47 CFR 90.265 - Assignment and use of frequencies in the bands allocated for Federal use.

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There are 7 Updates appearing in the Federal Register for 47 CFR 90. View below or at eCFR (GPOAccess)
§ 90.265 Assignment and use of frequencies in the bands allocated for Federal use.
(a) The following center frequencies are available for assignment to fixed stations in the Public Safety Pool or the Industrial/Business Pool, subject to the provisions of this section:
Hydro Channels (MHz)
169.4250 170.2625 171.1000 406.1250
169.4375 170.2750 171.1125 406.1750
169.4500 170.2875 171.1250 412.6625
169.4625 170.3000 171.8250 412.6750
169.4750 170.3125 171.8375 412.6875
169.4875 170.3250 171.8500 412.7125
169.5000 171.0250 171.8625 412.7250
169.5125 171.0375 171.8750 412.7375
169.5250 171.0500 171.8875 412.7625
170.2250 171.0625 171.9000 412.7750
170.2375 171.0750 171.9125 415.1250
170.2500 171.0875 171.9250 415.1750
(1) The use of these frequencies is limited to transmitting hydrological or meteorological data.
(2) All use of these frequencies is on a secondary basis to Federal Government stations and the hydrological or meteorological data being handled must be made available on request to governmental agencies.
(3) Other provisions of this part notwithstanding, an operational fixed station operating on these frequencies shall not communicate with any station in the mobile service unless written authorization to do so has been obtained from the Commission.
(4) Persons who desire to operate stations on these frequencies should communicate with the Commission for instructions concerning the procedure to be followed in filing formal application.
(5) After May 27, 2005, for the 169-172 MHz band and January 1, 2008 for the 406-416 MHz band, channels for new operations are limited to an authorized bandwidth not to exceed 11.25 kHz. After those dates, existing systems with an authorized bandwidth of greater than 11.25 kHz (including those systems that expand existing operations) may continue to operate with a bandwidth greater than 11.25 kHz until January 1, 2013. Such operations are limited by paragraphs (a)(6) and (a)(7) of this section.
(6) After May 27, 2005, if a licensee of a channel in the band 169-172 MHz which uses equipment with an authorized bandwidth greater than 11.25 kHz cannot resolve an interference complaint to the satisfaction of an impacted Federal agency or is advised to do so by the Hydro Committee as approved by the FCC, then the licensee must cease operation on the frequency upon notification by the Commission.
(7) After January 1, 2008, if a licensee of a channel in the band 406.1-420 MHz which uses equipment with an authorized bandwidth greater than 11.25 kHz cannot resolve an interference complaint to the satisfaction of an impacted Federal agency or is advised to do so by the Hydro Committee as approved by the FCC, then the licensee must cease operation on the frequency upon notification by the Commission.
(8) After May 27, 2005, new assignments on the frequencies 406.125 MHz and 406.175 MHz are to be primarily for paired operations with the frequencies 415.125 MHz and 415.175 MHz, respectively and limited to an authorized bandwidth not to exceed 11.25 kHz when paired.
(9) Existing stations may continue to use the center frequencies 169.575 MHz, 409.675 MHz, 409.725 MHz, and 412.625 MHz until January 1, 2013, subject to the requirements of paragraphs (a)(6) and (a)(7) of this section.
(b) The following frequencies are available for wireless microphone operations to eligibles in this part, subject to the provisions of this paragraph:
Frequencies (MHz)
169.445 171.045 169.505 171.105 170.245 171.845 170.305 171.905
(1) The emission bandwidth shall not exceed 54 kHz.
(2) The output power shall not exceed 50 milliwatts.
(3) The frequency stability of wireless microphones shall limit the total emission to within ±32.5 kHz of the assigned frequency.
(4) Wireless microphone operations are unprotected from interference from other licensed operations in the band. If any interference from wireless microphone operation is received by any Government or non-Government operation, the wireless microphone must cease operation on the frequency involved. Applications are subject to Government coordination.
(c) The following center frequencies are available for assignment to licensees engaged in forest firefighting and conservation activities, subject to the provisions of this section:
Forest Firefighting and Conservation Channels (MHz)
170.425 171.425 172.225
170.475 171.475 172.275
170.575 171.575 172.375
(1) These frequencies will be assigned on a secondary basis to any U.S. Government station.
(2) The frequencies 170.425 MHz, 170.475 MHz, 170.575 MHz, 171.425 MHz, 171.575 MHz, 172.225 MHz, and 172.275 MHz will be assigned only to licensees directly responsible for the prevention, detection, and suppression of forest fires.
(3) The frequencies 171.475 MHz and 172.275 MHz will be assigned to licensees directly responsible for the prevention, detection, and suppression of forest fires; or to licensees engaged in forest conservation activities for mobile relay operation only.
(4) The frequencies 170.425 MHz, 170.575 MHz, 171.475 MHz, 172.225 MHz, and 172.375 MHz will be assigned for use only in areas west of the Mississippi River.
(5) The frequencies 170.475 MHz, 171.425 MHz, 171.575 MHz, and 172.275 MHz will be assigned for use only in areas east of the Mississippi River.
(6) All applications for use of these frequencies must be accompanied by a letter of concurrence by the United States Department of Agriculture.
(7) After May 27, 2005, channels for new operations are limited to an authorized bandwidth not to exceed 11.25 kHz. Between May 27, 2005, and January 1, 2013, existing systems with an authorized bandwidth of greater than 11.25 kHz (including those systems that expand existing operations) may continue to operate with a bandwidth greater than 11.25 kHz, subject to the limitations set forth in paragraph (c)(8), of this section.
(8) After May 27, 2005, if a licensee that uses equipment with an authorized bandwidth greater than 11.25 kHz cannot resolve an interference complaint from an impacted Federal agency, then the licensee must cease operation on the frequency upon notification by the Commission.
(d) The frequencies 166.250 MHz and 170.150 MHz are available for assignment to licensees engaged in public safety activities, subject to the provisions of this section:
(1) These frequencies are available for assignment to stations in the Public Safety Pool, only at points within 241.4 km. (150 mi.) of New York, N.Y.;
(2) Operations on these channels is on a secondary basis to any Federal station; and
(3) After May 27, 2005, if a licensee that uses equipment with an authorized bandwidth greater than 11.25 kHz cannot resolve an interference complaint from an impacted Federal agency, then the licensee must cease operation on the frequency upon notification by the Commission.
(4) After May 27, 2005, channels for new operations are limited to an authorized bandwidth not to exceed 11.25 kHz. Between May 27, 2005, and January 1, 2013, existing systems with an authorized bandwidth of greater than 11.25 kHz (including those systems that expand existing operations) may continue to operate with a bandwidth greater than 11.25 kHz, subject to the limitations set forth in paragraph (d)(3), of this section.
(e) The following frequencies are available for use by Medical Radiocommunication Systems:
(1) The frequencies 150.775 MHz, 150.790 MHz, and 163.250 MHz, subject to following provisions:
(i) After May 27, 2005, new assignments for these frequencies shall be authorized only for the purpose of delivering or rendering medical services to individuals (medical radiocommunication systems).
(ii) After May 27, 2005, new operations on the frequency 163.250 MHz are limited to an authorized bandwidth not to exceed 11.25 kHz.
(iii) After January 1, 2008, new operations on the frequencies 150.775 MHz and 150.790 MHz are limited to an authorized bandwidth not to exceed 11.25 kHz.
(iv) Existing systems with an authorized bandwidth of greater than 11.25 kHz (including those systems that expand existing operations) may continue to operate on a primary basis with a bandwidth greater than 11.25 kHz until January 1, 2013. After January 1, 2013, stations that use the frequencies 150.775 MHz, 150.790 MHz, or 163.250 MHz shall be limited to an authorized bandwidth not to exceed 11.25 kHz.
(2) The frequency 152.0075 MHz and frequencies within the bands 462.9375-463.1875 MHz and 467.9375 MHz-468.1875 MHz, subject to the limitations specified in § 90.20.
(Secs. 4(i) and 303(r), Communications Act of 1934, as amended, §§ 0.131 and 0.331 of the Commission's Rules and 5 U.S.C. 553 (b)(3)(B) and (d)(3))
[49 FR 20506, May 15, 1984, as amended at 62 FR 18929, Apr. 17, 1997; 70 FR 21661, Apr. 27, 2005]

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.

  • 2014-10-28; vol. 79 # 208 - Tuesday, October 28, 2014
    1. 79 FR 64126 - Development of Operational, Technical and Spectrum Requirements for Meeting Federal, State and Local Public Safety Agency Communications Requirements Through the Year 2010
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Final rule; announcement of effective date.
      The information collections in 47 CFR 90.525, 90.529, 90.531 published at 65 FR 66644, November 7, 2000 and 66 FR 10632, February 16, 2001, are effective October 28, 2014.
      47 CFR Part 90

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United States Code
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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.

  • 2014-10-28; vol. 79 # 208 - Tuesday, October 28, 2014
    1. 79 FR 64126 - Development of Operational, Technical and Spectrum Requirements for Meeting Federal, State and Local Public Safety Agency Communications Requirements Through the Year 2010
      GPO FDSys XML | Text
      FEDERAL COMMUNICATIONS COMMISSION
      Final rule; announcement of effective date.
      The information collections in 47 CFR 90.525, 90.529, 90.531 published at 65 FR 66644, November 7, 2000 and 66 FR 10632, February 16, 2001, are effective October 28, 2014.
      47 CFR Part 90