NTP GPS Server – Receiving Satellite Timing Information

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• Using GPS to Synchronise Network Time The global positioning system has been around since the 1980’s. It was designed and built by the United States Military who wanted an accurate positioning system for battlefield situations. However, following the accidental shooting down or a Korean airliner, the then US president (Ronald Reagan) agreed that the system should be allowed to be used by civilians as a way of preventing such a disaster from occurring again. From then on the system has broadcast in to two frequencies L2 for the US Military and L1 for civilian use. The system works by using ultra precise atomic clocks that are on ...
  
  
• GPS Time Server – Keeping Time with GPS The Global Positioning System along with the Internet has changed the way we live our lives. Thousands of motorists use them daily to navigate their around the country’s roads while airline pilots and ship’s captains use them for the same purpose on our seas and in our skies. But GPS has more uses than just navigation as the technology that GPS utilises is based around the atomic clock. Atomic clocks are highly accurate devices, so accurate that within a billion years they will not lose a second in time. It is this accuracy that allows satellite navigation devices to triangulate the positioning ...
  
  
• GPS Time Server – Keeping Time with GPS The Global Positioning System along with the Internet has changed the way we live our lives. Thousands of motorists use them daily to navigate their around the country’s roads while airline pilots and ship’s captains use them for the same purpose on our seas and in our skies. But GPS has more uses than just navigation as the technology that GPS utilises is based around the atomic clock. Atomic clocks are highly accurate devices, so accurate that within a billion years they will not lose a second in time. It is this accuracy that allows satellite navigation devices to triangulate the positioning ...
  
  
• Atomic Clocks and the GPS Time Server Atomic clocks have been around since the 1950’s when NPL (National Physical Laboratory) in the UK developed the first reliable caesium based clock. Before atomic clocks, electronic clocks were the most accurate method of keeping track of time but while an electrical clock may lose a second in every week or so, a modern atomic clock will not lose a single second in hundreds of millions of years. Atomic clocks are not just used to keep track of time. The atomic clock is an integral part of the GPS system (Global Positioning System) as each GPS satellite has its own onboard ...
  
  
• GPS Time Server – Utilising Satellite Navigation as a Timing Source Satellite navigation has been around for the last few decades courtesy of the American military controlled GPS system (Global Positioning System). The GPS network is currently the World’s only GNSS (global navigation satellite system, although Europe, Russia and China are developing their own. GNSS systems like GPS are based on the same principle. A constellation of satellites orbiting the Earth each have onboard an atomic clock. These clocks are accurate to within a few microseconds and it is this time-telling accuracy that allows satellite navigation possible. The GPS satellite continually transmits its location along with the time told by its atomic clock. ...