China: Pulse signals lasted over a minute
- Uploaded by Will-Ease on Apr 5, 2014
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Could this be it? Possible Malaysia Airlines clue reported... (CNN) -- In what may turn out to be a major breakthrough in the month long search for Malaysia Airlines flight 370, a Chinese patrol ship searching the southern Indian Ocean discovered Saturday the pulse signal used by so-called black boxes, state news agency Xinhua reported. But the pulse signal has not been confirmed, China's Maritime Search and Rescue Center reported, according to China Communications News, which is the Ministry of Transport's official newspaper. The signal reported -- 37.5 kHz -- "is the standard beacon frequency" for the plane's cockpit voice recorder and the flight data recorder, said Anish Patel, president of pinger manufacturer Dukane Seacom. "They're identical." The frequency was chosen for use in the recorders "to give that standout quality that does not get interfered with by the background noise that readily occurs in the ocean."