47 CFR 95.633 - Emission bandwidth.

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There are 2 Updates appearing in the Federal Register for 47 CFR 95. View below or at eCFR (GPOAccess)
§ 95.633 Emission bandwidth. Link to an amendment published at 77 FR 55733, Sept. 11, 2012.
(a) The authorized bandwidth (maximum permissible bandwidth of a transmission) for emission type H1D, J1D, R1D, H3E, J3E or R3E is 4 kHz. The authorized bandwidth for emission type A1D or A3E is 8 kHz. The authorized bandwidth for emission type F1D, G1D, F3E or G3E is 20 kHz.
(b) The authorized bandwidth for any emission type transmitted by an R/C transmitter is 8 kHz.
(c) The authorized bandwidth for emission type F3E or F2D transmitted by a FRS unit is 12.5 kHz.
(d) For transmitters in the LPRS:
(1) The authorized bandwidth for narrowband frequencies is 4 kHz and the channel bandwidth is 5 kHz
(2) The channel bandwidth for standard band frequencies is 25 kHz.
(3) The channel bandwidth for extra band frequencies is 50 kHz.
(4) AMTS stations may use the 216.750-217.000 MHz band as a single 250 kHz channel so long as the signal is attenuated as specified in § 95.635(c).
(e) For transmitters in the MedRadio Service:
(1) For stations operating in 402-405 MHz, the maximum authorized emission bandwidth is 300 kHz. For stations operating in 401-401.85 MHz or 405-406 MHz, the maximum authorized emission bandwidth is 100 kHz. For stations operating in 401.85-402 MHz, the maximum authorized emission bandwidth is 150 kHz. For stations operating in 413-419 MHz, 426-432 MHz, 438-444 MHz, or 451-457 MHz, the maximum authorized emission bandwidth is 6 megahertz.
(2) Lesser emission bandwidths may be employed, provided that the unwanted emissions are attenuated as provided in § 95.635. See §§ 95.627(g), § 95.628(h), and 95.639(f) regarding maximum transmitter power and measurement procedures.
(3) Emission bandwidth will be determined by measuring the width of the signal between points, one below the carrier center frequency and one above the carrier center frequency, that are 20 dB down relative to the maximum level of the modulated carrier. Compliance with the emission bandwidth limit is based on the use of measurement instrumentation employing a peak detector function with an instrument resolution bandwidth approximately equal to 1.0 percent of the emission bandwidth of the device under measurement.
(f) The authorized bandwidth for any emission type transmitted by a MURS transmitter is specified as follows:
(1) Emissions on frequencies 151.820 MHz, 151.880 MHz, and 151.940 MHz are limited to 11.25 kHz.
(2) Emissions on frequencies 154.570 and 154.600 MHz are limited to 20.0 kHz.
(3) Provided, however, that all A3E emissions are limited to 8 kHz.
(g) DSRCS-OBUs are governed under subpart L of this part.
[53 FR 36789, Sept. 22, 1988. Redesignated and amended at 61 FR 28769, June 6, 1996, and further redesignated and amended at 61 FR 46567, 46568, Sept. 4, 1996; 64 FR 69930, Dec. 15, 1999; 65 FR 60878, Oct. 13, 2000; 67 FR 63289, Oct. 11, 2002; 68 FR 9902, Mar. 3, 2003; 69 FR 46446, Aug. 3, 2004; 74 FR 22707, May 14, 2009; 77 FR 4268, Jan. 27, 2012]
Effective Date Note:
At 77 FR 55733, Sept. 11, 2012, § 95.633 was amended by revising paragraph (e)(1), effective Oct. 11, 2012. For the convenience of the user, the revised text is set forth as follows:
§ 95.633 Emission bandwidth.
(e) * * *
(1) For stations operating in 402-405 MHz, the maximum authorized emission bandwidth is 300 kHz. For stations operating in 401-401.85 MHz or 405-406 MHz, the maximum authorized emission bandwidth is 100 kHz. For stations operating in 401.85-402 MHz, the maximum authorized emission bandwidth is 150 kHz. For stations operating in 413-419 MHz, 426-432 MHz, 438-444 MHz, or 451-457 MHz, the maximum authorized emission bandwidth is 6 megahertz. For stations operating in 2360-2400 MHz, the maximum authorized emission bandwidth is 5 megahertz.

Title 47 published on 2013-10-01

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  • 2014-01-16; vol. 79 # 11 - Thursday, January 16, 2014
    1. 79 FR 2793 - Medical Body Area Networks; Correction
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      FEDERAL COMMUNICATIONS COMMISSION
      Final rule; correction.
      Effective January 16, 2014, and applicable beginning December 27, 2013.
      47 CFR Part 95

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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 95 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