GPS Basics

GPS or Global Positioning System is fully functional Global Navigation Satellite System. This system uses a constellation of 24 satellites in medium earth orbit. These satellites transmit microwave signals, so that a GPS receiver to pinpoint their location, speed, direction and time. This system was developed by the U.S. Department of Defense and was as NAVSTAR GPS, which was called by John Walsh. NAVSTAR is not an acronym, sinceIt is generally believed.

This constellation of satellites of United States Air Force 50 Space Wing manages. The cost is about $ 750 a year, including maintenance costs, trading, research and development. After killing of Korean Air Lines Flight 007 for the year 1983 a Directive was adopted, which made ​​the GPS for civilian use and has been widely used since then. This is a very useful tool for the creation of maps, landscapes, mountains, tradeand many scientific applications. It also provides a time reference, which may include, in many applications, the study of earthquakes and synchronization of telecommunications networks can be used.

TomTom GPS Navigators

A GPS receiver calculates the distance between him and only three GPS satellites. Each satellite continuously transmits an atomic clock inside certain information must include the exact time, location of the satellite transmission and the almanac. The receiver measures the time of receiptthe signal. Thus the distance to each satellite is known. Knowing the three distances is a trilateration format. Using a fourth satellite, to avoid the need for a clock receiver.

GPS Basics

Tom Tom Go 930 Portable GPS Automobile Navigator Fitting Faux Leather Travel Bag w/Multi-Pockets Review

Tom Tom Go 930 Portable GPS Automobile Navigator Fitting Faux Leather Travel Bag w/Multi-Pockets Feature

• Fits Tom Tom Go 930 Portable GPS Automobile Navigator
• Multiple pockets and pockets perfect to hold onto all those essentials while traveling.
• The high-quality strap is adjustable and reinforced to avoid damage and breakage.
• Exterior is a high quality synthetic leather that keeps all your belongings safe from damage.
• The color makes your bag easy to spot, deterring theft.

Tom Tom Go 930 Portable GPS Automobile Navigator Fitting Faux Leather Travel Bag w/Multi-Pockets Overview

This Travel Bag with Multiple Pockets is the perfect bag when traveling or going on trips. The bag has an exterior pocket perfect to put in your mp3 player to listen to as you go. The interior has multiple pockets with velcro enclosures designated to hold onto your essentials and keeping them organized. The strap is reinforced to keep it from snapping or breaking. It is the same silver color as the bag itself, making it noticable and deterring theft. Store your belongings in this travel bag and head off to new destinations!

Customer Reviews

*** Product Information and Prices Stored: Aug 24, 2011 03:21:37

The Global Positioning System is used in a variety of military and civilian applications. It allows soldiers find their targets in an obscure or completely unknown territory and coordinate the movements of troops and supplies. GPS receiver to use military commanders and soldiers are calledDigital assistants. A combination of GPS and wireless communication enables real-time monitoring of the vehicle.

It 'also used in the marking of targets as hostile missile systems and allows to reach these goals with high precision. Air to Ground role of military aircraft used GPS to find targets. GPS also allows for specifically military weapons including ICBMs, cruise missiles, precision guided missiles. Artillery shells are integrated withGPS receiver and supports loads up to 12,000 G. These are used for 155 mm howitzers. Each downed pilot can be easily removed if it has a GPS receiver. And 'commonly used by the military for reconnaissance and mapping. Some GPS satellites and nuclear detonation detectors.

GPS helps a lot of civilians in the detection and navigation. His ability to calculate the local velocity and orientation is extremely useful. His time is passed due to possibleAbility to synchronize. A common example of using GPS is a CDMA digital phone. Each base station uses a GPS receiver timing to synchronize the code with different base stations and thus do not simply reach the intercellular and thus support calls and other applications. GPS device also revolutionized tectonics by measuring the movement of a failure during earthquakes.

The two GPS developers, Ivan Getting and Bradford Parkinsonreceived, National Academy of Engineering Charles Stark Draper Prize in 2003. Roger L Easton received the National Medal of Technology, February 13, 2006. Other tracking systems are similar Beidou, which was developed by China and will be proposed, expanded in COMPASS Galilieo, the European Union, along with many other countries like India and China developed, GLONASS, which is being development by Russia is completely available in partnership with India, is IRNSSIndia proposed that regional and QZSS was proposed by Japan.

GPS Basics