Page 44 - Pinger News Today

Investigation where black boxes were found without debris. >> reporter: indeed, questions about the fleeting signals the chinese picked up remain. for instance, how could a relatively rudimentary detector, this one cost no more than $16,000, designed for use in shallow water pick up pulses potentially miles deep? its technically possible, but not likely says the pacompany tt makes the detector. >> it would be right at the edge of the detection limit of that system. >> reporter: the signals are t...

Pinger batteries die, it will become a much longer search. were not then talking months. we are now talking years. side scan sonar has its limitations. it can reach out approximately one-half mile from its bottom, and each lateral side. and has to be towed at about 3 knots. and so it can -- it can take a very, very long time to try and locate the wreckage. in addition, you have the acoustic anomalies that were described by angus houstons subordinates during the press conference. the pingers can ...

>> hello, everyone, and welcome to a cnn special report, "mystery of flight 370." im don lemon. right now searchers are racing to confirm two pulse signals detected by a chinese ship. they were heard outside the search zone, but followed the same arc that has been guiding searchers. adding to the intrigue, they match the same frequency as a black box pinger. another acoustic event was also detected by the australian ship ocean shield about 300 miles away. searchers are now working on borrowed ti...

Confirmation by the bluefin-21 sidescan sonar. walk us through whats going on now. >> right now the navy with the pinger locator wants to make one more run, and then they can correlate all that information and come up with a location. that pinger on the aircraft is good for, you know, 4 to 7 miles, so right now if that is indeed the aircraft wreck, the location is pinned down within 4 to 7 miles. >> even if the batteries dry out and stop working, you still have a relatively small area to search....

Out there doing it, though. were confident if there is a pinger out there were confident we should find it weve got the best in the world engaging in this task. so thank you very much. >> inaudible ] >> well, i think we just have to be very, very careful. because we need to confirm it. in my view. with imagery of wreckage. i -- dont, you know, my view is, my personal view is probably not. but, as you just heard, strange things do happen in the ocean boy want more confirmation before we say "this...

Breaking news this morning. new signals detected from what investigators believe could be the wreckage of missing malaysia airlines flight 370. just hours ago, investigators revealing search crews have now picked up two signals, two signals consistent with those emitted by the planes black box recorders. right now, a desperate race against time to locate the flight data recorders before the batteries run out. frustrated families of those on board the missing plane are reeling from this news this...

Transmitting from a part of the aircraft. thats better than debris. debris, that doesnt mean theres a wreck. the wreck could be 1,000 miles away. >> the fact that its a ping. everybodys talking about 37.5 kilohertz. >> kilohertz. >> does that mean something special to you? >> yes, it does because theres only one device that i know that emits that frequency and thats this emergency locater. now, if someone wants to mix that up with oceanographics and the song of the whales call or the tortoises m...

On the same token, the chinese ship has also heard noise and that needs to be investigated, but it takes time to go back and investigate any of that because of the depth of the ocean and to make the turns and go back and acquire those noises at that depth. so it all takes time, but still its -- its -- it gives me a little bit of optimism that theyre picking up anything right now. >> and, steven, what -- do the clues -- the pinger -- theyre what, about 300 nautical miles apart what the australian...

Scenario. it is hard to imagine where you would have the two pinkers. there are two block boxes. >> so let me ask you about the pinging deviced and at this point you are not sure if your deviced were dispatches to that aircraft or were in those black boxes but i found it iraq lus to suggest that we could have black boxes that could ping for years. can you explain that? >> so the way it works. this is our 30 day pinger. this is what we use right now. this is not the wuone that is i the plane that...

Bearing in mind the -- so much rests on the pinger, are you surprised that we are still using something so rudimentary for something so important? >> im a little surprised, however i dont know of anything better. what i would suggest is that there are people in the intelligence community who i know developing longer lasting batteries. and so whereas the pinger may be the best thing we have now, it could last much longer. >> my question is, why is all this information presumably on the bottom of ...