Goto Section: 80.369 | 80.373 | Table of Contents

FCC 80.371
Revised as of
Goto Year:1996 | 1998
Sec. 80.371  Public correspondence frequencies.

    This section describes the radiotelephony working frequencies 
assignable to ship and public coast stations.
    (a) Working frequencies in the 2000-4000 kHz band. The following 
table describes the working carrier frequency pairs in the 2000-4000 kHz 
band.

------------------------------------------------------------------------
            Working frequency pairs in the 2000-4000 kHz band           
-------------------------------------------------------------------------
                                            Carrier frequency (kHz)     
               Region                -----------------------------------
                                        Ship transmit    Coast transmit 
------------------------------------------------------------------------
East Coast:.........................            2031.5            2490.0
                                                2118.0        \1\ 2514.0
                                                2126.0            2522.0
                                                2142.0            2538.0
                                                2166.0            2558.0
                                                2198.0            2590.0
                                                2366.0            2450.0
                                                2382.0            2482.0
                                                2390.0            2566.0
                                                2400.0            2400.0
                                                2406.0            2442.0
                                                2406.0            2506.0
West Coat:..........................            2003.0            2450.0
                                                2009.0            2442.0
                                                2009.0            2566.0
                                                2031.5            2566.0
                                                2126.0            2522.0
                                                2206.0            2598.0
                                                2382.0            2466.0
                                                2406.0            2506.0
                                                2430.0            2482.0
Gulf Coast:.........................            2009.0            2466.0
                                                2134.0            2530.0
                                                2142.0            2538.0
                                            \1\ 2158.0        \1\ 2550.0
                                                2166.0            2558.0
                                                2206.0            2598.0
                                                2366.0            2450.0
                                                2382.0            2482.0
                                                2430.0            2572.0
                                                2458.0            2506.0
Great Lakes \2\:....................            2118.0            2514.0
                                                2158.0            2550.0
                                                2206.0            2582.0
Alaska:.............................            2131.0            2309.0
                                                2134.0            2312.0
                                                2237.0            2397.0
                                                2240.0            2400.0
Hawaii..............................            2134.0            2530.0
Caribbean:..........................            2009.0            2506.0
                                            \3\ 2086.0            2585.0
                                                2134.0            2530.0
Guam................................            2009.0            2506.0
------------------------------------------------------------------------
\1\ Unlimited hours of use from December 15 to April 1 and day only from
  April 1 to December 15. Harmful interference must not be caused to any
  ship station in the Great Lakes region.                               
\2\ In the Great Lakes region 2206 kHz is not available for transmission
  to U.S. ships except in the case of distress. U.S. coast stations in  
  the Great Lakes area may use 2514, 2550 and 2582 kHz on a shared basis
  with coast stations of Canada. Except in the case of distress, the    
  frequency 2550 kHz must not be used for transmission to ship stations 
  of Canada since the associated ship station transmit frequency 2158   
  kHz is not available to Canadian ship stations for transmission and   
  2582 kHz must not be used for public correspondence transmissions to  
  U.S. ship stations since the associated ship transmit frequency 2206  
  kHz is not available to U.S. ship stations for transmissions except in
  the case of distress.                                                 
\3\ Limited to a peak envelope power of 150 watts.                      

    (b) Working frequencies in the 4000-25700 kHz band. This paragraph 
describes the working carrier frequencies in the 4000-27500 kHz band.
    (1) The following table specifies the carrier frequencies available 
for assignment to public coast stations. The paired ship frequencies are 
available for use by authorized ship stations.

            Table A--Public Correspondence (Duplex Channels)            
      [Working carrier frequency pairs in the 4000-27500 kHz band]      
------------------------------------------------------------------------
                                                            Carrier     
                                                       frequencies (kHz)
                  Region                     Channel -------------------
                                               No.      Ship      Coast 
                                                      transmit  transmit
------------------------------------------------------------------------
East Coast................................       403    4071.0    4363.0
                                                 410    4092.0    4384.0
                                                 411    4095.0    4387.0
                                                 412    4098.0    4390.0
                                                 416    4110.0    4402.0
                                                 417    4113.0    4405.0
                                                 422    4128.0    4420.0
                                                 423    4131.0    4423.0
                                                 802    8198.0    8722.0
                                                 805    8207.0    8731.0

[[Page 93]]

                                                                        
                                                 808    8216.0    8740.0
                                                 810    8222.0    8746.0
                                                 811    8225.0    8749.0
                                                 814    8234.0    8758.0
                                                 815    8237.0    8761.0
                                                 825    8267.0    8791.0
                                                 826    8270.0    8794.0
                                                 831    8285.0    8809.0
                                                1203   12236.0   13083.0
                                                1206   12245.0   13092.0
                                                1208   12251.0   13098.0
                                                1209   12254.0   13101.0
                                                1210   12257.0   13104.0
                                                1211   12260.0   13107.0
                                                1215   12272.0   13119.0
                                                1222   12293.0   13140.0
                                                1223   12296.0   13143.0
                                                1228   12311.0   13158.0
                                                1230   12317.0   13164.0
                                                1601   16360.0   17242.0
                                                1605   16372.0   17254.0
                                                1609   16384.0   17266.0
                                                1610   16387.0   17269.0
                                                1611   16390.0   17272.0
                                                1616   16405.0   17287.0
                                                1620   16417.0   17299.0
                                                1626   16435.0   17317.0
                                                1631   16450.0   17332.0
                                                2201   22000.0   22696.0
                                                2205   22012.0   22708.0
                                                2210   22027.0   22723.0
                                                2215   22042.0   22738.0
                                                2216   22045.0   22741.0
                                                2222   22063.0   22759.0
                                                2236   22105.0   22801.0
West Coast................................       401    4065.0    4357.0
                                                 416    4110.0    4402.0
                                                 417    4113.0    4405.0
                                                 804    8204.0    8728.0
                                                 809    8219.0    8743.0
                                                 814    8234.0    8758.0
                                                1201   12230.0   13077.0
                                                1202   12233.0   13080.0
                                                1203   12236.0   13083.0
                                                1229   12314.0   13161.0
                                                1230   12317.0   13164.0
                                                1602   16363.0   17245.0
                                                1603   16366.0   17248.0
                                                1624   16429.0   17311.0
                                                2214   22039.0   22735.0
                                                2223   22066.0   22762.0
                                                2228   22081.0   22777.0
                                                2236   22105.0   22801.0
Gulf Coast................................       404    4074.0    4366.0
                                                 405    4077.0    4369.0
                                                 414    4104.0    4396.0
                                                 419    4119.0    4411.0
                                                 824    8264.0    8788.0
                                                 829    8279.0    8803.0
                                                 830    8282.0    8806.0
                                                1212   12263.0   13110.0
                                                1225   12302.0   13149.0
                                                1226   12305.0   13152.0
                                                1607   16378.0   17260.0
                                                1632   16453.0   17335.0
                                                1641   16480.0   17362.0
                                                2227   22078.0   22774.0
                                                2231   22090.0   22786.0
                                                2237   22108.0   22804.0
Great Lakes...............................       405    4077.0    4369.0
                                                 409    4089.0    4381.0
                                                 418    4116.0    4408.0
                                                 826    8270.0    8794.0
Hawaii....................................       418    4116.0    4408.0
                                                 808    8216.0    8740.0
                                                1222   12293.0   13140.0
                                                1601   16360.0   17242.0
Caribbean.................................       604    6209.0    6510.0
                                                 605    6212.0    6513.0
                                                1602   16363.0   17245.0
                                                1603   16366.0   17248.0
                                                2223   22066.0   22762.0
------------------------------------------------------------------------

    (2) The following table specifies the additional carrier frequencies 
available for assignment to public coast stations for public 
correspondence. The paired ship frequencies are available for use by 
authorized ship stations. The specific frequency assignment available to 
public coast stations for a particular geographic area is indicated by 
an ``x'' under the appropriate column. Table B is based on the initial 
Appendix 25 Allotment Arrangement published by the International 
Frequency Registration Board (IFRB) (see IFRB Circular-letter No. 836, 
dated September 28, 1990). The allotment areas are in accordance with 
the ``Standard Defined Areas'' as identified in the Appendix 25 Planning 
System and indicated in the Preface to the International Frequency List 
(IFL) (see IFRB Circular-letter No. 843, dated October 31, 1990).

                           Table B--Public Correspondence (Additional Duplex Channels)          
                
                           [Working carrier frequency pairs in th 4000-27500 kHz band]          
                
------------------------------------------------------------------------------------------------
----------------
                                 Ship      Coast                                                
                
           Channel             transmit  transmit  USA-E  USA-W  USA-S  USA-C   VIR    HWA    AL
S    PTR    GUM 
------------------------------------------------------------------------------------------------
----------------
                                            Carrier frequencies (kHz)                           
                
                                                                                                
                
427..........................    4143.0    4435.0  x      x      x      x      x      x      x  
    --     x    

[[Page 94]]

                                                                                                
                
428..........................    4060.0    4351.0  x      x      x      x      x      x      x  
    x      x    
607..........................    6218.0    6519.0  x      x      x      x      x      x      x  
    x      x    
836..........................    8113.0    8713.0  x      x      x      x      x      x      x  
    x      x    
837..........................    8128.0    8716.0  x      x      x      x      x      x      x  
    x      x    
1233.........................   12326.0   13173.0  x      x      x      x      x      x      x  
    x      x    
1234.........................   12329.0   13176.0  --     x      x      --     --     x      x  
    --     x    
1235.........................   12332.0   13179.0  x      x      x      x      x      x      x  
    x      x    
1236.........................   12335.0   13182.0  --     x      x      --     --     x      -- 
    --     --   
1237.........................   12338.0   13185.0  x      --     x      x      x      --     -- 
    x      --   
1642.........................   16483.0   17365.0  x      x      x      x      x      x      x  
    x      x    
1643.........................   16486.0   17368.0  x      x      x      x      x      x      x  
    x      x    
1644.........................   16489.0   17371.0  x      x      x      x      --     x      x  
    --     x    
1645.........................   16492.0   17374.0  x      x      x      x      x      x      x  
    x      x    
1646.........................   16495.0   17377.0  --     x      --     --     --     --     -- 
    --     --   
1647.........................   16498.0   17380.0  x      x      x      x      --     x      x  
    --     x    
1648.........................   16501.0   17383.0  --     x      --     x      x      x      x  
    x      x    
1801.........................   18780.0   19755.0  x      x      x      x      x      x      x  
    x      x    
1802.........................   18783.0   19758.0  x      --     x      x      x      --     -- 
    x      --   
1803.........................   18786.0   19761.0  x      x      --     x      x      x      x  
    x      x    
1804.........................   18789.0   19764.0  --     x      x      --     --     x      x  
    --     --   
1805.........................   18792.0   19767.0  --     x      --     --     --     x      x  
    --     --   
1807.........................   18798.0   19773.0  x      x      x      x      x      x      x  
    x      x    
1808.........................   18801.0   19776.0  x      x      x      x      x      x      x  
    x      x    
2241.........................   22120.0   22816.0  x      x      x      x      x      x      x  
    x      x    
2242.........................   22123.0   22819.0  x      x      x      x      x      x      x  
    x      x    
2243.........................   22126.0   22822.0  x      x      x      x      x      x      x  
    x      --   
2244.........................   22129.0   22825.0  --     x      --     --     --     x      x  
    --     --   
2245.........................   22132.0   22828.0  --     x      x      --     --     x      x  
    --     --   
2246.........................   22135.0   22831.0  x      x      x      x      --     x      x  
    --     x    
2247.........................   22138.0   22834.0  x      x      x      x      x      x      x  
    --     x    
2501.........................   25070.0   26145.0  x      x      x      x      --     x      x  
    --     x    
2502.........................   25073.0   26148.0  x      x      x      x      x      x      x  
    x      --   
2503.........................   25076.0   26151.0  x      x      x      x      x      x      x  
    --     --   
2504.........................   25079.0   26154.0  x      x      x      x      x      x      x  
    x      x    
------------------------------------------------------------------------------------------------
----------------

    (3) The following table specifies the non-paired carrier frequencies 
that are available for assignment to public coast stations for simplex 
operations subject to the provision of paragraph (b)(4) of this section. 
These frequencies are available for use by authorized ship stations for 
transmissions to coast stations (simplex operations). Assignments on 
these frequencies must accept interference. They are shared with 
government users and are considered ``common use'' frequencies under the 
international Radio Regulations. They cannot be notified for inclusion 
in the Master International Frequency Register, which provides stations 
with interference protection, but may be listed in the international 
List of Coast Stations. (See Radio Regulation No. 1220 and 
Recommendation 304.)

                     Public Correspondence (Simplex)                    
  [Non-paired radiotelephony frequencies in the 4000-27500 kHz Band \1\ 
                       Carrier Frequencies (kHz)]                       
------------------------------------------------------------------------
                                                                        
------------------------------------------------------------------------
16537............         18825              22174             25100    
16540............         18828              22177             25103    
                          18831       ................         25106    
                          18834       ................         25109    
                          18837       ................         25112    
------------------------------------------------------------------------
\1\ Coast stations limited to a maximum transmitter power of 1 kW (PEP).

    (4) Applicants for these public coast frequencies specified in this 
section must submit a substantial showing of need based on the following 
factors:
    (i) A schedule of each currently licensed working frequency in the 
4000-27500 kHz band and the expected use of the proposed frequencies;
    (ii) For additional frequencies within the same MHz band, a factual 
showing of the 3 busiest hours of any 4 days within a consecutive 10 day 
period for each of the 2 months immediately preceding the filing of the 
application indicating that the applicant has used its

[[Page 95]]

currently assigned frequencies within the same MHz band an aggregate 
average of at least 40% of the 3 busiest hours of each day for 
exchanging communications;
    (iii) Any other facts that support the need for the proposed 
assignment, e.g., evidence of radio interference by another station 
located near enough to render a currently licensed frequency 
substantially unusable; and
    (iv) For simplex frequencies listed in paragraph (b)(3) of this 
section, an additional showing supporting the use of simplex rather than 
duplex frequencies for the proposed situation.
    (c) Working frequencies in the marine VHF 156-162 MHz band. The 
frequency pairs listed in the table below are available for assignment 
to public coast stations for public correspondence communications with 
ship stations and units on land.

------------------------------------------------------------------------
      Working Carrier Frequency Pairs in the 156-162 MHz Band 1, 4      
-------------------------------------------------------------------------
                                                 Carrier frequency (MHz)
                                               -------------------------
              Channel designator                    Ship        Coast   
                                                  transmit     transmit 
------------------------------------------------------------------------
24............................................      157.200      161.800
84............................................      157.225      161.825
25............................................      157.250      161.850
85\2\.........................................      157.275      161.875
26............................................      157.300      161.900
86............................................      157.325      161.925
27............................................      157.350      161.950
87............................................      157.375      161.975
28............................................      157.400      162.000
88\3\.........................................      157.425      162.025
------------------------------------------------------------------------
\1\ For special assignment of frequencies in this band in certain areas 
  of Washington State, the Great Lakes and the east coast of the United 
  States pursuant to arrangements between the United States and Canada, 
  see subpart B of this part.                                           
\2\ The frequency pair 157.275/161.875 MHz is available for assignment  
  on a primary basis to ship and public coast stations. In Alaska it is 
  also available on a secondary basis to private mobile repeater        
  stations.                                                             
\3\  Within 120 km (75 miles) of the United States/Canada border, in the
  area of the Puget Sound and the Strait of Juan de Fuca and its        
  approaches, the frequency 157.925 MHz is available for use by ship    
  stations for public correspondence communications only. One hundred   
  twenty kilometers (75 miles) from the United States/Canada border     
  157.425 MHz is available for intership and commercial communications. 
  Outside the Puget Sound area and its approaches and the Great Lakes,  
  157.425 MHz is available for communications between commercial fishing
  vessels and associated aircraft while engaged in commercial fishing   
  activities.                                                           
\4\ Except for the frequency pair 157.425/162.025 MHz, these frequencies
  may be shared with stations in the private land mobile radio service, 
  within the 48 contiguous states, under the terms of operation         
  described in Sec.  90.283 of this chapter.                            

    (d) Working frequencies in the Mississippi River System. The 
Mississippi River System includes the Mississippi River and connecting 
navigable waters other than the Great Lakes. The following simplex 
frequencies are available for assignment to public coast stations 
serving the Mississippi River System for radiotelephony communications. 
These simplex frequencies also are available for use by authorized ship 
stations within communication service range, whether or not the ship is 
operating within the confines of the Mississippi River System.

 Mississippi River System Working Frequencies; Carrier Frequencies (kHz)
------------------------------------------------------------------------
                                                                        
------------------------------------------------------------------------
2086 \1\...      4065        6209         8201       12362       16543  
2782.......      4089        6212         8213       12365       16546  
                 4116        6510         8725    ..........  ..........
                 4408        6513         8737    ..........  ..........
------------------------------------------------------------------------
\1\ Limited to a maximum transmitter output of 150 watts (PEP).         

    (e) Canada/U.S.A. channeling arrangement frequencies. The VHF 
frequencies assignable to ship and coast stations in the State of 
washington and their usage limitations purusant to the Canada/U.S.A. 
channeling arrangement are described in subpart B of this part.
[ 51 FR 31213 , Sept. 2, 1986, as amended at  52 FR 35245 , Sept. 18, 1987; 
 52 FR 48439 , Dec. 22, 1987;  56 FR 9894 , Mar. 8, 1991;  57 FR 26779 , June 
16, 1992;  58 FR 44953 , Aug. 25, 1993;  60 FR 35510 , July 10, 1995;  62 FR 40307 , July 28, 1997]


Goto Section: 80.369 | 80.373

Goto Year: 1996 | 1998
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