Bandwidths.

  1. Law
  2. CFR 47
  3. Telecommunication
  4. Federal Communications Commission
  5. Safety and Special Radio Services
  6. Stations in the Maritime Services
  7. General Technical Standards
  8. Bandwidths.

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§ 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
A1B1 160HA1B 0.4
A1D12 16K0A1D 20.0
A2A 2K66A2A 2.8
A2B1 2K66A2B 2.8
A2D12 16K0A2D 20.0
A3E 6K00A3E 8.0
A3N2 2K66A3N 2.8
A3X3 3K20A3X 25.0
F1B4 280HF1B 0.3
F1B5 300HF1B 0.5
F1B6 16KOF1B 20.0
F1C 2K80F1C 3.0
F1D12 16K0F1D 20.0
F2B6 16KOF2B 20.0
F2C7 16KOF2C 20.0
F2D12 16K0F2D 20.0
F3C 2K80F3C 3.0
F3C7 16KOF3C 20.0
F3E8 16KOF3E 20.0
F3N9 20MOF3N 20,000.0
G1D12 16K0G1D 20.0
G2D12 16K0G2D 20.0
G3D10 16KOG3D 20.0
G3E8 16KOG3E 20.0
G3N3 13 16KOG3N 20.0
H2A 1K40H2A 2.8
H2B1 1K40H2B 2.8
H3E11 2K80H3E 3.0
H3N 2K66H3N 2.8
J2A 160HJ2A 0.4
J2B4 280HJ2B 0.3
J2B5 300HJ2B 0.5
J2B 2K80J2B 3.0
J2C 2K80J2C 3.0
J2D14 2K80J2D 3.0
J3C 2K80J3C 3.0
J3E11 2K80J3E 3.0
J3N 160HJ3N 0.4
NON NON 0.4
PON (12) (12)
R3E11 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]


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