47 CFR 90.669 - Emission limits.

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There are 6 Updates appearing in the Federal Register for 47 CFR 90. View below or at eCFR (GPOAccess)
§ 90.669 Emission limits.
(a) On any frequency in an MTA licensee's spectrum block that is adjacent to a non-MTA frequency, the power of any emission shall be attenuated below the transmitter power (P) by at least 43 plus 10 log10(P) decibels or 80 decibels, whichever is the lesser attenuation.
Note:
The measurements of emission power can be expressed in peak or average values, provided they are expressed in the same parameters as the transmitter power.
(b) When an emission outside of the authorized bandwidth causes harmful interference, the Commission may, at its discretion, require greater attenuation than specified in this section.
[60 FR 21992, May 4, 1995]

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.

  • 2014-08-05; vol. 79 # 150 - Tuesday, August 5, 2014
    1. 79 FR 45371 - Rules in the 904-909.75 and 919.75-928 MHz Bands
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      FEDERAL COMMUNICATIONS COMMISSION
      Final rule.
      Effective Date: September 4, 2014.
      47 CFR Part 90

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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 90 after this date.

  • 2014-08-06; vol. 79 # 151 - Wednesday, August 6, 2014
    1. 79 FR 45752 - Commission Seeks Comment on Shared Commercial Operations in the 3550-3650 MHz Band; Extension of Reply Comment Period
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      FEDERAL COMMUNICATIONS COMMISSION
      Proposed rule; extension of reply comment period.
      Submit reply comments on or before August 15, 2014.
      47 CFR Parts 1, 2, 90, 95, and 96