47 C.F.R. § 25.289
Protection of GSO networks by NGSO systems
(a) Unacceptable interference. Unless otherwise provided in this chapter, an NGSO system licensee must not cause unacceptable interference to, or claim protection from, a GSO FSS or GSO BSS network.
(1) An NGSO FSS licensee operating in compliance with the applicable equivalent power flux-density limits in Article 22, Section II of the ITU Radio Regulations (incorporated by reference, § 25.108) will be considered as having fulfilled this obligation with respect to any GSO network.
(2) [Reserved]
(b) Coordination. GSO and NGSO satellite operators must coordinate in good faith the use of commonly authorized frequencies in the 10.7-12.7, 17.3-18.6, or 19.7-20.2 GHz bands in the United States.
Notes of Decisions
Cited in 3
cases (3 in the last 5 years), 2022–2024 · leading case: Viasat, Inc. v. FCC, 47 F.4th 769 (D.C. Cir. 2022).
Viasat, Inc. v. FCC, 47 F.4th 769 (D.C. Cir. 2022). “47 C.F.R. § 25.289 . More specifically, NGSO systems must operate within power limits set by the International Telecommunications Union (ITU), a United Nations agency responsible for addressing signal interference internationally.”
Int'l Dark-Sky Ass'n, Inc. v. FCC, 106 F.4th 1206 (D.C. Cir. 2024). “47 C.F.R. § 25.289 . Interference is measured in terms of “power flux-density,” which must remain below set limits.”
Viasat, Inc. v. FCC (D.C. Cir. 2022). “47 C.F.R. § 25.289 . More specifically, NGSO systems must operate within power limits set by the International Telecommunications Union (ITU), a United Nations agency responsible for addressing signal interference internationally.”
Annotations are extracted automatically from the opinions in the
Syfert caselaw corpus and ranked by authority, recency, and
treatment. Dots show Syfertize treatment of the citing case itself.