47 CFR 73.1665 - Main transmitters.

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§ 73.1665 Main transmitters.
(a) Each AM, FM, TV and Class A TV broadcast station must have at least one main transmitter which complies with the provisions of the transmitter technical requirements for the type and class of station. A main transmitter is one which is used for regular program service having power ratings appropriate for the authorized operating power(s).
(b) There is no maximum power rating limit for FM, TV or Class A TV station transmitters, however, the maximum rated transmitter power of a main transmitter stalled at an AM station shall be as follows:
Authorized power Maximumrated transmitter power (kW)
0.25, 0.5, or 1 kW 1
2.5 kW 5
5 or 10 kW 10
25 or 50 kW 50
(c) A licensee may, without further authority or notification to the FCC, replace an existing main transmitter or install additional main transmitter(s) for use with the authorized antenna if the replacement or additional transmitter(s) has been verified for compliance. Within 10 days after commencement of regular use of the replacement or additional transmitter(s), equipment performance measurements, as prescribed for the type of station are to be completed.
Note to paragraph (c):
Pending the availability of AM broadcast transmitters that are approved or verified for use in the 1605-1705 kHz band, transmitters that are approved or verified for use in the 535-1605 kHz band may be utilized in the 1605-1705 kHz band if it is shown that the requirements of § 73.44 have been met. Verification or FCC approval of the transmitter will supersede the applicability of this note.
[43 FR 53741, Nov. 17, 1978, as amended at 47 FR 8590, Mar. 1, 1982; 47 FR 28388, June 30, 1982; 49 FR 4000, Feb. 1, 1984; 51 FR 18451, May 20, 1986; 56 FR 64872, Dec. 12, 1991; 63 FR 36604, July 7, 1998; 65 FR 30004, May 10, 2000]

Title 47 published on 2013-10-01

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  • 2014-06-10; vol. 79 # 111 - Tuesday, June 10, 2014
    1. 79 FR 33118 - Radio Broadcasting Services; Various Locations
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      Final rule.
      Effective June 10, 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.

  • 2014-07-02; vol. 79 # 127 - Wednesday, July 2, 2014
    1. 79 FR 37705 - Incentive Auction Task Force Seeks Comment on Staff Analysis Regarding Pairwise Approach To Preserving Population Served
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      Proposed rule; request for comments.
      Comments must be filed on or before July 2, 2014 and reply comments must be filed on or before July 22, 2014.
      47 CFR Parts 1, 27, and 73