§  80.205   Bandwidths.

   (a) An emission designator shows the necessary bandwidth for each class
   of emission of a station except that in ship earth stations it shows
   the occupied or necessary bandwidth, whichever is greater. The
   following table gives the class of emission and corresponding emission
   designator and authorized bandwidth:
   Class of emission Emission designator Authorized bandwidth (kHz)
   A1A                           160HA1A                        0.4
   A1B ^1                        160HA1B                        0.4
   A1D ^12                       16K0A1D                       20.0
   A2A                           2K66A2A                        2.8
   A2B ^1                        2K66A2B                        2.8
   A2D ^12                       16K0A2D                       20.0
   A3E                           6K00A3E                        8.0
   A3N ^2                        2K66A3N                        2.8
   A3X ^3                        3K20A3X                       25.0
   F1B ^4                        280HF1B                        0.3
   F1B ^5                        300HF1B                        0.5
   F1B ^6                        16KOF1B                       20.0
   F1C                           2K80F1C                        3.0
   F1D ^12                       16K0F1D                       20.0
   F2B ^6                        16KOF2B                       20.0
   F2C ^7                        16KOF2C                       20.0
   F2D ^12                       16K0F2D                       20.0
   F3C                           2K80F3C                        3.0
   F3C ^7                        16KOF3C                       20.0
   F3E ^8                        16KOF3E                       20.0
   F3N ^9                        20MOF3N                   20,000.0
   G1D ^12                       16K0G1D                       20.0
   G2D ^12                       16K0G2D                       20.0
   G3D ^10                       16KOG3D                       20.0
   G3E ^8                        16KOG3E                       20.0
   G3N ^3,13                     16KOG3N                       20.0
   H2A                           1K40H2A                        2.8
   H2B ^1                        1K40H2B                        2.8
   H3E ^11                       2K80H3E                        3.0
   H3N                           2K66H3N                        2.8
   J2A                           160HJ2A                        0.4
   J2B ^4                        280HJ2B                        0.3
   J2B ^5                        300HJ2B                        0.5
   J2B                           2K80J2B                        3.0
   J2C                           2K80J2C                        3.0
   J2D ^14                       2K80J2D                        3.0
   J3C                           2K80J3C                        3.0
   J3E ^11                       2K80J3E                        3.0
   J3N                           160HJ3N                        0.4
   NON                               NON                        0.4
   PON                            ( ^12)                     ( ^12)
   R3E ^11                       2K80R3E                        3.0

   ^1 On 500 kHz and 2182 kHz A1B, A2B, H2B and J2B emissions indicate
   transmission of the auto alarm signals.

   ^2 Applicable only to transmissions in the 405-525 kHz band for
   direction finding.

   ^3 Applicable only to EPIRB's.

   ^4 Radioprinter transmissions for communications with private coast
   stations.

   ^5 NB-DP radiotelegraph and data transmissions for communications with
   public coast stations.

   ^6 Applicable only to radioprinter and data in the 156-162 MHz band and
   radioprinter in the 216-220 MHz band.

   ^7 Applicable only to facsimile in the 156-162 MHz and 216-220 MHz
   bands.

   ^8 Applicable only when maximum frequency deviation is 5 kHz. See also
   paragraph (b) of this section.

   ^9 Applicable only to marine hand-held radar.

   ^10 Applicable only to on-board frequencies for maneuvering or
   navigation.

   ^11 Transmitters approved prior to December 31, 1969, for emission H3E,
   J3E and R3E and an authorized bandwidth of 3.5 kHz may continue to be
   operated. These transmitters will not be authorized in new
   installations.

   ^12 Applicable to radiolocation and associated telecommand ship
   stations operating on 154.585 MHz, 159.480 MHz, 160.725 MHz. 160.785
   MHz, 454.000 MHz, and 459.000 MHz; emergency position indicating
   radiobeacons operating in the 406.000-406.1000 MHz frequency bank; and
   data transmissions in the 156-162 MHz band.

   ^13 [Reserved]

   ^14 The information is contained in multiple very low level
   subcarriers.

   (b) For land stations the maximum authorized frequency deviation for
   F3E or G3E emission is as follows:

   (1) 5 kHz in the 72.0-73.0 MHz, 75.4-76.0 MHz and 156-162 MHz bands;

   (2) 15 kHz for stations which were authorized for operation before
   December 1, 1961, in the 73.0-74.6 MHz band.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  52 FR 7418 , Mar. 11, 1987;
    53 FR 37308 , Sept. 26, 1988;  56 FR 11516 , Mar. 19, 1991;  57 FR 43407 ,
   Sept. 21, 1992;  58 FR 33344 , June 17, 1993;  59 FR 7714 , Feb. 16, 1994;
    62 FR 40305 , July 28, 1997;  63 FR 36606 , July 7, 1998;  68 FR 46962 ,
   Aug. 7, 2003;  76 FR 67611 , Nov. 2, 2011]

   return arrow Back to Top