The tests provided the first live demonstration of airborne communication with the O3b MEO satellites and included seamless handovers between MEO and GEO satellites during flight.
The flights took place September 17-18 over South Florida and the Caribbean Sea using a commercially available ThinKom Ka2517 phased-array airborne antenna mounted on a Gulfstream G-III test aircraft. With the Hughes JUPITER Aeronautical system and ModMan, the antenna demonstrated the ability to achieve high data throughput rates while seamlessly switching among successive O3b MEO satellites, as well as transfers between O3b and SES’ GEO constellations.
The Ka2517 achieved downlink error-free data throughput rates in excess of 265Mbps, with beam switching speeds of less than one second, while automatically resolving adjacent satellite interference (ASI) issues. Based on ThinKom’s patented phased-array VICTS technology, the Ka2517 is an airborne antenna designed to communicate through satellites in low, medium and geostationary orbits. The low-profile antenna radome provides near-zero aeronautical drag in flight and supports global coverage including polar and equatorial latitudes. The field-proven Ka2517 is currently in commercial production, and units are in operational service on U.S. government aircraft.
SES’ high-throughput O3b MEO constellation has positively impacted millions of people with low-latency, high-performance data connectivity services and has enabled SES Networks, SES’ business unit focused on data solutions, to offer more capacity, enhanced coverage, increased efficiencies and greater flexibility to its customers.
ThinKom CTO Bill Milroy said this is the first in-flight demonstration of an aeronautical antenna communicating across a MEO-GEO hybrid satellite network. The Ka2517 with the JUPITER ModMan met or exceeded all test parameters for spectral efficiency, data throughput, beam agility, switching speeds, ASI mitigation, low-angle performance and inter-constellation roaming. The demonstration further establishes that ThinKom has the only proven ‘no compromise‘ antenna solutions that can support seamless global satellite communication in the air with automatic roaming among GEO, LEO and MEO constellations.
Reza Rasoulian, VP, Hughes Network Systems, LLC (HUGHES), added that the test by ThinKom underscores the effectiveness of the Hughes JUPITER System for both MEO and GEO connectivity, and, when combined with a high-quality antenna such as the ThinKom Ka2517, to deliver superior spectral efficiency, link availability and performance.
Elias Zaccack, EVP, Global Sales, at SES Networks, noted that these successful demo tests are raising the bar for in-flight connectivity and the connected passenger experience. The seamless integration of our MEO and GEO satellite networks will provide SES customers with unprecedented redundancy, higher connectivity speeds and a whole new level of operational models. The company is excited to have achieved this milestone together with long-term partner Thales, as this is yet another example of how mutual collaboration continues to bring innovative connectivity solutions with unmatched performance.
Pascal Homsy,EVP, Telecommunications Business Line, Thales Alenia Space, commented that these in-flight tests performed together with SES, ThinKom and Hughes are an outstanding demonstration of the seamless connectivity through MEO and GEO satellite systems. Thales Alenia Space was particularly pleased to participate in this worldwide first, using the O3b satellite constellation the company manufactured for SES.
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