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During the design process of the South African Sumbandilasat satellite, a requirement was identified for a store-and-forward type on-board communications payload. This will allow for connectivity with remote rural ground stations. Due to other systems design constraints, these communications were limited to a single, half-duplex channel with 9600 baud capacity. This experience highlighted the requirement for a multichannel payload, to cater for the rising need for higher bandwidth data transfer to- and from remote parts of Africa.
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