(March 13, 2014 at 12:24 pm)Moros Synackaon Wrote: As a futher note, over the water even in ideal circumstances, there are few ground stations if any that can receive such data.
Very true. Radio communications are (mostly) restricted to line of sight (particularly VHF and UHF). Yeah, it's possible to bounce LF/VLF/ULF signals off of the ionosphere, but it is NOT reliable and aviation doesn't use *LF for good reason.
Absent a satellite uplink or some kind of repeater system, transoceanic flights will have significant periods of communications blackout. Whether that applies in this particular case, I have no idea.