A Chinese 
vessel searching for the missing Malaysia Airlines flight MH370 is said to have detected a pulse signal with a frequency of 37.5kHz per second in the southern Indian Ocean.
vessel searching for the missing Malaysia Airlines flight MH370 is said to have detected a pulse signal with a frequency of 37.5kHz per second in the southern Indian Ocean.
The 37.5 kHz per second frequency is currently the international standard frequency for the underwater locator beacon on a plane's black box.
The Xinhua news agency reported the discovery of the signal but that there has been no confirmation as to the identity of the source of the signal.
A black box detector deployed by the vessel Haixun 01 picked up the signal at around 25 degrees south latitude and 101 degrees east longitude, Xinhua reported.
Now into the 29th day of search operations since the disappearance of flight MH370, the discovery of this signal is even more crucial, as the ping from the beacon could be silenced in just a day or two.
The expected lifespan of the battery for the beacon is usually 30 days. However, experts believe that the lifespan could extend up to 45 days depending on maintenance of the beacon.
Time may be running out soon for the searchers to home in on the signal. It would still be possible to locate the black box containing the flight voice and data recorders should the signal from the beacon stop working but the task wil be significantly more difficult.
MAS flight MH370, with 239 crew and passengers, disappeared off the radar about an hour into its flight from Kuala Lumpur to Beijing in the early hours of March 8. The search for the missing plane has stretched from the South China Sea to the Strait of Malacca, then to the Indian Ocean. – April 5, 2014.
News announce in China
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