Originally Posted by
manrow
Have we yet reached the point where the recorders are no longer functioning?
Theoretically no.
There have been reports that the French Navy has heard something. Now I am wracking my brains to remember what is needed next.
For a single point detection you will have an approximate bearing and signal strength. Given the short maximum range the probable position will be quite small.
Detecting from a different position with then enable them to reduce the area of probability and so on.
An alternative and more accurate method would be simultaneous detection of a pulse from 3 hydrophones. The position could them be determined through hyperbolic reduction. You would get a position within 200-300 metres.