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Satellite Spectrum Initiative


Fixed Satellite Service (FSS) applications have been an important part of modern military communications for decades. However, increasingly, dedicated military satellite networks are being augmented by commercial services, primarily Demand Assigned Multiple Access (DAMA) controlled networks that offer the user total control of the space link.

With flexible operational services and compact ground terminals, satellite communications offer attractive solutions for military users in theatre and on global links. When deployed in theatre, satellite communications offer terrain independent communications, flexible networking and direct link to the final destinations – without reliance on radio relays. A requirement for increasingly higher data rates on the battlefield – available at all times – is likely to be met by a variety of FSS applications, tailored to the specific requirements of the military.

Future concepts currently under consideration call for the deployment of a global grid of communications satellites that could support the soldier, enabling flexible command and control of task forces anywhere in the world. Such networks will seamlessly integrate the local combat net radio with the strategic global network, facilitating effective access to all levels of command and military operations anywhere in the world.

Such terminals are designed to work with a wide range of military and commercial satellite services, including wideband commercial Low Earth Orbit (LEO), Medium Earth Orbit (MEO), and Military Geosynchronous Earth Orbit (GEO) satellites, as well as Protected (Advanced EHF) Narrowband Satellite communications.

For mobile operation, SATCOM terminals using commercially available Ku-band already provide data rates up to 512 Kbps on the move. When a vehicle comes to a halt, performance increase dramatically to two, and up to five Mbps. Future SATCOM on the move technologies are currently in development for commercial and military applications. Such systems are part of the WIN-T program, which will utilize future Ka band satellites and dedicated terminals to provide 1Mbps continuous data rates to command elements on the move.

In the UK, the Skynet-5 military satellite is being evaluated as a private venture. The program is under development and the system is expected to enter service by 2005. The French Syracuse III military satellite constellation is also offered for rent, to the German government and Army. Belgium and the Netherlands have also expressed interest in such arrangements. Israel is licensing commercial traffic on the Israeli Amos-2 and other communications satellites, and is also planning to deploy a dedicated military SATCOM later in the decade. NATO is still utilizing its NATO IV system, which is due for replacement in the near future. Candidates for such replacement are Syracuse III, Skynet-5 and Milstar. Turkey is planning a large scale investment in space, including enhancement of its satellite communications infrastructure.