How GPS Works —— About 3G GPS tracker
The intricacies of GPS ( electronic tracking device ) are steeped in mathematics, physics, and engineering, but you don’t need to be a rocket scientist to understand how GPS works. GPS is composed of three parts: satellites, ground stations, and receivers.
Eyeing satellites In GPS jargon, a satellite is the space segment. A constellation of 24 GPS satellites (21 operational and 3 spares) orbits about 12,000 miles above the Earth. The satellites zoom through the heavens at around 7,000 miles per hour. It takes about 12 hours for a satellite to completely orbit the Earth, passing over the exact same spot approximately every 24 hours. The satellites are positioned where a GPS receiver can receive signals from at least six of the satellites at any time, at any location on the Earth (if nothing obstructs the signals).
A satellite has three key pieces of hardware:
Computer: This onboard computer controls its flight and other functions.
Atomic clock: This keeps accurate time within three nanoseconds (around three-billionths of a second).
Radio transmitter: This sends signals to Earth.
The constellation of NAVSTAR satellites and their orbits.
GPS satellites don’t just help you stay found. All GPS satellites since 1980 carry NUDET sensors. No, this isn’t some high-tech pornography-detection system. NUDET is an acronym for NUclear DETonation; GPS satellites have sensors to detect nuclear-weapon explosions, assess the threat of nuclear attack, and help evaluate nuclear strike damage. The solar-powered GPS satellites have a limited life span (around 10 years). When they start to fail, spares are activated or new satellites are sent into orbit to replace the old ones. This gives the government a chance to upgrade the GPS system by putting hardware with new features into space.
Generally one might think that the size of these tracking device might be very big and it might not be handy. But, the fact is that most of the tracking devices are so small that they can be held in the palm of your hand or kept in car’s dashboard. Using this system you can get regular updates of the location of your device, the path travelled and much more. waterproof GPS online data can be used for variety of purposes and opens up a whole wide array of possibilities in a variety of fields. Such data can be either used directly from the GPS device or else transferred to mobile, PDA or personal computers.
3G GPS tracker gives you the location of anything, at anytime. Utilizing cutting-edge GPS technology, it can help you track anything, be it your car, children, or a prized possession, all in real time. The tracker’s manageable size allows you to install it easily, while being tough enough to withstand the bumps and movement of vehicle tracking.
3G GPS tracker are very customer friendly and easy to operate. It is ideal for keeping track of teenagers and senior citizens when they on the road, lest they face any problems en-route. There are many companies in china who are manufacturing GPS tracking device. It is an important system to have on one’s vehicle and it is reasonably priced too. It increases the safety of one’s vehicle. Car owners find these tracking systems to be very useful and also it helps to see good ROI as using a GPS ID Card makes tracking the location of their vehicle as well as gather all the information regarding the distance travelled, fuel consumed, and working condition of the engine without being examining the vehicle every day. These accurate data results may help in decreasing the cost of the fuel and other services.
Eyeing satellites In GPS jargon, a satellite is the space segment. A constellation of 24 GPS satellites (21 operational and 3 spares) orbits about 12,000 miles above the Earth. The satellites zoom through the heavens at around 7,000 miles per hour. It takes about 12 hours for a satellite to completely orbit the Earth, passing over the exact same spot approximately every 24 hours. The satellites are positioned where a GPS receiver can receive signals from at least six of the satellites at any time, at any location on the Earth (if nothing obstructs the signals).
A satellite has three key pieces of hardware:
Computer: This onboard computer controls its flight and other functions.
Atomic clock: This keeps accurate time within three nanoseconds (around three-billionths of a second).
Radio transmitter: This sends signals to Earth.
The constellation of NAVSTAR satellites and their orbits.
GPS satellites don’t just help you stay found. All GPS satellites since 1980 carry NUDET sensors. No, this isn’t some high-tech pornography-detection system. NUDET is an acronym for NUclear DETonation; GPS satellites have sensors to detect nuclear-weapon explosions, assess the threat of nuclear attack, and help evaluate nuclear strike damage. The solar-powered GPS satellites have a limited life span (around 10 years). When they start to fail, spares are activated or new satellites are sent into orbit to replace the old ones. This gives the government a chance to upgrade the GPS system by putting hardware with new features into space.
Generally one might think that the size of these tracking device might be very big and it might not be handy. But, the fact is that most of the tracking devices are so small that they can be held in the palm of your hand or kept in car’s dashboard. Using this system you can get regular updates of the location of your device, the path travelled and much more. waterproof GPS online data can be used for variety of purposes and opens up a whole wide array of possibilities in a variety of fields. Such data can be either used directly from the GPS device or else transferred to mobile, PDA or personal computers.
3G GPS tracker gives you the location of anything, at anytime. Utilizing cutting-edge GPS technology, it can help you track anything, be it your car, children, or a prized possession, all in real time. The tracker’s manageable size allows you to install it easily, while being tough enough to withstand the bumps and movement of vehicle tracking.
3G GPS tracker are very customer friendly and easy to operate. It is ideal for keeping track of teenagers and senior citizens when they on the road, lest they face any problems en-route. There are many companies in china who are manufacturing GPS tracking device. It is an important system to have on one’s vehicle and it is reasonably priced too. It increases the safety of one’s vehicle. Car owners find these tracking systems to be very useful and also it helps to see good ROI as using a GPS ID Card makes tracking the location of their vehicle as well as gather all the information regarding the distance travelled, fuel consumed, and working condition of the engine without being examining the vehicle every day. These accurate data results may help in decreasing the cost of the fuel and other services.
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