Inmarsat-B, JUE-310B
Global, multi-media communications service - telephone, telex, facsimile and data networks
Digital voice communication of superior quality and high security is available at low communication charges
Cost-saving High-Speed Data (HSD) communication available (facsimile and data at 9,600bps)

Inmarsat-C with EGC Receiver, JUE-75C
Two-way telex message and data transmissions via the international telex network and terrestrial data networks
Reception of SAFETY NET (messages on maritime safety) and FLEET NET(commercial messages) in EGC mode
Compact, lightweight design

Inmarsat-M, JUE-200M
Simple operation for international telephone, facsimile and data calls
Reliable satellite tracking by a beam-steerable phased array antenna system with lightweight,simple mechanism
EME and IME connected via a single coaxial cable