Page 197 - Ping News Today

Chinese patrol ship searching this effort to find flight 370 has detected a pulse signal at 37 1/2 kilohertz per second which is the exact frequency a pinger on a black box sends out that ping. weve got our panel here covering this search and this investigation from many different angles all around the world. i want to go straight to pilot dave funk. the discussion up to this point has been searching for debris and hopefully that debris field would lead searchers to the black boxes. it has to be...

So it fits is what we are saying, and still a lot of skepticism if that is really the ping. >> well, les abend has a question. what do you want to nknow, les? >> well, marty, are you putting in a lat long to go to that position at a particular altitude? im not in the ffmc, and maybe should address that to mitchell? >> well, go ahead. >> that is what we we had discussed doing the very thing. >> first of all, i dont have the lat/long, and if i did secondly, on this particular fmc, i cant input it....

Layers and salinity layers. all that has to do with the propagation of sound in it. it may get caught in the layer and duct. these are present the atmosphere, as well. in the water, people who deal with sound propagation and water are acutely aware of salinity and temperature levels. >> even if this is a ping, or a click if you listen to it, finding the plane and wreckage could be a completely different challenge depending upon depths, right? >> and how did this thing hit the water? did it hit t...

Planes just finished coming in for the night. theyre still trying to spot the piece of debris on the surface. >> paula newton, thank you so much. in perth at 2:00 your time. lets focus on the underwater pings. the precious ping sound happened about once every second. but back to the battery. battery-powered ping may soon go silent. lets bring in mike williamson. nice to have you on. >> thank you. >> were talking about this approximately 150-mile track to use this pinger locater. listening for th...

He just mentioned, we dont know about the dispersement of the pingers among various aircraft. thats the one on 370, effectively. looks small, but it is mighty. >> it is mighty. goes for a long time. obviously, better batteres would make it last longer or could actually be sending out other than just a ping, some type of other signal, as well. even at 12,000 feet, where we think this plane may be at the bottom of the ocean here. thats still a very deep depth to try to send anything out from there...

When they want to be zeroed in on some evidence of 370. matthew chance in perth, thank you. >> the subsurface search on day 28 -- it has been 28 days looking, searching for mh flight 370, but the window to locate the planes black box or that critical data recorder is closing very quickly, with perhaps only a day or two of battery life left to send out those critical pings. lets go to will ripley. he is on a boat off the coast of western australia. i know youre going to show us some of the techno...

To further narrow the search area. >> but the search team leader says without any wreckage investigators will not be able to narrow the search. analysts say investigators could have just two days before the battery dies on the s and the devices go silent. batteries actually die on a decline. these batteries not immediately. lea is with us. this finger locator, when the batteries die its worthless. >> its true. the pinger locator is searched to search a mall area within a known crash location for...

Pinger locater device. as we speak, that super-sensitive microphone is following a 150 mile straight line track at a depth of some 10,000 feet, strange straining to pick up this. [ clicking sound ] it is a faint set of pings hopefully coming from the flights data and voice cockpit recorders. the british ship "echo" is trolling in the opposite direction and working its way right towards the "ocean shield." with zero physical traces of flight 370 located by the dozens and dozens of planes and ship...

>> the pinger is transmitting a very high frequency signal. it does have mechanisms to translate the high frequency sounds to a noise and register it. when we heard it, it is like ping, ping, ping. you cant hear it if it is in the room. it is so high frequent sichlt it has to be done slowly and at a distance of no more than a couple of kilometers away from it. the difficulty is the depth of the water versus the topography under water, what the actual seabed or ocean bed is looking like. put all ...

Kyung lah. shes got the latest on the search. kyung? >> reporter: wolf, normally at this time in the morning were talking about the waiting for the search to begin but the search is under way right now. it is happening under the water. there are two pinger locators. there is one from the u.s. navy being towed by the "ocean shield" and another being towed by a british ship. they are starting on one end of a 150-mile track and then they will converge upon each other and meet. it is frustratingly s...