomobile navigator lets you input a destination, giving you voice directions on how to get thereGPS navigation device sports a sleek and slim design |
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TomTom One XL-S Text-to-Speech GPS Navigator $135.99 TomTom features text-to-speech to announces street names and more GPS sytem gives you road numbers, traffic warnings and weather informationTomTom One XL-S features Bluetooth 2.0 compatibility |
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Nextar ME 3.5 Inch Portable GPS Navigator (Refurbished) $57.99 The entry-level Nextar ME navigation system is easy to use, easy to move, and easy on the budget. With a sleek design it rides well and looks great in any make or class of vehicle. |
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Garmin Nuvi 205 3.5-inch Portable GPS Navigator $0 The Garmin Nuvi GPS system has a bright 3.5-inch color display. This GPS navigation system offers a three-dimensional mapping perspective or 2D overhead view. |
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TomTom GO 740 Live 4.3-inch GPS Navigator $309.99 Stay on course with the TomTom GO 740 navigation systemLive connected GPS navigator allows you to see real-time traffic informationNavigation system also enables you to get the latest fuel prices on your route |
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TomTom XL 330 4.3-in GPS Navigator with Text-to-Speech (Refurbished) $95.99 TomToms award winning software means easy navigation from A to B. Switch on and go right out of the box. Just enter the address on the touchscreen and start driving. TomTom guides you door to door with turn by turn spoken instructions. |
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Garmin Nuvi 1390T 4.3-inch Widescreen GPS Navigator $0 Sleek, ultra-slim GPS fits easily in pocketEasy-to-use navigator has a touchscreen with a new enhanced interfaceAlways get where you’re going with a Garmin automotive GPS navigator |
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Garmin Nuvi 1350 4.3-inch Widescreen GPS Navigator $0 Never ask for directions again with the Garmin Nuvi 1350Navigator has a sleek, ultra-slim design to easily fit into pocketsGPS has a touchscreen with enhanced interface |
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Garmin Nuvi 1250 3.5-inch Portable GPS Navigator $0 Never lose your way with this Garmin GPS unitNuvi navigation system has an ultra-slim design that fits easily in your pocketAutomotive GPS has an easy-to-use, touchscreen interface |
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Garmin ecoRoute HD Nuvi Portable GPS Navigator Accessory $129.99 Use the easy-to-install ecoRoute HD device to transform your compatible Garmin Nuvi into a real-time diagnostics computer. With an on-board diagnostics computer, you can save the environment by conserving fuel and money through fuel-efficient navigation. |
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Garmin ‘Nuvi 255′ 3.5-inch Portable GPS Navigator with Friction Mount $189.99 Never lose your way with the Gamin Nuvi 255 portable GPS navigation device. This GPS device comes with a mounting stand for your car. |
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Garmin GPSMAP 78 Marine GPS Navigator $349 Thanks to the Garmin GPSMAP 78’s fully waterproof design, you can take this GPS navigator on land or water, worry free. For added versatility, this Garmin GPS is both geotagging and geocaching compatible. |
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TomTom GO 630 4.3 in GPS Navigator (Refurbished) $129.49 TomTom’s award winning software means ground breaking new technology for your driving experience. It has the most accurate maps and with TomTom Map Share technology you can instantly modify street names, street direction and POIs on your own device. |
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Garmin Approach G3 Golf GPS Navigator $319.99 Garmin Approach G3 Golf GPS Navigator |
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TomTom XL 350T Handheld GPS Navigator $179.99 TomTom XL 350T features IQ routes exclusive technology which evaluates routes based on actual traffic speeds rather than posted speed limits and will recommend the fastest route for the time of day. |