What, an audio downlink occupying 30 times less bandwidth than the pred video feed that is routinely sent across satlink
This shows just how dangerous a little knowledge is - Base assumption - Sonobuoys are analogue ie "only" need "audio downlink".
Wrong - most buoys are now digital and directional so you need a lot more bandwidth than you think.
OK I've no idea what bandwidth you need for the "pred video feed" but for 64 buoys you need one heck of a lot