the power buttons and out of this box wave computer set up that graphically represents the signal that you re hearing from the beacon. reporter: then, a team on deck deploys phoenix s other assets. an autonomous underwater vehicle often using a lawn mower search pattern. this is the machine that can recover it, this remotely operated vehicle that can go very deep in the ocean with manipulator arms and can pick up all sorts of devices. it can recover the black box for air france flight 447. with flight 370s battery going down each day, every moment is critical. until they recover this data, it s still a mystery. they will not know what happened. reporter: without a confirmed sighting, why not blanket an