What is the target market for Inmarsat Fleet F77?

The number “77” relates to the approximate diameter of the antenna ( i.e.70-85cm). This places the Fleet F77 in the larger, deep-sea vessels market served until now by Inmarsat A and B. The first Fleet
family member, F77, is the premier service in this portfolio – as with Inmarsat A and B, the service includes Global maritime coverage, differentiating from other services such as Mini-M.