Ahad 06 Apr 2014 19:10 WIB

Xinhua: The 'ping' has the same frequency with flight recorders' emission

Japan's Maritime Self-Defence Force Commander Hidetsugu Iwamasa is pictured in front of one of their P-3C Orion aircraft currently at RAAF Base Pearce near Perth, April 4, 2014.
Foto: Reuters/Jason Reed
Japan's Maritime Self-Defence Force Commander Hidetsugu Iwamasa is pictured in front of one of their P-3C Orion aircraft currently at RAAF Base Pearce near Perth, April 4, 2014.

REPUBLIKA.CO.ID, SYDNEY/PERTH - A black box detector deployed by a Chinese patrol vessel, Haixun 01, picked up the signal with a frequency of 37.5kHz per second - the same as emitted by flight recorders - at about 25 degrees south and 101 degrees east, Xinhua reported on Saturday.

Australian search authorities said on Sunday  the Haixun 01, had picked up a fleeting "ping" signal twice in recent days in waters west of Perth, near where investigators believe Malaysia Airlines Flight MH370 went down on March 8.

Chinese and Australian ships hunting for a missing Malaysia Airlines jetliner have picked up separate acoustic signals in different parts of a vast Indian Ocean search area and are trying to verify if one could be from the plane's black box recorders.

More planes and ships were being sent to assist in that area, but meanwhile, Australia's HMAS Ocean Shield had reported a separate "acoustic event" some 300 nautical miles away.

The Ocean Shield is carrying sophisticated US Navy equipment designed to pick up signals sent from the black boxes, which may hold the key to why the aircraft ended up thousands of kilometers off course.

"We are treating each of them seriously. We need to ensure before we leave any of those areas that this does not have any connection with MH370," Retired Air Chief Marshal Angus Houston, head of the Australian agency coordinating the operation, told a media conference in Perth.

Australian search authorities said such a signal would be consistent with a black box, but both they and Xinhua stressed there was no conclusive evidence linking it to the Boeing 777.

"The 37.5kHz is the specific frequency that these locator pingers operate on," said Anish Patel, president of Sarasota, Florida-based Dukane Seacom, which made the black box locator.

"It's a very unique frequency, typically not found in background ocean noise," such as whales or other marine mammals, he told Reuters.

sumber : Reuters

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