On June 22, 2026, Chile's Undersecretariat of Telecommunications (SUBTEL) published Exempt Resolution No. 1128, which modifies the technical standards and frequency allocations for the Fixed Satellite Service. This update expands the frequency bands available for satellite ground stations (Gateways), specifically adding the 92.0–94.0 GHz, 94.1–100.0 GHz, 102.0–109.5 GHz, and 111.80–114.25 GHz bands for earth-space communications.

The regulation sets strict technical requirements for Gateway stations, mandating their installation at fixed locations with large antennas to minimize lateral radiation and reduce interference risks. The operation of these stations is limited to a small number of specific sites due to infrastructure and technical constraints.

A key aspect of the resolution is the protection of scientific and radioastronomical activities, particularly in northern Chile where the ALMA radiotelescope is located. To prevent harmful interference, authorization for non-geostationary satellite Gateways is restricted geographically, only permitted from the Coquimbo Region southwards.

The resolution also updates frequency tables and technical notes, clarifying units of measurement and references to the newly included bands. These changes aim to optimize spectrum management, support technological neutrality, and facilitate the deployment of next-generation satellite systems.

Overall, the measure has significant implications for satellite operators, equipment manufacturers, and scientific institutions, requiring adaptation to new technical and geographic requirements for compliance.

This regulation is classified as High Impact due to its mandatory and broad effect on the operation, approval, and deployment of satellite ground stations and related equipment in Chile.

Key reasons for high impact:

• Expansion and clarification of frequency bands for Fixed Satellite Service.
• Introduction of strict technical requirements for Gateway stations, including antenna specifications and site limitations.
• Geographic restrictions to protect radioastronomy, notably the ALMA observatory.
• Updates to technical standards and frequency tables affecting compliance and product approval.

Who is affected?

Satellite operators, equipment manufacturers, scientific institutions, telecom infrastructure providers, and regulatory stakeholders.

Conclusion:

Stakeholders must promptly review and adapt their processes, equipment, and compliance strategies to meet the new requirements and geographic restrictions, ensuring continued operation and regulatory conformity.