Page 46 - Pinger News Today

Relocating science packages that are left on the sea floor and need to be retrieved later or retrieving fishing gear. anything you really need to get back to that exact spot you put a pinger on it and come back later. do you have any comment, paul, on how far a signal from a commercial application might have traveled? >> thats difficult to say because were talking about the medium through which is signal is passing being the water. and whether or not its still. which, of course, we know its not....

Are not many limitations you can find it. the chinese vessel did duplicate the 37.5 gigahertz. you are talking about this section of the ocean 20,000 feet. if indeed a pinger or pulse is detected that is now in the area, give me an idea of how and by what means would the exploration go to those depths. you have been in depths like this. explain what would be in store. >> there are two ways to get to these depths. you can use a remote operated vehicle, an rov and you would need a work class rov w...

Die. >> to find that pinger in those trenches or to find it after the pinger stopped in those trenches is going to be extremely difficult. >> reporter: cnn, buffalo, new york. that does it for this hour of "cnn newsroom." thank you for joining us. up next well join "new day" for the latest on the developments of flight 370. (dad) well, weve been thinking about it and were just not sure. (agent) i understand. (dad) weve never sold a house before. (agent) ill walk you guys through every step. ...

Airline would fly 30 minutes to cover that kind of distance. no chance the parts would be separated and attached to the airplane. they cant both be right. although chinese, if they are connect sounds likely. im very excited. >> two chinese heard, might be a mile apart, would that be the same sflf thats more like it. thats about the range of a pinger in the deep water, the depth of the water and any distance over the top of it. were right on the edge of detecting it at all. >> i wonder if were ta...

Of the immense expanse theyre dealing with. tell me, bobbie, if the pinger goes out or goes silent, whats this next step under water? >> you still have an underwater search capability with those autonomous underwater vehicles doing side scan sonar and you take the data that youve got. maybe you still look at the areas that youve got pingers and start there. you take the best radars and satellite and continue the search by the mappings of the ocean, but now instead of a straw on the football fiel...

Explanation as to what -- and we have some visuals to show of that. you have very simple explanation as to how we figure this out, if its actually pings from the black box. you say number one is frequency. >> yes. were looking for 37.5 kilohertz. >> okay. >> on the screen you see two different wave forms. one is of a constant frequency. and the other one is what we call a chirp. where you see on the left side and the right side, theyre different frequencies. theyre varying, different amounts. so...

Sophisticated enough equipment on board those ships to hear anything of that nature. theyd be very surprised if they were able to hear a black box. 300 miles away on the australian ship "ocean shield," it is carrying a naval device called a pinger located. on that ship they also heard a noise. that was this morning. not much more information out of that. all the leaders are saying you should be very cautious when dealing with this. so far nothing has been confirmed to be part of mh-370. they wan...

In 2009 it passed right over the box from flight 447 in the atlantic. in that case the pinger locater failed to find the pinger. they said thats because the pinger had broken off from the black box. it might have been damaged. three other cases success, egypt air crash in the atlantic in 1999 and air crash of adam air jet off indonesia. the black boxes were found by search areas were small. malaysia air is the fifth attempt and still a long shot. >> we have nothing to use. its a better shot on t...

Hand held pinger locater which was only ever designed for relatively shallow water, close order kind of work. it was always going to be a big ask for the towed pinger locater to locate the pinger. to do it on a hand held device is a long shot, indeed. >> mm-hmm. the question is, what else could it be? what else could it be? some people said it could be ocean light. could be a whale. could be other instruments used by the military. were not sure. were going to explore those possibilities with rob...

With the correct measure of caution. unlike so many earlier theories of the investigation, now weve got it. everybodys speaking about the pingers including the experts you have said, well, we need to treat this with caution. the australians have said we need to treat this with caution. the pingers are not the ball game. as bobbie testified air france, the pinger were dead. perhaps they never worked at all. you know, this is immeasurably more difficult than air france because the search area is s...