> Routine automatic satellite communications were made approximately every hour, except for the initial period of the flight between 01:21 and 02:25, when some

> Routine automatic satellite communications were made approximately every hour, except for the initial period of the flight between 01:21 and 02:25, when some kind of power interruption to the airplane’s satellite data unit had prevented the satellite from making contact. After that, every hour or so a ground station in Perth sent a query (or “handshake”) to the plane via a geostationary satellite located over the Indian Ocean. I didn't see any comments referring to this +1hr blackout of the sat unit. This happened right after the 1.19 ATC handoff. Does anyone know if this signal could have been faked (e.g. by someone sitting in a boat in the ocean)? I assume the tx and rcv end points have some sort of private identifier.