The change in available airwaves, which were freed up by the conversion of television signals from analog to digital, constitutes the first significant block of spectrum made available for unlicensed use by the F.C.C. in 20 years.
News
F.C.C. Opens Unused TV Airwaves to Broadband
Thu, 09/23/2010 - 8:23pm
WASHINGTON — The Federal Communications Commission approved a proposal on Thursday that would open vast amounts of unused broadcast television airwaves for high-speed wireless broadband networks and other unlicensed applications.

