In February 2002, the FCC allowed limited use of ultra-wideband (UWB) techniques in the 3.1–10-GHz spectrum.
Notes on verification
Confirmed by multiple independent sources including FCC's own First Report and Order, Federal Register documentation, and academic sources, all consistent on date, agency, and frequency range. [tier=gold indep_score=0.95 clusters=3 claim_tier=notable]
Sources
- Open Spectrum (seed:technology_and_ai)
- https://www.microwavejournal.com/articles/653-ultra-wideband-signal-generation (corroboration)
- https://www.federalregister.gov/documents/2003/04/22/03-9879/ultra-wideband-transmission-systems (corroboration)
- https://dspace.mit.edu/handle/1721.1/37895 (corroboration)