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AM Broadcasting Energy-Saving MDCL Waivers

AM broadcast station licensees may now request authority to use energy-saving Modulation Dependent Carrier Level (MDCL) technologies.  These technologies are briefly summarized in the Commission's September 11, 2011 Public Notice.

Letter requests should be directed to:

MDCL Waivers
Federal Communications Commission
Audio Division, Media Bureau
445 12th Street SW, Room 2-B450
Washington, DC 20554

The letter request should include the station's call sign, station facility ID number, and a request for waiver of Section 73.1560(a) of the Commission's rules, to use MDCL technology.  A copy of the request should be e-mailed to Susan.Crawford@fcc.gov.

A list of AM broadcast stations authorized to use MDCL technology, in Excel format, is available here.  This list is updated as needed.


Information about AM and FM broadcast radio stations is available at the Audio Division on the FCC's website.  Information about TV stations is available at the Video Division.

FCC > Media Bureau > Audio Division

Updated: May 13, 2014
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