Federal Communications Commission
Before the
Federal Communications Commission
Washington, D.C. 20554
In the Matter of
Digital Audio Broadcasting Systems
And Their Impact on the Terrestrial
Radio Broadcast Service
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MM Docket No. 99-325
ERRATUM
Released:  February 2, 2010
By the Chief, Media Bureau:
On January 29, 2010, the Media Bureau released an Order, DA 10-208, in the above-captioned 
proceeding.  This Erratum corrects § 73.404(a) located in the Final Rule Changes of Appendix C to read 
as follows:
§ 73.404 Interim Hybrid IBOC DAB Operation.
(a) The licensee of an AM or FM station, or the permittee of a new AM or FM station which has 
commenced program test operation pursuant to § 73.1620, may commence interim hybrid IBOC 
DAB operation with digital facilities which conform to the technical specifications specified for 
hybrid DAB operation in the First Report and Order in MM Docket No. 99-325, as revised in the 
Media Bureau’s subsequent Order in MM Docket No. 99-325.  FM stations are permitted to 
operate with hybrid digital effective radiated power equal to one percent (-20 decibels below 
carrier (dBc)) of authorized analog effective radiated power and may operate with up to ten 
percent (-10 dBc) of authorized analog effective radiated power in accordance with the 
procedures set forth in the Media Bureau’s Order in MM Docket No 99-325.  An AM or FM 
station may transmit IBOC signals during all hours for which the station is licensed to broadcast.
FEDERAL COMMUNICATIONS COMMISSION
William T. Lake, Chief
Media Bureau