47 CFR 2.1047 - Measurements required: Modulation characteristics.

Status message

There are 3 Updates appearing in the Federal Register for 47 CFR 2. View below or at eCFR (GPOAccess)
§ 2.1047 Measurements required: Modulation characteristics.
(a) Voice modulated communication equipment. A curve or equivalent data showing the frequency response of the audio modulating circuit over a range of 100 to 5000 Hz shall be submitted. For equipment required to have an audio low-pass filter, a curve showing the frequency response of the filter, or of all circuitry installed between the modulation limiter and the modulated stage shall be submitted.
(b) Equipment which employs modulation limiting. A curve or family of curves showing the percentage of modulation versus the modulation input voltage shall be supplied. The information submitted shall be sufficient to show modulation limiting capability throughout the range of modulating frequencies and input modulating signal levels employed.
(c) Single sideband and independent sideband radiotelephone transmitters which employ a device or circuit to limit peak envelope power. A curve showing the peak envelope power output versus the modulation input voltage shall be supplied. The modulating signals shall be the same in frequency as specified in paragraph (c) of § 2.1049 for the occupied bandwidth tests.
(d) Other types of equipment. A curve or equivalent data which shows that the equipment will meet the modulation requirements of the rules under which the equipment is to be licensed.
[39 FR 5919, Feb. 15, 1974. Redesignated and amended at 63 FR 36599, July 7, 1998]

Title 47 published on 2013-10-01

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.

  • 2014-05-12; vol. 79 # 91 - Monday, May 12, 2014
    1. 79 FR 26863 - Commission's Rules Governing the Use of Earth Stations Aboard Aircraft Communicating With Fixed-Satellite Service Geostationary-Orbit Space Stations Operating in the Ku-Bands
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Final rule.
      Effective June 11, 2014.
      47 CFR Parts 2 and 25

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
Statutes at Large

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 2 after this date.

  • 2014-05-12; vol. 79 # 91 - Monday, May 12, 2014
    1. 79 FR 26863 - Commission's Rules Governing the Use of Earth Stations Aboard Aircraft Communicating With Fixed-Satellite Service Geostationary-Orbit Space Stations Operating in the Ku-Bands
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Final rule.
      Effective June 11, 2014.
      47 CFR Parts 2 and 25