NTIA Recommends FCC Protect GPS L1 Signal from D2D Device Interference
Summary
NTIA has transmitted a formal recommendation letter to the FCC recommending that the Commission seek public comment on new or updated guidance to protect the GPS L1 signal at 1575.42 MHz from interference caused by Mobile Satellite Service providers' Direct-to-Device (D2D) user equipment operating in the 1610-1660.5 MHz frequency band. NTIA further recommends that D2D devices unable to satisfy specified emission limits be rendered incapable of operating on airplanes. The recommendation originates from NTIA's Office of Spectrum Management.
“NTIA further recommends that D2D devices unable to satisfy certain emission limits be incapable of operating on airplanes.”
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GovPing monitors US NTIA News for new telecom & technology regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 3 changes logged to date.
What changed
NTIA has issued a recommendation letter to the FCC concerning spectrum management for the GPS L1 signal. The letter recommends that the FCC initiate a public comment process regarding new or updated guidance that would protect the 1575.42 MHz GPS L1 signal from potential interference by Direct-to-Device (D2D) user equipment operated by Mobile Satellite Service providers in the 1610-1660.5 MHz frequency range. Additionally, NTIA recommends that D2D devices that cannot meet specified emission limits be designed to prevent operation on aircraft.
MSS providers manufacturing or deploying D2D user equipment and aircraft operators utilizing GPS-dependent navigation systems should monitor FCC proceedings that may result from this NTIA recommendation. While this letter does not impose immediate compliance obligations, it signals potential future regulatory attention to D2D device emission standards and their effects on GPS reliability, particularly in aviation contexts.
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Apr 28, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
D2D Recommendation Letter to the FCC
Date Friday, March 06, 2026 NTIA recommends to the FCC that it seek public comment on new or updated guidance to ensure protection of the GPS L1 signal at 1575.42 MHz from Mobile Satellite Service (MSS) providers’ Direct-to-Device (D2D) user equipment operating in 1610-1660.5 MHz. NTIA further recommends that D2D devices unable to satisfy certain emission limits be incapable of operating on airplanes.
D2D Recommendation Letter to the FCC Office Office of Spectrum Management (OSM)
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