47 CFR 74.736 - Emissions and bandwidth.

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There are 7 Updates appearing in the Federal Register for 47 CFR Part 74. View below or at eCFR (GPOAccess)
§ 74.736 Emissions and bandwidth.
(a) The license of a low power TV, TV translator, or TV booster station authorizes the transmission of the visual signal by amplitude modulation (A5) and the accompanying aural signal by frequency modulation (F3).
(b) Standard width television channels will be assigned and the transmitting apparatus shall be operated so as to limit spurious emissions to the lowest practicable value. Any emissions including intermodulation products and radio frequency harmonics which are not essential for the transmission of the desired picture and sound information shall be considered to be spurious emissions.
(c) Any emissions appearing on frequencies more than 3 MHz above or below the upper and lower edges, respectively, of the assigned channel shall be attenuated no less than:
(1) 30 dB for transmitters rated at no more than 1 watt power output.
(2) 50 dB for transmitters rated at more than 1 watt power output.
(3) 60 dB for transmitters rated at more than 100 watts power output.
(d) Greater attenuation than that specified in paragraph (c) of this section may be required if interference results from emissions outside the assigned channel.
[28 FR 13722, Dec. 14, 1963, as amended at 33 FR 8677, June 13, 1968; 36 FR 19592, Oct. 8, 1971; 47 FR 21500, May 18, 1982; 52 FR 31404, Aug. 20, 1987]

Title 47 published on 2014-10-01.

The following are only the Rules published in the Federal Register after the published date of Title 47.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2015-07-07; vol. 80 # 129 - Tuesday, July 7, 2015
    1. 80 FR 38812 - WRC-07 Implementation Report and Order and WRC-12 Order
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      Final rule.
      Effective August 6, 2015.
      47 CFR Parts 1, 2, 25, 27, 74, 78, 80, 87, 90, 97, and 101

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United States Code

Title 47 published on 2014-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 47 CFR Part 74 after this date.

  • 2015-09-01; vol. 80 # 169 - Tuesday, September 1, 2015
    1. 80 FR 52715 - Amendment of the Commission's Rules To Provide for the Preservation of One Vacant Channel in the UHF Television Band for Use by White Space Devices and Wireless Microphones
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      Proposed rule.
      Comments may be filed on or before September 30, 2015, and reply comments may be filed on or before October 30, 2015. Written comments on the proposed information collection requirements, subject to the Paperwork Reduction Act (PRA) of 1995, Public Law 104-13, should be submitted on or before October 30, 2015.
      47 CFR Parts 15, 73, 74