Spectrum Sharing Rules for NGSO Fixed-Satellite Service Systems

In this document, the Federal Communications Commission (FCC or Commission) clarifies the methodology to be used in compatibility analyses by non-geostationary satellite orbit (NGSO) fixed-satellite service (FSS) system licensees. The Second Report and Order adopts specific degraded throughput methodology criteria that NGSO FSS systems licensed in a later processing round must include in compatibility analyses, in absence of a coordination agreement, to demonstrate that they can operate compatibly with and protect NGSO FSS systems authorized in earlier processing rounds. The Second Report and Order clarifies these methodologies to promote market entry, regulatory certainty, and spectrum efficiency through good-faith coordination. The Commission also adopts an Order on Reconsideration dismissing in part and, on alternative and independent grounds, denying a petition for reconsideration.