Pulse signal discovered in ocean by a Chinese Ship

Chinese ship

Source: China Daily

PERTH, Australia – Haixun 01, a Chinese patrol ship searching for missing Malaysian Airlines flight MH370, detected a pulse signal with a frequency of 37.5kHz per second – the same as those emitted by the plane’s flight recorders -in the southern Indian Ocean Saturday. 

A black box detector deployed by the Haixun 01 picked up the signal at around 25 degrees south latitude and 101 degrees east longtitude.

37.5 kHz per second is currently the international standard frequency for the underwater locator beacon on a plane’s “black box”.

Chinese military expert Yin Zhuo told CCTV there’s a ‘high possibility’ that the signal detected by Haixun 01 is from the passenger jet that vanished on March 8 with 239 passengers on board.

Wu Renbaio, vice president of the Civil Aviation University of China, also said the possibility is high and the main task for the multinational team is to pinpoint the exact location of the pulse and to confirm with Boeing that it is from their jet.

And Xinmin Evening News said the Chinese patrol ship “basically confirmed” the pulse signal is from the plane.

A Ministry of Transport spokesperson said China needs to work with Australia and other countries involved in the search for MH370 to confirm the source of the signal, and this may be a complicated process.


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  1. Quoting BBC

    Richard Westcott reports on the use of a pinger locator to find a black
    A Chinese ship searching for the missing Malaysia Airlines plane in the southern Indian Ocean has picked up a pulse signal, Chinese media say.

    They say the signal has a frequency of 37.5kHz – the same as those emitted by the flight recorders.

    However there is no evidence so far that it is linked to MH370.

    Dozens of ships and planes have joined the search, with the operation moving into its most intensive phase before batteries on the data recorders fade.

    On Saturday the Haixun 01 – one of two Chinese ships in the area – picked up the signal at about 25 degrees south latitude and 101 degrees east longitude, the state-run Xinhua news agency said.

    “It is yet to be established whether it is related to the missing jet,” it cautioned.

    China’s Liberation Daily reported that three people on board had heard the signals, which were not recorded as they came suddenly.


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