From the time I have heard about the AF 330 being lost this is the only thing that really bummed me. How come no one has picked up any distress signal of any sort coming from the lost airliner.
I see Atlantic capable private yachts all the time, even sailboats. All have very sophisticated onboard equipment, GPS and other communication devices capable of picking up signals. Not talking about container ships, tankers, cruise ships big and small.
Not talking about other airplanes, airliners big and small, military or civilian, even private jets.
The lost AF aircraft could not possibly be all alone and only by itself in that one particular area where it was lost?