Six people died.
The radio beacon was off by one number when it was added to a federal database by a National Oceanic and Atmospheric Administration contractor.
A federal satellite search-and-rescue official testified that when the signal was received at 5:40 a.m., there was no word on which boat it was or who to call on shore.
Rescuers couldn't zero in on the boat until a lower-orbiting satellite picked up a signal at 7:07 a.m.
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