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47 CFR 2.1053 - Measurements required: Field strength of spurious radiation.

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§ 2.1053
Measurements required: Field strength of spurious radiation.
(a) Measurements shall be made to detect spurious emissions that may be radiated directly from the cabinet, control circuits, power leads, or intermediate circuit elements under normal conditions of installation and operation. Curves or equivalent data shall be supplied showing the magnitude of each harmonic and other spurious emission. For this test, single sideband, independent sideband, and controlled carrier transmitters shall be modulated under the conditions specified in paragraph (c) of § 2.1049, as appropriate. For equipment operating on frequencies below 890 MHz, an open field test is normally required, with the measuring instrument antenna located in the far-field at all test frequencies. In the event it is either impractical or impossible to make open field measurements (e.g. a broadcast transmitter installed in a building) measurements will be accepted of the equipment as installed. Such measurements must be accompanied by a description of the site where the measurements were made showing the location of any possible source of reflections which might distort the field strength measurements. Information submitted shall include the relative radiated power of each spurious emission with reference to the rated power output of the transmitter, assuming all emissions are radiated from halfwave dipole antennas.
(b) The measurements specified in paragraph (a) of this section shall be made for the following equipment:
(1) Those in which the spurious emissions are required to be 60 dB or more below the mean power of the transmitter.
(2) All equipment operating on frequencies higher than 25 MHz.
(3) All equipment where the antenna is an integral part of, and attached directly to the transmitter.
(4) Other types of equipment as required, when deemed necessary by the Commission.
[39 FR 5919, Feb. 15, 1974. Redesignated and amended at 63 FR 36599, July 7, 1998]

Title 47 published on 2012-10-01

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.

  • 2013-04-29; vol. 78 # 82 - Monday, April 29, 2013
    1. 78 FR 25138 - Radio Experimentation and Market Trials—Streamlining Rules
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Final rule.
      Effective May 29, 2013, except §§ 2.803(c)(2), 5.59, 5.61, 5.63, 5.64, 5.65, 5.73, 5.79, 5.81, 5.107, 5.115, 5.121, 5.123, 5.205, 5.207, 5.217(b), 5.307, 5.308, 5.309, 5.311, 5.404, 5.405, 5.406, 5.504, and 5.602. These rules contain new or modified information collection requirements that require approval by the Office of Management and Budget (OMB) under the Paperwork Reduction Act (PRA), and will become effective after the Commission publishes a document in the Federal Register announcing the approval and effective date.
      47 CFR Parts 0, 1, 2, 5, 22, 73, 74, 80, 87, 90 and 101

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
USC : Title 47 - TELEGRAPHS, TELEPHONES, AND RADIOTELEGRAPHS

§ 154 - Federal Communications Commission

§ 155 - Commission

§ 302a - Devices which interfere with radio reception

§ 303 - Powers and duties of Commission

§ 307 - Licenses

§ 336 - Broadcast spectrum flexibility

Statutes at Large

48 Stat. 1066

48 Stat. 1068

48 Stat. 1082

48 Stat. 1083

Title 47 published on 2012-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 47 CFR 2 after this date.

  • 2013-05-03; vol. 78 # 86 - Friday, May 3, 2013
    1. 78 FR 25916 - Authorization of Radiofrequency Equipment
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Proposed rule.
      Comments must be filed on or before June 17, 2013, and reply comments must be filed on or before July 17, 2013.
      47 CFR Parts 0, 2, 15 and 68