47 CFR 74.795 - Digital low power TV and TV translator transmission system facilities.

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§ 74.795 Digital low power TV and TV translator transmission system facilities.
(a) A digital low power TV or TV translator station shall operate with a transmitter that is either certificated for licensing based on the following provisions or has been modified for digital operation pursuant to § 74.796.
(b) The following requirements must be met before digital low power TV and TV translator transmitter will be certificated by the FCC:
(1) The transmitter shall be designed to produce digital television signals that can be satisfactorily viewed on consumer receiving equipment based on the digital broadcast television transmission standard in § 73.682(d) of this chapter;
(2) Emissions on frequencies outside the authorized channel, measured at the output terminals of the transmitter (including any filters that may be employed), shall meet the requirements of § 74.794, as applicable;
(3) The transmitter shall be equipped to display the digital power output (i.e., average power over a 6 MHz channel) and shall be designed to prevent the power output from exceeding the maximum rated power output under any condition;
(4) When subjected to variations in ambient temperature between 0 and 40 degrees Centigrade and variations in power main voltage between 85% and 115% of the rated power supply voltage, the frequency stability of the local oscillator in the RF channel upconverter shall be maintained within 10 kHz of the nominal value; and
(5) The transmitter shall be equipped with suitable meters and jacks so that appropriate voltage and current measurements may be made while the transmitter is in operation.
(c) The following additional requirements apply to digital heterodyne translators:
(1) The maximum rated power output (digital average power over a 6 MHz channel) shall not exceed 30 watts for transmitters operating on channels 14-69 and 3 watts for transmitters operating on channels 2-13; and
(2) The transmitter shall contain circuits which will maintain the digital average power output constant within 1 dB when the strength of the input signal is varied over a range of 30 dB.
(d) Certification will be granted only upon a satisfactory showing that the transmitter is capable of meeting the requirements of paragraph (b) of this section, pursuant to the procedures described in § 74.750(e).
[69 FR 69336, Nov. 29, 2004]

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.

  • 2014-11-06; vol. 79 # 215 - Thursday, November 6, 2014
    1. 79 FR 65906 - Expanding the Economic and Innovation Opportunities of Spectrum Through Incentive Auctions
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      FEDERAL COMMUNICATIONS COMMISSION
      Clarification.
      Effective November 6, 2014.
      47 CFR Parts 0, 1, 2, 15, 27, 73, and 74

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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 74 after this date.

  • 2014-11-28; vol. 79 # 229 - Friday, November 28, 2014
    1. 79 FR 70824 - Low Power Television Digital Rules
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      FEDERAL COMMUNICATIONS COMMISSION
      Proposed rule.
      Comments Due: December 29, 2014. Reply Comments Due: January 12, 2015. Written comments on the proposed information collection requirements, subject to the Paperwork Reduction Act (PRA) of 1995, Pub. L. 104-13, should be submitted on or before January 27, 2015.
      47 CFR Parts 15 and 74