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Deal at UN Meeting Opens Way for Satellite Tracking of Jets

A deal reached at a U.N. meeting on Wednesday opens the way for satellite tracking of airliners, a major breakthrough motivated by the mystery disappearance of a Malaysia Airlines jetliner last year.

The agreement allows nations to set aside radio frequencies so that airplanes can be tracked by satellite — not just from the ground.

Under current radar-based systems, the movement of planes is monitored by land-based systems, leaving around 70 percent of the world's surface uncovered, according to the International Telecommunications Union, the U.N. communications agency.

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Modern planes that can send what are known as Automatic Dependent Surveillance-Broadcast, or ADS-B, signals to the ground are now on track to send signals to satellites too — with implementation expected by 2017.

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The accord to set aside the 1087.7-1092.3 MHz radio frequency for satellite tracking of planes came at the World Radiocommunication Conference, an international gathering organized every four years by the ITU. International civil aviation regulator ICAO has pushed for satellite tracking of aircraft, as long as current safety measures aren't jeopardized.

"The WRC's action today will enable better tracking and location of aircraft that otherwise could disappear from terrestrial tracking systems," said U.S. Ambassador Decker Anstrom, who is leading the U.S. delegation at the conference.