§ 73.665   Use of TV aural baseband subcarriers.

   Licensees  of  TV  broadcast  stations  may  transmit, without further
   authorization from the FCC, subcarriers and signals within the composite
   baseband for the following purposes:

   (a) Stereophonic (biphonic, quadraphonic, etc.) sound programs under the
   provisions of § § 73.667 and 73.669.

   (b) Transmission of signals relating to the operation of TV stations, such
   as relaying broadcast materials to other stations, remote cueing and order
   messages, and control and telemetry signals for the transmitting system.

   (c)  Transmission of pilot or control signals to enhance the station's
   program  service  such  as (but not restricted to) activation of noise
   reduction decoders in receivers, for any other receiver control purpose, or
   for program alerting and program identification.

   (d) Subsidiary communications services.

   [ 49 FR 18105 , Apr. 27, 1984]

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