Originally Posted by
Ganzic
I thinks it's an expensive option...
To have telemetry data streamed live via satcom.
Not when you have an 'always on' link you have the bandwidth and then you have to compare it to the cost of retrieval of an often damaged DFDR/CVR. I have always thought that if these costs were levied on the aircraft operators then streaming DVDR/CVR would be operational now. The costs of search and retrieval of the recorders would bankrupt most airlines. Why should tax payers in a foreign country be liable to pay the sometimes huge costs for recovery of your airline's DFDR/CVR?
Late addition: DFDR data rates are 'up to 256 12bit words per second' - or around 3K bps. That is one '10 millionth' of the potential bandwidth of a connection on INMARSAT's new Global Express SATCOM just tested at 330Mbps.