GBS Concept & Elements
Pentagon contracts occasionally refer to the Global Broadcast Services (GBS), a system linked to the Wideband SATCOM program. A variant was first fielded in Bosnia during 1996, and special nodes were also set up in the aftermath of Hurricane Katrina. It sounds almost like a form of global satellite TV – which is close, but not quite right. GBS is not intended to replace existing MILSATCOM (MILitary SATellite COMmunications) systems in any way. Instead, GBS uses a form of “push and store” to distribute high-bandwidth information for local relay, thereby saving critical two-way military satellite communications systems from having to handle every field request.
The other thing that makes GBS so attractive is the ability to provide high-volume data directly into 18-inch antennas, allowing streaming to and storage in devices that can move with units in the field. The GBS “pushes” a high volume of packaged data to these widely dispersed, low-cost receive terminals, whose function resembles the set-top smart cable TV storage box or TiVO used at home.
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