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Inmarsat, the British satellite operator that was pivotal to tracking down the final location of flight MH370, will now offer a free tracking service for all passenger airplanes. This free service will carry the aircraft’s exact location (via GPS), along with its heading, speed, and altitude (from the plane’s on-board sensors). This should go a long way towards preventing future planes from going missing — though, sadly, when it comes to Malaysia Airlines flight MH370, there’s still sadly nothing to report after two months and hundreds of millions of dollars of search and rescue efforts.
That app works by mirroring ATC radar screens. Nothing goes from the aircraft to the phone. A lot of people are operating under the false impression that aircraft GPS systems send location out. They do not. They are only receivers that triangulate time signals from satellites. They (the receiver) can then input info to the onboard Flight Director and/or navigation displays. So the Intelsat program would require the installation of of an additional dedicated transmitter on every aircraft. And if someone really wanted to disappear, they just pull the circuit breaker for that radio, or on the777, the high-speed backplane bus breaker.
originally posted by: Spiro
There is an App for the Iphone that allows you to track, trace and monitor an airplane that is going over head and also to a certain distance too. This leads me to believe that " something " was switched off in the plane, otherwise someone, somewhere could monitor it from their phone.
Just thinking out loud is all