Page 174 - Ping News Today

In perth, 3:00 in the morning there. will, the ping detected by the ocean shield was not the same frequency we would expect to hear from a black box. what are crews there saying about that? >> reporter: yeah, remember when we first got the word that those chinese ships that potentially heard a ping, and we heard the 37.5 kilo hertz, and then were hearing that these pings were like 33, and 33.2. and so youre wondering, what gives, why is it not the same number? well, the manufacturer of the black...

This as it comes that were going to get our first listen now of the actual ping picked up over the weekend. here it is. listen closely. australian crews say their audio equipment can pick up signals like this within two miles. the problem is they dont know exactly where its coming from. scott hoamilton is a boeing 77 expert and hes my nest today. scott, we hear this ping. it goes every second just kind of like a beat. what do you make of it? >> its so faint that you really have to have very sens...

And youll be ready for tomorrow today. comcast business. built for business. we have breaking news from tonights news conference in perth. the search for the towed pinger locator goes on. a search that could take a very long time. rosa flores took a pinger out on to rhode islands narragansett bay to show some of the obstacles they may encounter in the indian ocean. >> reporter: this is what a ping sounds like. >> very high frequency. >> the critical sound searchers are hoping to hear in the de...

Pinger life span dwindles, hes looking now to when he hears the from the australians, when, whats the next path, when will they decide to use -- >> and possibly what were going to hear at 11:00 eastern, in about 45 minutes. >> possibly, indeed. >> bill nye, i wonder, does that mean that the battery life has run out? or a false positive. whats your take on this? >> im skeptical that its a false positive. ive heard the ping, albeit, in the lab, and its very distinctive. so im skeptical its a false...

But sophisticated listening devices are the water with crews hoping that the batteries in the planes black boxes have not been drained quite yet. this morning the search zone is more focused, narrowing to some 30,000 square miles. but is that enough? joining us now from boston is cnn analyst david gallow. he was a leader in the search for air france flight 447 and is currently director of special projects. david, i great to see you again. >> hi, kate. likewise. >> of course. i want -- we need to...

We usually get a plus five day variance on our batteries. we anticipated them lasting longer. as the battery degrades the signal will go down. the frequency will change a little bit and then the ping cadence will slow down from the normal one ping a second. it is consistent. having heard the actual pings and having our team analyze it, the noise is definitely consistent with what our ping is designed to do when it hits the water. >> thomas, how big of a development is this? how could it change t...

This as we get reports that the plane may have changed its course to avoid indonesia recar. president of boyd group international, mike, lets start with the pings. im focused on the australian pings, you know, discovered, not the chinese ones because those seem to be dismissed as probably not being the black boxes but more and more experts saying the ones picked up by the aussies may be the boxes. what do you make? >> the past four weeks, the plane, the plane but no answers. the reality, this co...

Now the race is on to relocate those pings. today the search zone is drastically scaled back, reduced to 30,000 square miles. as for the underwater drone here, pretty impressive sonar equipment here. the american bluefin, it will stay out of the water unless they hear another ping to narrow the search even further. >> now, until we stop the pinger search, we will not deploy the submersible. is that clear? we will not deploy it, unless we find -- unless we get another transmission, in which case ...

Search, it will take many days because it is very slow and pain stalking work to scour the oceans floor and the depths are very deep and it is very challenging. >> reporter: until the mechanical limits of the black box has been reached and it has been under water too long to emit a continuous ping the plan is to keep their ears to the water >> the priority is finding anything related to the plane. what are the crews focused on? >> it is about locating the pinging. ships are trying it condense th...

And you need to eliminate the possibility that anything else is getting into your system. you know, you have to know what youre measuring, and that what you are measuring is what you are looking for and not a result of ambient. >> yeah. geoffrey thomas, we just heard -- we just learned that they arent deploying the submersible drone until they get another transmission. is that the right move at this point, do you believe? >> look, i think it is, don. and at the same time, we shouldnt underplay t...