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Code of Federal Regulations
Title 47 - TELECOMMUNICATIONChapter I - FEDERAL COMMUNICATIONS COMMISSIONSubchapter D - SAFETY AND SPECIAL RADIO SERVICESPart 80 - STATIONS IN THE MARITIME SERVICESSubpart H - FREQUENCIES
RADIOTELEPHONY
Section 80.371 - Public correspondence frequencies

47 C.F.R. § 80.371

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Current through October 31, 2024
Section 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
Region Carrier frequency (kHz)
Ship transmit Coast transmit
East Coast:2031.52490.0
2118.01 2514.0
2126.02522.0
2142.02538.0
2166.02558.0
2198.02590.0
2366.02450.0
2382.05 2482.0
2390.02566.0
2400.02400.0
2406.02442.0
2406.04 2506.0
West Coast:2003.02450.0
2009.02442.0
2009.02566.0
2031.52566.0
2126.02522.0
2206.02598.0
2382.02466.0
2406.02506.0
2430.05 2482.0
Gulf Coast:2009.02466.0
2134.02530.0
2142.02538.0
1 2158.012550.0
2166.02558.0
2206.02598.0
2366.02450.0
2382.05 2482.0
2430.02572.0
2458.02506.0
Great Lakes2:2118.02514.0
2158.02550.0
2206.02582.0
Alaska2131.05 2309.0
2134.02312.0
2237.02397.0
2240.02400.0
Hawaii2134.02530.0
Caribbean:2009.02506.0
3 2086.02585.0
2134.02530.0
Guam2009.02506.0

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 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.

4 Harmful interference must not be caused to any coast station in the Caribbean region.

5But see section 80.373(c)(3) of this chapter.

(b)Working frequencies in the 4000-27500 kHz band. This paragraph describes the working carrier frequencies in the 4000-27500 kHz band. With respect to frequencies that are assignable in more than one geographical area, once the frequency is assigned to one licensee, any subsequent license will be authorized on a secondary, non-interference basis with respect to the incumbent license's existing operation. If the first licensee later seeks authorization to operate in an additional geographic area, such authorization will be on a secondary, non-interference basis to other co-channel licensees.
(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. The specific frequency assignment available to public coast stations for a particular geographic area is indicated by an "x" under the appropriate column. The allotment areas are in accordance with the "Standard Defined Areas" as identified in the International Radio Regulations, Appendix 25 Planning System, and indicated in the preface to the International Frequency List (IFL).

Working Carrier Frequency Pairs in the 4000-27500 kHz Band

ChannelShip transmitCoast transmitUSA-EUSA-WUSA-SUSA-CVIRHWAALSPTRGUM
40140654357xxxx
40340714363xxxxxx
40440744366xxxx
40540774369xxxxxx
40940894381xxxx
41040924384xx
41140954387xxx
41240984390xxx
41441044396xxxx
41641104402xxxx
41741134405xxxx
41841164408xx
41941194411xxxxx
42241284420xxx
42341314423xxxxx
42441344426x
42741434435xxxxxxx
42840604351x
60462096510xxxxxxxx
60562126513x
60762186519x
80281988722xxxx
80382018725x
80482048728xxx
80582078731xxx
80782138737x
80882168740xxxxx
80982198743xx
81082228746xxx
81182258749xxx
81482348758xxxxxx
81582378761xxx
81782438767x
81982498773x
82282588782xxx
82482648788xxx
82582678791xxx
82682708794xxx
82982798803xxxx
83082828806xx
83182858809xxx
83681138713x
83781288716x
12011223013077xxx
12021223313080xxxx
12031223613083xxxxxx
12061224513092xxx
12081225113098xx
12091225413101xxxx
12101225713104xxxx
12111226013107xxxxx
12121226313110xxxxx
12151227213119xxx
12171227813125x
12221229313140x
12231229613143xxxx
12251230213149xx
12261230513152xxx
12281231113158xxx
12291231413161x
12301231713164xxxx
12331232613173x
12341232913176xxxx
12351223213179x
12361233513182x
12371233813185xxxx
16011636017242xxxx
16021636317245xxx
16031636617248xxxx
16051637217254xx
16071637817260xxxx
16091638417266xxx
16101638717269xxx
16111639017272xxx
16161640517287xxxxx
16201641717299xx
16241642917311xxx
16261643517317x
16311645017332x
16321645317335xxxx
16411648017362xxx
16421648317365xxxxxxxx
16431648617368x
16441648917371xxxxxx
16451649217374x
16461649517377x
16471649817380xxxxx
16481650117383xxxxxx
18011878019755xxxxxxxx
18021878319758xxxxx
18031878619761xxxxxxx
18041878919764xxxx
18051879219767xx
18071879819773x
18081880119776xxxxxxxx
22012200022696xxxx
22052201222708xxx
22102202722723x
22142203922735xxx
22152204222738xxx
22162204522741xxx
22222206322759x
22232206622762xxxxxx
22272207822774xxx
22282208122777xx
22312209022786xxxx
22362210522801xx
22372210822804xxx
22412212022816xxxxxxxx
22422212322819x
22432212622822xxxxxxxx
22442212922825xxx
22452213222828xxxx
22462213522831x
22472213822834xxxxxxx
25012507026145xxxxxx
25022507326148xxxxxxxx
25032507626151x
25042507926154xxxxxxxx

(2) The following table specifies the non-paired carrier frequencies that are available for assignment to public coast stations for simplex operations. 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 Band1 Carrier Frequencies (kHz)]

165372188252217425100
16540188282217725103
1883125106
1883425109
1883725112

1 Coast stations limited to a maximum transmitter power of 1 kW (PEP).

2 The alternative carrier frequency 16537 kHz may be used by ship stations and coast stations for calling on a simplex basis, provided that the peak envelope power does not exceed 1 kW.

(c)Working frequencies in the marine VHF 156-162 MHz band.
(1)
(i) The frequency pairs listed in this paragraph are available for assignment to public coast stations for communications with ship stations and units on land.

Working Carrier Frequency Pairs in the 156-162 MHz Band1

Channel designatorCarrier Frequency (MHz)
Ship transmit Coast transmit
24157.200161.800
84157.225161.825
255157.250161.850
852157.275161.875
26157.300161.900
86157.325161.925
27157.350161.950
873157.375161.975
28157.400162.000
884157.425162.025

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 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 The frequency 161.975 MHz is available only for Automatic Identification System communications. In VPCSAs 10-42, site-based stations licensed to operate on frequency 161.975 MHz prior to March 2, 2009 may continue to operate on a co-primary basis on that frequency until March 2, 2024.

4 The frequency 162.025 MHz is available only for Automatic Identification System communications. One hundred twenty kilometers (75 miles) from the United States/Canada border, the frequency 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.

5 In VPCSAs 10-42, the working carrier frequency pair 157.250/161.850 MHz (Channel 25) is not available for assignment under part 80.

(ii) Service areas in the marine VHF 156-162 MHz band are VHF Public Coast Service Areas (VPCSAs). As listed in the table in this paragraph (c)(1)(ii), VPCSAs are based on, and composed of one or more of, the U.S. Department of Commerce's 172 Economic Areas (EAs). See 60 FR 13114 (March 10, 1995). In addition, the Commission shall treat Guam and the Northern Mariana Islands, Puerto Rico and the United States Virgin Islands, American Samoa, and the Gulf of Mexico as EA-like areas, and has assigned them EA numbers 173-176, respectively. Maps of the EAs and VPCSAs are available for public inspection through the Federal Communications Commission's Reference Information Center, Tel: 1-888-225-5322. In addition to the EAs listed in the table in this paragraph (c)(1)(ii), each VPCSA also includes the adjacent waters under the jurisdiction of the United States. In VPCSAs 10-42, the working carrier frequency pair 157.250 MHz/161.850 MHz (Channel 25) is not available for assignment under this part.

VHF Public coast station areas (VPCSAs)
VPCSAs EAs
1 (Northern Atlantic)1-5, 10
2 (Mid-Atlantic)9, 11-23, 25, 42, 46
3 (Southern Atlantic)24, 26-34, 37, 38, 40, 41, 174
4 (Mississippi River)34, 36, 39, 43-45, 47-53, 67-107, 113, 116-120, 122-125, 127, 130-134, 176
5 (Great Lakes)6-8, 54-66, 108, 109
6 (Southern Pacific)160-165
7 (Northern Pacific)147, 166-170
8 (Hawaii)172, 173, 175
9 (Alaska)171
10 (Grand Forks)110
11 (Minot)111
12 (Bismarck)112
13 (Aberdeen)114
14 (Rapid City)115
15 (North Platte)121
16 (Western Oklahoma)126
17 (Abilene)128
18 (San Angelo)129
19 (Odessa-Midland)135
20 (Hobbs)136
21 (Lubbock)137
22 (Amarillo)138
23 (Santa Fe)139
24 (Pueblo)140
25 (Denver-Boulder-Greeley)141
26 (Scottsbluff)142
27 (Casper)143
28 (Billings)144
29 (Great Falls)145
30 (Missoula)146
31 (Idaho Falls)148
32 (Twin Falls)149
33 (Boise City)150
34 (Reno)151
35 (Salt Lake City-Ogden)152
36 (Las Vegas)153
37 (Flagstaff)154
38 (Farmington)155
39 (Albuquerque)156
40 (El Paso)157
41 (Phoenix-Mesa)158
42 (Tucson)159

(iii) Subject to paragraph (c)(3) of this section, each licensee may also operate on 12.5 kHz offset frequencies in areas where the licensee is authorized on both frequencies adjacent to the offset frequency, and in areas where the licensee on the other side of the offset frequency consents to the licensee's use of the adjacent offset frequency. Coordination with Canada is required for offset operations under any circumstance in which operations on either adjoining 25 kHz channel would require such coordination. See§ 80.57 of this part.
(2) Any recovered channel pairs will revert automatically to the holder of the VPCSA license within which such channels are included, except the channel pairs listed in the table in paragraph (c)(1)(i) of this section. Those channel pairs, and any channel pairs recovered where there is no VPCSA licensee, will be retained by the Commission for future licensing.
(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 pursuant to the Canada/U.S.A. channeling arrangement are described in subpart B of this part.
(4) Subject to the requirements of § 1.924 of this chapter and § 80.21 , each VPCSA licensee may place stations anywhere within its region without obtaining prior Commission approval provided:
(i) It provides to co-channel coast station incumbent licensees, and incumbent Private Land Mobile Radio licensees authorized under part 90 of this chapter on a primary basis, protection as defined in subpart P of this part. VPCSA licensees that share a common border may either distribute the available frequencies upon mutual agreement or request that the Commission assign frequencies along the common border.
(ii) The locations and/or technical parameters of the transmitters are such that individual coordination of the channel assignment(s) with a foreign administration, under applicable international agreements and rules in this part, is not required.
(iii) For any construction or alteration that would exceed the requirements of § 17.7 of this chapter, licensees must notify the appropriate Regional Office of the Federal Aviation Administration (FAA Form 7460-1) and file a request for antenna height clearance and obstruction marking and lighting specifications (FCC Form 854) with the FCC, Attn: Information Processing Branch, 1270 Fairfield Rd., Gettysburg, PA 17325-7245.
(iv) The transmitters must not have a significant environmental effect as defined by §§ 1.1301 through 1.1319 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)

208614065620982011236216543
27824089621282131236516546
411665108725
440865138737

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.

47 C.F.R. §80.371

51 FR 31213, Sept. 2, 1986
85 FR 64409 , 10/13/2020; 88 FR 21449 , 4/10/2023

For FEDERAL REGISTER citations affecting §80.371, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.