47 CFR 73.1670 - Auxiliary transmitters.

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§ 73.1670 Auxiliary transmitters.
(a) A licensee of a broadcast station may, without further authority from the FCC, install and use with the main antenna system one or more auxiliary transmitters for the following purposes:
(1) The transmission of regular programs upon failure of the main transmitter.
(2) The transmission of regular programs during maintenance or modification of the main transmitter.
(3) Emergency broadcast system operation.
(4) The transmission of regular programs by an AM station authorized for Presunrise (PSRA) and/or Postsunset (PSSA) operation.
(5) The transmission of tests to determine the operating condition of the auxiliary transmitter or auxiliary antenna.
(6) For testing, upon the request of representatives of the FCC.
(b) Authorization to install an auxiliary transmitter for use with other than the main antenna or authorized auxiliary antenna must be obtained by filing an application for a construction permit on FCC form 301 (FCC form 340 for noncommercial educational stations).
(c) The following technical and operating standards apply to auxiliary transmitters:
(1) The auxiliary transmitter may be operated on only the station's authorized frequency and within the required carrier frequency departure tolerance for the type of station.
(2) The carrier frequency of the auxiliary transmitter must be measured as often as necessary to ensure that it is maintained within the prescribed tolerance.
(3) When using an auxiliary transmitter, the operating power may be less than the authorized power but may not exceed the authorized power within the permitted tolerance for the type of station. If operation with an auxiliary transmitter at reduced power continues for a period exceeding 10 days, the FCC in Washington, DC must be notified. (See § 73.51, AM; § 73.267, FM; § 73.567, NCE-FM; and § 73.663, TV).
(4) Normal operator requirements apply to the operation of the auxiliary transmitter.
After January 1, 1979, new licenses will not be issued nor will existing licenses be renewed for auxiliary transmitters that are operated into the main antenna system.
[43 FR 53741, Nov. 17, 1978, as amended at 44 FR 22740, Apr. 17, 1979; 48 FR 36463, Aug. 11, 1983; 48 FR 42960, Sept. 20, 1983; 48 FR 44806, Sept. 30, 1983; 50 FR 32417, Aug. 12, 1985; 51 FR 32088, Sept. 9, 1986]

Title 47 published on 2013-10-01

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  • 2014-09-15; vol. 79 # 178 - Monday, September 15, 2014
    1. 79 FR 54916 - Radio Broadcasting Services; Noyack and Water Mill, New York
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      Final rule; application for review.
      Effective September 15, 2014.
      47 CFR Part 73

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United States Code

Title 47 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 47 CFR 73 after this date.

  • 2014-09-17; vol. 79 # 180 - Wednesday, September 17, 2014
    1. 79 FR 55742 - Petition for Reconsideration of Action in Rulemaking Proceeding
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      Petition for reconsideration.
      Oppositions to the Petition must be filed on or before October 2, 2014. Replies to an opposition must be filed on or before October 14, 2014.
      47 CFR Part 73