I can't comment on the techie stuff, but if your question is can you use the scanner on board to listen to ATC then you will not be able to do that legally. If you want to listen to ATC throughout a flight then you should fly United, they have it on Channel 9. Only once have I heard them leave it on 123.45 across the Atlantic, and that was by far the best part
So any United captains out there, thanks for turning it on in the first place, and listening to the baseball/cricket chat is very entertaining
