Originally Posted by
awblain
It's possible that the BBC might have learned that there is Doppler information available from the spectrum of the ping signal, which is perhaps possible.
Then again, on their "what we known" page
BBC News - Missing Malaysia plane: What we know their 777s appear to be -300s with 6 doors.
if they are talking about the theory of pinging I agree with the comments of rubbish, however I like your thinking, they have been told it but don't realise why