§  101.109   Bandwidth.

   Link to an amendment published at  76 FR 59572 , Sept. 27, 2011.

   (a) Each authorization issued pursuant to these rules will show, as the
   emission designator, a symbol representing the class of emission which
   must be prefixed by a number specifying the necessary bandwidth. This
   figure does not necessarily indicate the bandwidth actually occupied by
   the emission at any instant. In those cases where part 2 of this
   chapter does not provide a formula for the computation of the necessary
   bandwidth, the occupied bandwidth may be used in the emission
   designator.

   (b) Stations in this service will be authorized any type of emission,
   method of modulation, and transmission characteristic, consistent with
   efficient use of the spectrum and good engineering practice, except
   that Type B, damped-wave emission will not be authorized.

   (c) The maximum bandwidth which will be authorized per frequency
   assigned is set out in the table that follows. Regardless of the
   maximum authorized bandwidth specified for each frequency band, the
   Commission reserves the right to issue a license for less than the
   maximum bandwidth if it appears that a lesser bandwidth would be
   sufficient to support an applicant's intended communications.
      Frequency band (MHz)    Maximum authorized bandwidth
   928 to 929                 25 kHz^1,5,6
   932 to 932.5, 941 to 941.5 12.5 kHz^1,5,6
   932.5 to 935, 941.5 to 944 200 kHz^1
   952 to 960                 200 KHz^1,5,6
   1,850 to 1,990             10 MHz^1
   2,110 to 2,130             3.5 MHz
   2,130 to 2,150             800 or 1600 KHz^1
   2,150 to 2,160             10 MHz
   2,160 to 2,180             3.5 MHz
   2,180 to 2,200             800 or 1600 KHz^1
   2,450 to 2,483.5           625 KHz^2
   2,483.5 to 2,500           800 KHz
   3,700 to 4,200             20 MHz
   5,925 to 6,425             30 MHz^1
   6,425 to 6,525             25 MHz
   6,525 to 6,875             30 MHz.^1
   10,550 to 10,680           5 MHz^1
   10,700 to 11,700           40 MHz^1
   12,200 to 12,700^8         500 megahertz
   13,200 to 13,250           25 MHz
   17,700 to 18,140           220 MHz^1
   18,140 to 18,142           2 MHz
   18,142 to 18,580           6 MHz
   18,580 to 18,820           20 MHz^1
   18,820 to 18,920           10 MHz
   18,920 to 19,160           20 MHz^1
   19,160 to 19,260           10 MHz
   19,260 to 19,700           220 MHz^1
   21,200 to 23,600           50 MHz^1,4
   24,250 to 25,250           40 MHz^7
   27,500 to 28,350           850 MHz
   29,100 to 29,250           150 MHz
   31,000 to 31,075           75 MHz
   31,075 to 31,225           150 MHz
   31,225 to 31,300           75 MHz
   38,600 to 40,000           50 MHz^7
   71,000 to 76,000           5000 MHz
   81,000 to 86,000           5000 MHz
   92,000 to 95,000           (^3)

   ^1The maximum bandwidth that will be authorized for each particular
   frequency in this band is detailed in the appropriate frequency table
   in § 101.147. If contiguous channels are aggregated in the
   928-928.85/952-952.85/956.25-956.45 MHz, the 928.85-929/959.85-960 MHz,
   or the 932-932.5/941-941.5 MHz bands, then the bandwidth may exceed
   that which is listed in the table.

   ^21250 KHz, 1875 KHz, or 2500 KHz on a case-by-case basis.

   ^3To be specified in authorization. For the band 92 to 95 GHz, maximum
   bandwidth is licensed in one segment of 2 GHz from 92-94 GHz and one
   0.9 GHz segment from 94.1 to 95 GHz, or the total of the loaded band if
   smaller than the assigned bandwidth.

   ^4For exceptions, see § 101.147(s).

   ^5A 12.5 kHz bandwidth applies only to frequencies listed in
   § 101.147(b)(1) through (4).

   ^6For frequencies listed in § 101.147(b)(1) through (4), consideration
   will be given on a case-by-case basis to authorizing bandwidths up to
   50 kHz.

   ^7For channel block assignments in the 24,250-25,250 MHz and
   38,600-40,000 MHz bands, the authorized bandwidth is equivalent to an
   unpaired channel block assignment or to either half of a symmetrical
   paired channel block assignment. When adjacent channels are aggregated,
   equipment is permitted to operate over the full channel block
   aggregation without restriction.

   Note to Footnote 7: Unwanted emissions shall be suppressed at the
   aggregate channel block edges based on the same roll-off rate as is
   specified for a single channel block in § 101.111(a)(1) or in
   § 101.111(a)(2)(ii) and (iii) as appropriate.

   ^8For incumbent private operational fixed point-to-point stations in
   this band (those not licensed as MVDDS), the maximum bandwidth shall be
   20 MHz.

   [ 61 FR 26677 , May 28, 1996, as amended at  61 FR 44181 , Aug. 28, 1996;
    62 FR 23167 , Apr. 29, 1997;  62 FR 24582 , May 6, 1997;  63 FR 6105 , Feb.
   6, 1998;  65 FR 17449 , Apr. 3, 2000;  65 FR 38329 , June 20, 2000;  65 FR 59358 , Oct. 5, 2000;  67 FR 43038 , June 26, 2002;  68 FR 4956 , Jan. 31,
   2003;  69 FR 3266 , Jan. 23, 2004;  70 FR 29997 , May 25, 2005;  75 FR 41771 , July 19, 2010]