“This successful space-airborne communication demonstration represents a breakthrough improvement in building a resilient space architecture. Achieving multi-vendor interoperability validates SDA’s leadership in the optical communication arena,” said Gurpartap “GP” Sandhoo, SDA deputy director. “We are grateful for industry’s rapid acceptance of the SDA OCT Standard and their drive to innovate—pushing the boundaries of what is possible for the warfighter today and into the future.”
“Our team achieved a proof-of-concept milestone,” said Scott Forney, president of GA-EMS. “The airborne OCT completed pointing, acquisition, tracking, and lock with the Tranche 0-compatible satellite, then transferred data packets to validate uplink and downlink capability. Our OCT is designed to close a communications gap, enabling secure, robust data transfers to support tactical and operational missions.”
GA-EMS developed the OCTs to scale across multi-domain communications for space, air, land, and sea, and mounted the system for the demonstration on a 12-inch Laser Airborne Communication turret (LAC-12) produced by General Atomics Aeronautical Systems, Inc. Precision Pointing Group. The company highlighted the adaptability of the system for use across orbital regimes and operational scenarios.
“This demonstration not just achieved the milestone for SDA-compatible communications across the air and space domains, but very importantly proved the robustness of the SDA standard for communications between OCT’s built by two different companies,” said Gregg Burgess, vice president of GA-EMS’ Space Systems division. “Under a separate SDA contract, GA-EMS designed and built two OCT systems that will fly on two GA-75 spacecraft to support future LEO airborne-to-space demonstrations for Tranche 1. Those spacecraft launch in 2026.”
Kepler’s Pathfinder satellites, part of its growing SDA-compatible constellation, are designed to provide high-capacity data services and validate advanced technologies under mission-critical conditions. The company noted their role in bridging space, air, and ground networks for both defence and commercial applications.
“By pairing Kepler’s on-orbit optical capabilities with GA-EMS’ OCT, we’ve shown what’s possible when space and aviation systems work seamlessly together,” said Robert Conrad, president of Kepler US. “This achievement builds on our milestone of establishing bi-directional space-to-ground communications with Kepler’s SDA Tranche 0-compatible satellites and reinforces how commercial space operators will be partners in delivering secure, high-throughput connectivity for the defense community and the broader commercial sector.”
