CNN CNN Newsroom January 3, 2015 17:35:00
This point. >> okay. there are at least two u.s. warships in that area. the "u.s.s. ft. worth" that just arrived. and you talk about the sonar capabilities. the sonar, we understand from which ship actually located four more items. how might the sonar help detect the black boxes? and would that typically be the way in which those black boxes are located? >> well typically, you don't use sonar to detect the black box, or the sonar or the ping from the black box should show up on the sonar record. so you'll see a line across the image that would indicate that the pinger is close by. then what yo...
Source: archive.org