On February 26, 2026, Eviden (an Atos Group brand) announced the successful deployment of an advanced Satellite Communications Spectrum Monitoring System (SEFD) for the Hellenic Commission for Telecommunications and Posts (EETT).
The system is the core component of “EOS” (HΩΣ), a new high-tech satellite monitoring station in Greece dedicated to the supervision and control of the frequency spectrum used by geostationary (GSO) satellite networks. The project was awarded through an international public tender and co-financed by the European Regional Development Fund alongside Greek national resources.
Strengthening National Regulatory Oversight
As the Independent Administrative Authority of Greece, the EETT is tasked with ensuring the efficient use of satellite orbital resources and preventing harmful interference. The “EOS” facility provides the EETT with a centralized hub to monitor satellite-to-ground station links across the Mediterranean region. By deploying this capability, Greece aims to foster a more stable environment for research centers and commercial operators utilizing satellite broadband networks, ensuring that spectrum usage adheres to both national and international ITU (International Telecommunication Union) regulations.
Technical Architecture: The SkyMon Solution
The heart of the “EOS” station is Eviden’s SkyMon monitoring suite, integrated in partnership with Edil Hellas SA. The installation features a sophisticated array of hardware and software designed for continuous, autonomous operation.
- RF Infrastructure: A complex Radio Frequency system connecting high-gain reflector antennas to measurement equipment.
- Geolocation Capability: The system includes a transmitter geolocation module, allowing the EETT to pinpoint the exact origin of unauthorized or interfering signals.
- Automation & Storage: State-of-the-art data recording and visualization software that allows for long-term spectrum trend analysis.
- Resiliency: An independent power supply system ensures the facility remains operational 24/7, providing uninterrupted monitoring of the GSO arc.
Rationale: Combating Orbital Congestion
The deployment of SkyMon in Greece reflects a broader global trend of national regulators modernizing their ground infrastructure to keep pace with increased orbital density. With the proliferation of high-throughput satellites (HTS), the risk of signal “collisions” and intentional or unintentional jamming has escalated. For the EETT, the automated nature of SkyMon reduces the manual workload of engineers while increasing the probability of detecting transient interference events that could disrupt critical communications.
Outlook for Greek Space Infrastructure
The completion of the “EOS” station marks a significant step in Greece’s regional leadership in electronic communications. Beyond simple monitoring, the facility is expected to act as a catalyst for innovation, providing “ground-truth” data to Greek research institutions and space startups. Looking forward, the EETT may expand the station’s capabilities to include the monitoring of non-geostationary (NGSO) constellations as LEO deployment continues to accelerate across European airspace.
