C-Band Alliance Proposes FSS Earth Station Protections
To protect fixed satellite service earth stations from 5G interference in the C band, the C-Band Alliance is proposing a number of steps. They include a 20 MHz guard band at 3880-3900 MHz and a 5G aggregate power density limit,…
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CBA CEO Bill Tolpegin told FCC Office of Engineering and Technology Chief Julius Knapp, said an FCC docket 18-122 posting Tuesday. It said protections will be based on earth station locations, and there should be an additional 30-day registration window for them after an order. It said any protections for earth stations registered after that 30-day window would then need an FCC waiver and agreement with the local flexible-use provider. It said antennas with diameters of between three and 13 meters and elevation angles of five degrees or more would be protected in the whole 3900-4200 MHz band and across the full geostationary arc. "A very limited number" of earth stations would be grandfathered in the 3700-3900 MHz band, requiring larger exclusion zones. All incumbent earth stations would receive 3900-4200 MHz band-pass filters. In a separate filing, the group and members Intelsat and SES recapped a meeting with aides to FCC Chairman Ajit Pai to discuss outreach to interested stakeholders.