21.   The captain and another crewman jumped into the water in life jackets and activated an emergency beacon, Anderson said.

22.   The last radio signal was heard from emergency beacons aboard the boat on Tuesday.

23.   The rescue center continued to receive intermittent readings of signals from the emergency beacon, which was still active.

24.   The rescue center also received a satellite reading from the emergency beacon, which was still active.

25.   The South African Air Force said a signal received from a life jacket emergency beacon meant there might be survivors.

26.   The South African air force said a signal received from a life jacket emergency beacon indicated there might be survivors.

27.   The system uses weather satellites to receive signals from emergency beacons carried by ships, aircraft and individuals on the ground.

28.   The spokesman said the emergency beacons would assist the search crew in pinpointing its position if they continued to operate long enough for the aircraft to reach the area.

29.   An emergency beacon from the yacht began transmitting Tuesday, but coastguards learned it had been lost overboard when the vessel was dismasted.

30.   The pair activated an emergency beacon Saturday night and Australian Search and Rescue called in local Northern Territory police.