The vessel carried 685 containers and had on board an EPIRB, which transmits distress signals.
An initial ping was received Thursday morning, but no new ones have followed, according to Chief Petty Officer Ryan Doss.
He said it gave an initial location but did not continue transmitting, possibly because of bad weather.
This is the Sat beacon I mentioned
Might have pinged during a capsize. Most are set to begin signaling when they detach from their mount. Either float out during a sinking or fall out during a capsize. If it sunk it should still be pinging. Capsize -it probably went down with the ship.
It was top heavy and listing in a hurricane. The captain should have called for his crew to be rescued.