CNN Legal View With Ashleigh Banfield April 7, 2014 16:09:00
The order of a mile, maybe a little bit longer. if you're on the surface moving across this, you would take the ship directly over the pinger. you might get two hours. >> two hours of listening. if you are starting to come back over here -- >> this is only a mile. now you're much shorter. >> now it's 15 minutes of listening. this is effectively if the pinger, which is in the center, deep down nin the ocean, is sending up a perfect circ circumference of cone in the signal. >> the symmetry, how the shape of the bottom is. you can have reflections. you can have almost shadowing. >> this should be...
Source: archive.org