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The device to 600 feet. it's all going to be about how the sound prop gates in the water. it has to do with the fundamental properties of the ocean, the temperature, the sal lynnity. it's hard without understanding the water column right at that point to understand how far, what kind of range it can detect that. but it is -- the device that we manufacture is for shallow water applications. >> thomas altshuler, thanks for clarifying. we appreciate it. >> thank you. still to come, nic robertson tells us about a developing twist in the disappearance of flight 370. nic? >> reporter: senior malay...
Source: archive.org