detecting it. what complicates matters is the signal dies down as the battery stops. it could die august together. it could happen april 6th, if it hasn t already. event b, in the event it stopped emitting that signal. they have equipment that will map the ocean floor. take a look what they believe it will be able to do in assisting them in finding these black boxes. we do have maybe a week or two left on this pinger on the black box. if that runs out, you then have to use a site scan sonar. we ve put one of those on an australian ship. those two pieces of equipment can work sequentially there on that on the australian ship. but like i said, without good visual confirmation of debris, which we really have not had