Site Status Archive

  • September 1, 2011: The allocation tables have been updated to the FCC's August 30, 2011 release, implementing minor FCC staff corrections. Changes are documented in the FCC Allocation History File.
  • June 2, 2011: The allocation tables have been updated to the FCC's June 2, 2011 release. Only one very minor change, to footnote US228, has been made in this latest version. Changes are documented in the FCC Allocation History File.
  • May 10, 2011: The allocation tables have been updated to the FCC's May 6, 2011 release. Changes are documented in the FCC Allocation History File.
  • January 7, 2011: The FCC's major editorial rewrite of the Table of Frequency Allocations has now been incorporated.
  • July 17, 2010: Added a page with useful links to spectrum-related websites.
  • July 17, 2010: Allocation database has been updated to the July 15, 2010 version. Changes are documented in the FCC Allocation History File.
  • June 16, 2010: Allocation database has been updated to the June 10, 2010 version. Changes are documented in the FCC Allocation History File.
  • June 12, 2010: Common frequencies/channels feature has now been expanded to all bands. Additional frequencies/channels are still being added, and Federal government frequencies/channels are still to be added.
  • April 16, 2010: Default content display options may now be set through the frequency search page.
  • March 30, 2010: Complete Title 47 CFR rule parts (the FCC rules) have been added under the Reference menu. Also included are a quick form for retrieving a specific section of the rules, links to related rules such as the NTIA Manual and the FAA tower lighting regulations, and a concise cross-reference to the FCC rules.
  • March 29, 2010: A feedback form has been added. Give us your thoughts, report an error, or submit a request to reproduce UnwantedEmissions.com content.
  • March 27, 2010: Each footnote referenced in the allocation table cells is now bookmarked to the footnote's text farther down the page.
  • February 4, 2010: Allocation database has been updated to January 25, 2010 version. Changes are documented in the FCC Allocation History File.
  • February 1, 2010: Links to relevant band plans are now a content option when querying by frequency.
  • January 29, 2010: Frequency queries now return band use information from the NTIA Federal Spectrum Use Summary for federal government bands above 30 MHz.
  • January 27, 2010: Users may now customize content when querying by frequency.
  • January 26, 2010: A table of engineering data is now an option when querying by frequency.
  • January 24, 2010: Allocation searches by footnote are now available.
  • January 17, 2010: The allocation database has been updated to the January 15, 2010 FCC table.
  • December 29, 2009: Links to relevant FCC spectrum auctions and rule parts have been added to U.S. non-federal-government allocation queries.
  • December 28, 2009: Advanced service search options are being added (for example, searching for bands shared by two services).
  • December 18, 2009: Allocations may now be queried by service.
  • October 30, 2009: Allocation data updated to FCC allocation table published October 15, 2009.