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This paper compiles and evaluates services that use commercial communication satellites for possible usage by the Navy. It also addresses rules and regulations associated with these services. The main conclusions that can be drawn from the evaluation are: i) in order to provide communications from mobile earth stations (e.g., Naval planes or vessels), it is necessary to use MSS frequencies to comply with ITU's rules and regulations and ii) the MSS frequencies available commercially (now or in the foreseeable future) are very limited in bandwidth (only available at VHF/UHF, L-Band and S-Band) and are all used for "off-the-shelf services that provide only voice and low bit rate (<_ 64 kbps) data communications.

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