it s a frequency designed to be heard not by the human ear, but by acoustic listeners. those acoustic listeners will then provide both a visual reference point, a wave form, and an audio sound which can be heard then by the ear. the pinger is not only designed for the 37.5, but the rhythmic one-second pings. there s many noises in the ocean. some of them are mammal made. others could be from other machinery. the sound we learned last night and over the last few days sound travels far, especially if it gets into the deep sea sound channel. but the pinger, the very noise of the pinger is designed to be unique. it is designed to be identifiable, and that is why angus houston said last night he was encouraged because it had the characteristics of the black
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out tonight. i ll take uconn just to be cantankero cantankerous. the newsroom starts now. breaking overnight, new hope. the new developments over the last few hours has been the most promising we have had. two new pings. we detected about 54 minutes or so of this pinging. consistent with the plane s black box. it will sweep over that area, take a series of still pictures, transmit it to the vessel on the surface to see what they are looking at. a positive development in the next few days if not hours. new information coming in every hour. and breaking right now i would like to take this opportunity to apologize.
broken off simply by pressure. so the weakness of the moment is no debris which is why the planes are going back over there to extend that area to see if they can find any debris. also, they will be bringing in the autonomous submersible that will go down once they have relocated that ping. richard quest, many thanks as usual. still to come in the newsroom, a high tk british ship is in the area where search crews heard the pings. renee marsh joins me with what they think the ships will do. we ll flush out what can hms echo do and will it help determine if those are truly the pingers from mh370. that s straight ahead.