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Ｉｎｍａｒｓａｔ正在酝酿研制１９９８～２０００年开始使用的手持式个人卫星电话。本文阐述了一些主要系统设计方面的问题，同时介绍了卫星和移动设备的特性。
Inmarsat is working on a hand-held personal satellite phone to be used from 1998 to 2000. This article describes some of the major system design issues, along with the characteristics of satellites and mobile devices.