CNN CNN Special Report April 7, 2014 05:03:00
Away from the first one and then when you get that second one, it creates an x. then you have the two. where the x crosses in the middle is your indication of where the point may be. you then continue on, hopefully get a third. and if that third line of bearing crosses in the middle of the first two, you now have three lines of bearing all meeting in the same spot, then that's a pretty positive indication of where the signal is coming from. so that's the goal as this towed pinger locator moves across the water. >> so commander william, just to clarify, you pick up the signal, and you basically...