gps |
||
microsoft gps receiver |
gps receiverThe GPS or Global Positioning System is a global navigation system used for military and civilian applications alike.
The United States Department of Defense developed the system, officially named NAVSTAR GPS (Navigation Signal Timing and Ranging GPS), and the satellites are managed by the 50th Space Wing at Schriever Air Force Base. Although the cost of maintaining the system is significant, GPS is available for free use in civilian and commercial applications. Hand-held GPS units are often used by hikers and mountain climbers to plot their courses and to accurately reflect exactly where they are. The author once used GPS to organize a helicopter evacuation of an injured motorcycle rider in a remote region of the La Sal mountains in Utah. A reading was taken, coordinates given, and the pilot was able to find us with ease. During the Gulf War, the shortage of military GPS units and the wide availability of civilian ones among personnel resulted in disabling the Selective Availability. In the 1990s the FAA started pressuring the military to turn off SA permanently. This would save the FAA millions of dollars every year in maintenance of their own, less accurate, radio navigation systems. The military resisted for most of the 1990s, but SA was eventually turned off in 2000 following an announcement by then US President Bill Clinton, allowing all users to enjoy nearly the same level of access. GPS is short for (the) Global Positioning System, a satellite navigation system developed by the US Department of Defense. A fleet of more than two dozen GPS satellites broadcasts precise timing signals to GPS receivers, allowing them to accurately determine location anywhere on Earth. In practice, this means that using a GPS device, you can find out where you are in terms of longitude, latitude and altitude. In 1998, Vice President Al Gore announced plans to upgrade GPS with two new civilian signals for enhanced user accuracy and reliability, particularly with respect to aviation safety. Commercial civilian GPS receivers are purposefully less accurate than they might be. In specific, they are required to have limits on the velocities and altitudes at which they will report coordinates in order to prevent them from being used to create improvised missiles. GPS was first made available for commercial applications in 1983, after the Soviet Air Force shot down the civilian airliner KAL 007 in restricted Soviet airspace, killing all 269 people on board. GPS derives in part from its predecssor, the LORAN navigation system. LORAN was designed for ship and airplane navigation in the 1940s for use during World War II. GPS allows the military to accurately target its missile arsenal, largely composed of cruise missiles and precision-guided munitions. This was born out by the use of SOFLAM (Special Operations Forces Laser Acquisition Markers) targeting during the attacks on Tora Bora in Afghanistan. It also improves the accuracy of the US submarine launched ballistic missiles by providing precise locational information to the submarine commanders. Finally, command and control over troops is improved because commanders know precisely where their troops and the enemy are located on the battlefield. In 1985, ten experimental Block-I satellites were up. A complete "constellation" of 24 satellites was in orbit by January 17, 1994. One of biggest problems for GPS accuracy is that changing atmospheric conditions change the speed of the GPS signals unpredictably as they pass through the ionosphere. The effect is minimized when the satellite is directly overhead and becomes greater toward the horizon, as the satellite signals must travel through the greater "thickness" of the ionosphere as the angle increases. Once the receiver's rough location is known, an internal mathematical model can be used to estimate and correct for the error. GPS has become a vital global utility, indispensable for modern navigation on land, sea, and air around the world, as well as an important tool for map-making, and land surveying. GPS also provides an extremely precise time reference, required for telecommunications and some scientific research, including the study of earthquakes. GPS is coming into common use in cars these days. Most new cars allow you to purchase GPS technology that will help you plot your trip from one location to the next. When it was first deployed, GPS included a feature called Selective Availability (or SA) that introduced intentional errors of up to a hundred meters into the publicly available navigation signals, making it difficult to use for guiding long range missiles to precise targets. Additional accuracy was available in the signal, but in an encrypted form that was only available to the United States military, its allies and a few others, mostly government users.
1. Global Positioning System - Wikipedia, the free encyclopedia
GPS receivers are now integrated in many mobile phones. The Global Positioning System (GPS) is a U.S. space-based global navigation satellite system. ... 2. Trimble - GPS Receivers GPS Receivers. The Trimble® GPS Pathfinder® family of receivers provides quality, reliable GPS positioning for GIS data collection and maintenance applications. ... 3. Global Positioning System Public information about the Global Positioning System (GPS) and other space-based positioning, navigation, and timing (PNT) systems 4. Gps Receivers - eHow.com Learn about Gps Receivers on eHow.com. Find info and videos including: How to Buy a Garmin GPS Receiver, How to Use a GPS Receiver for Hiking, How ... 5. HowStuffWorks "How GPS Receivers Work" GPS can pinpoint your location anywhere on Earth. Find out how GPS works, learn about the amazing technology behind GPS and read reviews of GPS devices. 6. Garmin | What is GPS? The global positioning system is a satellite-based navigation system consisting of a network of 24 orbiting satellites, eleven thousand nautical miles in space, in ... 7. Earthmate GPS - DeLorme DeLorme GPS receivers & renowned maps to help you GPS-navigate with confidence. Including the PN-Series GPS Handhelds for the trail, with USGS QUADS, NOAA charts & more. ... 8. GPS Receivers: Compare Prices, Reviews & Buy Online @ Yahoo! ... Yahoo! Shopping is the best place to comparison shop for GPS Receivers Compare products, compare prices, read reviews and merchant ratings. 9. Amazon.com: gps receiver A community about gps receiver. Tag and discover new products. Share your images and discuss your questions with gps receiver experts. 10. GPS Store GPS Systems at The GPS Store, Inc. The Worlds Favorite Source for Garmin GPS Navigation Systems, Magellan Units, TomTom Receivers, Lowrance, Marine Electronics and ... 11. Portable GPS, Cheap GPS Devices, Discount GPS, GPS Locator ... The Best Deals on Portable GPS Devices and Navigation Devices, Discount GPS and Cheap GPS Locators, Handheld GPS, Fast and Easy Shipping at Geeks.com... 12. gpsinformation.net Information, software, and hardware reviews of name brand GPS receivers and PDAs, plus instructions, software, and tutorials. 13. GPS People CF GPS Receiver $99.95. Free Shipping. HI-406C. Bluetooth GPS Receiver with Digital compass ... in 1 PDA Holder with Built-in SiRF Star lll GPS Receiver 20 Channels ... 14. Trimble - Trimble SPS551 Modular GPS Receiver Trimble Home > Construction Home > Trimble SPS551 Modular GPS Receiver ... The Trimble® SPS551 Modular GPS Receiver ideal for real-time marine construction use, in-vehicle site ... 15. NavSync GPS Manufacturer of sensitive GPS receiver modules and chipsets for the OEM marketplace. 16. GPS V - This product has been discontinued. The GPS V is one versatile navigator that delivers automatic routing, detailed mapping and WAAS capability all in a compact GPS ... 17. Bluetooth GPS, GPS Data Logger, GPS for Palm, Laptop ... We offer the latest Bluetooth GPS receiver, navigation solutions for Car, laptop, PDA, PocketPC, iPAQ, HP, Dell, PalmOne, WiFi, Bluetooth accessories, miniSD, ... 18. How to Choose a GPS Receiver: Expert Advice from REI All GPS receivers sold at REI perform four basic functions: location, distance/direction ... When using a GPS receiver on a hike, there are four functions that ... 19. GPSonsale Features the latest GPS units and accessories. 20. Garmin Handheld GPS Receivers Tiger GPS offers the guaranteed lowest prices for Garmin GPS, Magellan GPS, TomTom GPS, and Lowrance GPS. 21. How to Use Your New GPS Receiver: Expert Advice from REI These are common to virtually any GPS receiver intended for hiking: ... With waypoints in place, your GPS receiver can guide you from point to point. ... 22. GPS Receiver USB Adapter for Computers & Laptops NZ Before you purchase a GPS receiver, spend some time comparing different brands and models to determine which GPS navigator works best for you. 23. SANAV-San Jose Technology, INC. GPS Logger / Receiver. GPS Logger. GPS Receiver. Marine Use Products ... AIS Receiver. Marine GPS Antenna. Marine GPS Receiver. GPS Module. Atheros. MTK. U-Blox. SIRF ... 24. Different types of GPS receivers Please be aware of the different types of GPS receivers that exist. 25. Wireless GPS receivers Bulk GPS is a distribution partner for GPS receivers, modules, oem, and more 26. On the Trail Hike, camp, hunt, explore and geocache with confidence. Our rugged, waterproof handhelds track exactly where you are and where you're going so you can focus on having ... 27. GPSMAP 60CSx - The GPSMAP 60CSx adds a removable microSD card, high-sensitivity GPS receiver, barometric altimeter, and electronic compass to the popular 60-series products. 28. PAT INC --- HOME The next generation of innovative high-performance GPS receivers ... Rugged GPS RTK rover receiver with an integrated radio and GLONASS support ... 29. Global Positioning System navigation device - Wikipedia, the ... A GPS navigation device is any device that receives Global Positioning System ... A modern SiRFstarIII chip based 20-channel GPS receiver with WAAS/EGNOS support. ... 30. GPS Navigators and Accessories - Welcome to GPS4US Online Store Please, check out our special offers on the most popular Newly Overhauled GPS navigation systems: GARMIN GTM 11FM TrafficReceive 31. TeleNav GPS Receiver turn your cell phone into a GPS ... The TeleNav GPS Receiver a small, MP3-player-sized devicee communicates wirelessly through Bluetooth to your mobile phone or BlackBerry. 32. GPS - NaviLink 5.0 Solution: NL5350 NaviLink 5.0 single-chip GPS solution: NL5350 33. Garmin GPS Receivers, Garmin GPS Accessories, Garmin GPS Software Authorized reseller of Garmin GPS Receivers, Garmin GPS Software, Garmin GPS Accessories, plus Magellan, Lowrance, Navman, and TomTom. 34. Products Magellan 30-Day Map Guarantee. Legacy Products. Contact Us. About Us. Careers. Contact. News ... Expand Your GPS. Your location is: United States. Change Location. AAA Members Save at ... 35. Bluetooth, Compact Flash, SD, USB Mouse GPS Receivers. Deluo Bluetooth GPS Receiver. Deluo Bluetooth GPS SiRF Star III w/Streets & Trips 2007. ... Deluo MouseGPS Receiver, combines GPS technology with a portable USB mouse. ... 36. GPS Frequently Asked Questions - USCG Navigation Center The User Segment consists of the receivers, processors, and antennas that allow land, sea, ... How is GPS used? GPS receivers collect signals from satellites in ... 37. List of Supported GPS Receivers for EasyGPS Freeware GPS receivers from the following manufacturers are supported in EasyGPS. ... Tracking works with any GPS receiver or GPS antenna that outputs NMEA data to a COM port. ... 38. GPS Receiver Test GPS Receiver Test. National Instruments supplies flexible software tools and modular RF instrumentation for testing global positioning system (GPS) receivers. ... } ?>
gps receiver online resources. |
|