US Making Its Own EPFD Limits Would Complicate Satellite Operations: SES
SES continues to lobby FCC leadership to keep the existing equivalent power flux density (EPFD) power limits on non-geostationary orbit (NGSO) satellites. In a filing posted Friday in docket 25-157 to recap a meeting with FCC Commissioner Olivia Trusty, SES reiterated its arguments that its EPFD concerns "are not hypothetical" (see 2511210024), as it took more than a year to isolate and resolve harmful interference from an NGSO system operating well in excess of the EPFD limits.
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SES is open to "thoughtful optimizations to the existing EPFD framework" that protect geostationary satellites, it said, suggesting that the FCC could broker discussions among stakeholders that could help build consensus at the ITU for changing the ITU EPFD rules. Establishing rules for the U.S. outside the international framework "could lead to operational and compliance complications for inherently global NGSO systems" and degraded GSO satellite service in the U.S., SES warned.
A change to the EPFD framework is widely expected (see 2511250048).