I have wondered since the outset why there are no ACARS alerts via Satellite between the last two on the ramp at RIO, and the ones beginning at 0210.
Wouldn't there be at least a few? 447 was no virgin, and she must have had reportable defects prior to "The Sky is falling" at 0210. Or is radio abandoned at the intervals I would question?? Irrespective of antenna issues, what explains the dearth of ACARS coms??