§  74.501   Classes of aural broadcast auxiliary stations.

   (a) Aural broadcast STL station. A fixed station for the transmission
   of aural program material between the studio and the transmitter of a
   broadcasting station other than an international broadcasting station.

   (b) Aural broadcast intercity relay (ICR) station. A fixed station for
   the transmission of aural program material between radio broadcast
   stations, other than international broadcast stations, between FM radio
   broadcast stations and their co-owned FM booster stations, between
   noncommercial educational FM radio stations and their co-owned
   noncommercial educational FM translator stations assigned to reserved
   channels (Channels 201 to 220), between FM radio stations and FM
   translator stations operating within the coverage contour of their
   primary stations, or for such other purposes as authorized in
   §  74.531.

   (c) Aural broadcast microwave booster station. A fixed station in the
   broadcast auxiliary service that receives and amplifies signals of an
   aural broadcast STL or intercity relay station and retransmits them on
   the same frequency.

   [ 28 FR 13716 , Dec. 14, 1963, as amended at  49 FR 7129 , Feb. 27, 1984;
    53 FR 4169 , Feb. 12, 1988;  55 FR 50692 , Dec. 10, 1990;  57 FR 41111 ,
   Sept. 9, 1992]

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