Daf Hucker is right its not just the buoy data that needs to get back to the analysts/operators. The bloke down the pub also noted that when you have worked out the BW budget, (he did say he had not worked it out properly), you need to multiply the requirement by the number of platforms, simplistically for barrier ops:
Ac going home.
Ac ONSTA.
Ac coming ONSTA.
Poss Hi buoy/Lo Buoy ops.
And 2 24/7 barriers as a minimum concurrently.
Equals possible 6 platforms airborne at any one time, possibly in different theatres.
BW soon adds up appreciate not all of them will be passing all sensor data at once..
PS. Bloke down the pub told me jamming the airvehicle is hard...but the earthstations are not - SPOF.