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Inmarsat Globlal Xpress

The Inmarsat-5 satellites Global Xpress (GX) operate with a combination of fixed narrow spot beams that enable Inmarsat to deliver higher speeds through more compact terminals, plus steerable beams so additional capacity can be directed in real-time to where it’s needed.

Operating in the resilient Ka-band, while integrating seamlessly with our proven L-band network, Global Xpress allows customers across aviation, maritime, enterprise and government sectors to have reliable and assured access to high-throughput communications.

With Cisco, Inmarsat has also developed the Inmarsat Service Enablement Platform (ISEP) and the Inmarsat Gateway, which will deliver a whole new world of innovative, content-rich applications – developed by our Certified Application Partners – tailored to meet Global Xpress users’ needs.

The GX1-GX4 satellites were built by US manufacturer Boeing, based on its powerful 702HP platform. The first three GX satellites were launched between December 2013 and August 2015, with global commercial service starting in December 2015. GX4 was launched in May 2017 to provide additional capacity.

  • I-5 body– approximately 7m
  • Solar arrays– wingspan of 40.6m
  • Spot beams– 89 fixed and six steerable to direct additional capacity where it is needed
  • Launch mass– 6,100kg
  • Mission lifespan– approx. 15 years

The fifth satellite in the fleet, GX5 – a Very High Throughput Satellite (V-HTS) constructed by Thales Alenia Space – will deliver more capacity than the entire GX1-GX4 fleet combined. It launched in November 2019 to meet growing demand across Europe and the Middle East, in particular for aviation Wi-Fi and commercial maritime services.




Seamless global high-speed broadband

Global Xpress can be accessed through a portfolio of portable, fixed and mobile terminals and a wide range of service plans will allow us to meet your communications requirements, wherever your business is distributed.

Applications supported by Global Xpress

  • Voice over Internet Protocol (VoIP) support and managed VoIP service
  • Video teleconferencing
  • Branch office applications (eg VPN access, SAP, Citrix, email)
  • Real-time video and audio streaming
  • Real-time interactive collaboration and situational awareness
  • High-speed broadband for internet access
  • High-speed file transfer
  • Video surveillance
  • Inmarsat reliability

Inmarsat has been operating the most reliable mobile satellite communications network for over 40 years and quality of service is fundamental to our business. All Global Xpress ground systems and infrastructure are fully redundant. In addition, Global Xpress services are complemented by our BGAN services on the Inmarsat-4 satellites, which can deliver near 100% network availability as a back-up solution, or be your primary service for lower-bandwidth or machine-to-machine communications. Inmarsat uses commercial best practices for network security throughout our operations and customer support.

At present moment in the territory of the Russian Federation Inmarsat Global Xpress services are not provided.


GX7, 8 & 9

The next generation of Global Xpress satellites, due to be launched from 2023, represents a step change in the evolution of GX’s capabilities, capacity and agility.

Up until now the satellite industry has endured a long and expensive wait from ordering a satellite to its manufacture, launch and entry into commercial service.  Manufactured by Airbus Defence & Space, the GX7, 8 & 9 satellites will be delivered in under two years, with no costly requirement for new ground locations, enabling a faster response to growth in demand.

These software-defined satellites will be truly disruptive.  Each delivering approximately twice the total capacity of the entire current GX network, they will employ dynamic beamforming to simultaneously create thousands of independent beams of different sizes, bandwidth and power that can be reconfigured and repositioned across the globe in real time.

Existing GX customers will be able to benefit from next generation enhancements using current terminals, enjoying a significant boost in performance, as well as future-proofing their investment. Backward-compatibility will also ensure further redundancy and resilience for what is already the only fully redundant network in existence.


To optimise coverage and availability of GX services to the rapidly growing number of customers in the Arctic region, further expansion of the Global Xpress network will deliver seamless, reliable high-speed mobile broadband above 65° North.

Two multi-beam, high-throughput payloads – GX10A & 10B – will be placed in Highly Elliptical Orbits (HEO), ensuring continuous coverage and featuring the ability to direct capacity in real-time to the areas of highest demand.

The world’s first and only mobile broadband payloads dedicated to the Arctic region, GX10A & 10B will integrate seamlessly into the existing and planned GX network and will be fully compatible with current and future GX terminals.

The GX Arctic expansion is being delivered in a partnership with Space Norway and its subsidiary Space Norway HEOSAT as part of the Arctic Satellite Broadband Mission. The satellites carrying the GX payloads will be built by Northrop Grumman Innovation Systems and are scheduled for launch in 2022.

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