ITU and USCG Maritime Allocation List

                        Current as of May, 1998
                 Some information from US Coast Guard

           All voice is USB, though some AM persists on 2 MHz.

               2 MHz Marine Radiotelephone Frequencies

                            May, 1998

            Intership Safety and Operational Communications.

 kHz                         Geographic Area

2003.0     Great Lakes only
2082.5     All Areas.  Also, intership non-commercial fishing.
2093.0     All Areas.
2142.0     Pacific Coast, daily, south of 42 deg. N
2182.0     Distress, safety and calling
2203.0     Gulf of Mexico.  Also intership non-commercial fishing.
2214.0     All Areas.
2635.0     ITU Regions 2-3 (ITU RR 4193).  Not in FCC rules.
2638.0     All Areas.
2670.0     U.S. Coast Guard Liaison and Maritime Safety Broadcasts
2738.0     All Areas, except Great Lakes.
2830.0     Gulf of Mexico only.

                    Business and Operational Frequencies

kHz                         Geographic Area

2065.0     All Areas.
2079.0     All Areas.
2096.5     All Areas.
3023.0     Government shore, ship and aircraft stations for search
           and rescue coordination.

Reference: FCC Regulations, 47 CFR 80.373(b) and (c), except as noted.  
Assignments are required before these frequencies can be used by land 
stations.  Duplex channels are not available in this band.

Created: 6 May 1998
Commandant (G-SCT)
U.S. Coast Guard
Washington DC 20593

======================================================================

                       Maritime Duplex Channels

                             May, 1998

This list, courtesy US Coast Guard, includes slight changes made at WRC-
97 to implement the GMDSS safety channels.

The ITU provides for shared simplex use of the ship side, as is common 
on 4125 kHz.  Shore stations can be licensed on the coastal side, and 
thus be protected against interference.

4 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     401            4357 kHz            4065 kHz
     402            4360                4068
     403            4363                4071
     404            4366                4074
     405            4369                4077

     406            4372                4080
     407            4375                4083
     408            4378                4086
     409            4281                4089
     410            4384                4092

     411            4387                4095
     412            4390                4098
     413            4393                4101
     414            4396                4104
     415            4399                4107

     416            4402                4110
     417            4405                4113
     418            4408                4116
     419            4411                4119
     420            4414                4122

     421            4417                4125 (See Note below) 
     422            4420                4128
     423            4423                4131
     424            4426                4134 (USCG Calling)
     425            4429                4137

     426            4432                4140
     427            4435                4143
     428            4351              (varies)
     429            4354              (varies) 

Note regarding channel 421: 4125 kHz is used for calling, and is for 
GMDSS distress and safety communications, in the simplex mode. Distress 
and safety communications have priority over all other communications. 
The USCG urges that channel 421 not be used in the duplex mode. 
Updated: 10 April 1998

6 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     601            6501 (kHz)          6200 (kHz)(USCG Calling)
     602            6504                6203
     603            6507                6206
     604            6510                6209
     605            6513                6212
     606            6516                6215 (Calling; distress 
                                              & safety working on
                                              6215 kHz simplex)
     607            6519                6218
     608            6522                6221

8 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     801            8719 (kHz)          8195 (kHz)
     802            8722                8198
     803            8725                8201
     804            8728                8204
     805            8731                8207

     806            8734                8210
     807            8737                8213
     808            8740                8216
     809            8743                8219
     810            8746                8222

     811            8749                8225
     812            8752                8228
     813            8755                8231
     814            8758                8234
     815            8761                8237

     816            8764                8240 (USCG Calling)
     817            8767                8243
     818            8770                8246
     819            8773                8249
     820            8776                8252

     821            8779                8255 (Calling)
     822            8782                8258
     823            8785                8261
     824            8788                8264
     825            8791                8267

     826            8794                8270
     827            8797                8273
     828            8800                8276
     829            8803                8279
     830            8806                8282

     831            8809                8285
     832            8812                8288
     833            8291                8291
     834            8707              (varies)
     835            8710              (varies)

     836            8713              (varies)
     837            8716              (varies)

                       12 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     1201           13,077 kHz          12,230 kHz
     1202           13,080              12,233
     1203           13,083              12,236
     1204           13,086              12,239
     1205           13,089              12,242 (USCG Calling)

     1206           13,092              12,245
     1207           13,095              12,248
     1208           13,098              12,251
     1209           13,101              12,254
     1210           13,104              12,257

     1211           13,107              12,260
     1212           13,110              12,263
     1213           13,113              12,266
     1214           13,116              12,269
     1215           13,119              12,272

     1216           13,122              12,275
     1217           13,125              12,278
     1218           13,128              12,281
     1219           13,131              12,284
     1220           13,134              12,287

     1221           13,137              12,290 (See Note below)
     1222           13,140              12,293
     1223           13,143              12,296
     1224           13,146              12,299
     1225           13,149              12,302

     1226           13,152              12,305
     1227           13,155              12,308
     1228           13,158              12,311
     1229           13,161              12,314
     1230           13,164              12,317

     1231           13,167              12,320
     1232           13,170              12,323
     1233           13,173              12,326
     1234           13,176              12,329
     1235           13,179              12,332

     1236           13,182              12,335
     1237           13,185              12,338
     1238           13,188              12,341
     1239           13,191              12,344
     1240           13,194              12,347

     1241           13,197              12,3500

Note regarding channel 1221: The ITU, at its 1997 World Radio 
Conference, urged Administrations to move, where relevant, their coast 
stations calling frequency from channel 1221 to any other suitable HF 
channel, and to request ships under its jurisdiction to refrain from 
using the frequency 12290 kHz for non-safety calling.
(WRC 97 Rec COM 4-1) 
Updated 10 April 1998

                       16 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     1601           17,242 kHz          16,360 kHz
     1602           17,245              16,363
     1603           17,248              16,366
     1604           17,251              16,369
     1605           17,254              16,372

     1606           17,257              16,375
     1607           17,260              16,378
     1608           17,263              16,381
     1609           17,266              16,384
     1610           17,269              16,387

     1611           17,272              16,390
     1612           17,275              16,393
     1613           17,278              16,396
     1614           17,281              16,399
     1615           17,284              16,402

     1616           17,287              16,405
     1617           17,290              16,408
     1618           17,293              16,411
     1619           17,296              16,414
     1620           17,299              16,417

     1621           17,302              16,420 (See Note below)
     1622           17,305              16,423
     1623           17,308              16,426
     1624           17,311              16,429
     1625           17,314              16,432 (USCG Calling)

     1626           17,317              16,435
     1627           17,320              16,438
     1628           17,323              16,441
     1629           17,326              16,444
     1630           17,329              16,447

     1631           17,332              16,450
     1632           17,335              16,453
     1633           17,338              16,456
     1634           17,341              16,459
     1635           17,344              16,462

     1636           17,347              16,465
     1637           17,350              16,468
     1638           17,353              16,471
     1639           17,356              16,474
     1640           17,359              16,477

     1641           17,362              16,480
     1642           17,365              16,483
     1643           17,368              16,486
     1644           17,371              16,489
     1645           17,374              16,492

     1646           17,377              16,495
     1647           17,380              16,498
     1648           17,383              16,501
     1649           17,386              16,504
     1650           17,389              16,507

     1651           17,392              16,510
     1652           17,395              16,513
     1653           17,398              16,516
     1654           17,401              16,519
     1655           17,404              16,522

     1656           17,407              16,525

Note regarding channel 1621: The ITU, at its 1997 World Radio 
Conference, urged Administrations to move, where relevant, their coast 
stations calling frequency from channel 1621 to any other suitable HF 
channel, and to request ships under its jurisdiction to refrain from 
using the frequency 16420 kHz for non-safety calling.
(WRC 97 Rec COM 4-1)
Updated: 10 April 1998

18/19 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     1801           19,755 kHz          18,780 kHz
     1802           19,758              18,783
     1803           19,761              18,786
     1804           19,764              18,789
     1805           19,767              18,792

     1806           19,770              18,795 (Calling)
     1807           19,773              18,798
     1808           19,776              18,801
     1809           19,779              18,804
     1810           19,782              18,807

     1811           19,785              18,810
     1812           19,788              18,813
     1813           19,791              18,816
     1814           19,794              18,819
     1815           19,797              18,822

22 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     2201           22,696 kHz          22,000 kHz
     2202           22,699              22,003
     2203           22,702              22,006
     2204           22,705              22,009
     2205           22,708              22,012

     2206           22,711              22,015
     2207           22,714              22,018
     2208           22,717              22,021
     2209           22,720              22,024
     2210           22,723              22,027

     2211           22,726              22,030
     2212           22,729              22,033
     2213           22,732              22,036
     2214           22,735              22,039
     2215           22,738              22,042

     2216           22,741              22,045
     2217           22,744              22,048
     2218           22,747              22,051
     2219           22,750              22,054
     2220           22,753              22,057

     2221           22,756              22,060 (Calling)
     2222           22,759              22,063
     2223           22,762              22,066
     2224           22,765              22,069
     2225           22,768              22,072

     2226           22,771              22,075
     2227           22,774              22,078
     2228           22,777              22,081
     2229           22,780              22,084
     2230           22,783              22,087

     2231           22,786              22,090
     2232           22,789              22,093
     2233           22,792              22,096
     2234           22,795              22,099
     2235           22,798              22,102

     2236           22,801              22,105
     2237           22,804              22,108
     2238           22,807              22,111
     2239           22,810              22,114
     2240           22,813              22,117

     2241           22,816              22,120
     2242           22,819              22,123
     2243           22,822              22,126
     2244           22,825              22,129
     2245           22,828              22,132

     2246           22,831              22,135
     2247           22,834              22,138
     2248           22,837              22,141
     2249           22,840              22,144
     2250           22,843              22,147

     2251           22,846              22,150
     2252           22,849              22,153
     2253           22,852              22,156

25/26 MHz Duplex Channels

ITU Channel No.     Coast Transmit      Ship Transmit

     2501           26,145 kHz          25,070 kHz
     2502           26,148              25,073
     2503           26,151              25,076
     2504           26,154              25,079
     2505           26,157              25,082

     2506           26,160              25,085
     2507           26,163              25,088
     2508           26,166              25,091
     2509           26,169              25,094
     2510           26,172              25,097 (Calling) 

======================================================================

       HF Single Sideband Maritime Radiotelephone Channels

                      Simplex Channels

These frequencies are shared and are not available for the exclusive use
of any station. 

4 MHz Band     6 MHz Band     8 MHz Band     12 MHz Band

4146 kHz       6224 kHz       8294 kHz       12,353 kHz
4149           6227           8297           12,356
               6230                          12,359
                                             12,362
                                             12,365

16 MHz         18/19 MHz Band 22 MHz Band    25/26 MHz Band

16,528 kHz     18,825 kHz     22,159 kHz     25,100 kHz
16,531         18,828         22,162         25,103
16,534         18,831         22,165         25,106
16,537         18,834         22,168         25,109
16,540         18,837         22,171         25,112

16,543         18,840         22,174         25,115
16,546         18,843         22,177         25,118

        Maritime Channels Shared with the Fixed Service

The following channels in the band 4000-4063 kHz and 8100-8195 kHz may 
be used:

 - for supplementing ship-to-shore channels for duplex operation;
 - for intership simplex (single-frequency) and cross-band operation;
 - for cross-band working with coast stations;
 - for duplex operation with coast stations working in the band 
   4438-4650 kHz or 
   with Channels 834, 835, 836 and 837;
 - for ship-to-shore or shore-to-ship simplex operations (8100-8195 kHz
   only).

                          4 MHz Carrier    8 MHz Carrier 
   Channel No.            Frequency kHz    Frequency kHz

         1                      4000            8101    
         2                      4003            8104
         3                      4006            8107
         4                      4009            8110
         5                      4012            8113
         6                      4015            8116
         7                      4018            8119
         8                      4021            8122
         9                      4024            8125
        10                      4027            8128
        11                      4030            8131
        12                      4033            8134
        13                      4036            8137
        14                      4039            8140
        15                      4042            8143
        16                      4045            8146
        17                      4048            8149
        18                      4051            8152
        19                      4054            8155
        20                      4057            8158
        21                      4060            8161
        22                       --             8164
        23                       --             8167
        24                       --             8170
        25                       --             8173
        26                       --             8176
        27                       --             8179
        28                       --             8182
        29                       --             8185
        30                       --             8188
        31                       --             8191

Global Maritime Distress & Safety System Radiotelephone Channels

These simplex frequencies are used for distress and safety
communications, and (except for 2182 kHz) are not normally
guarded.

          2182 kHz       8291 kHz
          4125           12,290
          6215           16,420

=====================================================================

                 How To Contact the US Coast Guard

                             May, 1998

As part of the new COMMSYS 2000, USCG's implementation of the 
international GMDSS, most COMMSTAs are being automated and remoted to 
CAMSPAC Point Reyes (near San Francisco) or CAMSLANT Chesapeake (VA).

While all radio watches for GMDSS compulsory ships end as of 1 Feb 1999, 
many coast guards will continue to listen on 2182 kHz.  USCG has 
announced its intention to guard VHF Channel 16 indefinitely, for safety 
reasons.

Certain GMDSS implementations described in the following document are 
delayed pending USCG review of problems with DSC, including the 
excessive false alarms.

Check GMDSS coverage charts to see the status of your area.  -hugh

Commandant (G-SCT-2)
U.S. Coast Guard
Updated: 13 February 1998
Washington DC 20593

U.S. COAST GUARD HF DISTRESS AND SAFETY RADIO WATCHKEEPING SCHEDULE

     The SELCAL number is used for radiotelex (sitor).  The Maritime 
     Mobile Service Identity (MMSI) is used for digital selective 
     calling and may also be used for radiotelex.

     Note that except for the digital selective calling channels listed 
at the bottom of this page, the frequency channels described here are 
generally not Global Maritime Distress & Safety System (GMDSS) distress 
and safety channels.  The Coast Guard does NOT monitor GMDSS 
radiotelephone or radiotelex channels.  

U.S. COAST GUARD COMMUNICATION STATIONS

Station: USCG Communications Area Master Station Atlantic, Chesapeake 
VA/NMN

     SELCAL: 1097              MARITIME MOBILE SERVICE IDENTITY: 
003669995

Station: USCG Communications Area Master Station Atlantic, remotely 
keying transmitters at Boston/NMF

     SELCAL: (1095)            MARITIME MOBILE SERVICE IDENTITY: 
003669991

Station: USCG Communications Area Master Station Atlantic, remotely 
keying transmitters at Miami/NMA

     SELCAL:  --               MARITIME MOBILE SERVICE IDENTITY: 
003669997

Station: USCG Communications Station New Orleans/NMG

     SELCAL:  --               MARITIME MOBILE SERVICE IDENTITY: 
003669998           

Station: USCG Communications Area Master Station Pacific, 
Pt. Reyes CA/NMC

     SELCAL: 1096              MARITIME MOBILE SERVICE IDENTITY: 
003669990

Station: USCG Communications Area Master Station Pacific, remotely 
keying transmitters at Guam/NRV

     SELCAL: 1100 or 1096      MARITIME MOBILE SERVICE IDENTITY:     --

Station: USCG Communications Station Honolulu HI/NMO

     SELCAL: 1099              MARITIME MOBILE SERVICE IDENTITY: 
003669993

Station: USCG Communications Station Kodiak AK/NOJ

     SELCAL: 1106              MARITIME MOBILE SERVICE IDENTITY: 
003669899

Station: USCG Marianas Section Guam

                               MARITIME MOBILE SERVICE IDENTITY: 
003669994

HF RADIOTELEPHONE (SINGLE SIDEBAND) - Contact and Long Range 
     Liaison

ITU     KHz SHIP KHz COAST         Station and Schedule (UTC)
CHANNEL STATION  STATION      NMN            NMN/NMF            NMG

 424     4134    4426         2300-1100      2230-1030      24 HRS
 601     6200    6501         24 HRS         24 HRS         24 HRS
 816     8240    8764         24 HRS         24 HRS         24 HRS
1205    12242   13089         1100-2300      1030-2230      24 HRS
1625    16432   17314              ( -- on request only --)

ITU     KHz SHIP KHz COAST         Station and Schedule (UTC)
CHANNEL STATION  STATION      NMC            NMO            NOJ

  -      4125    4125          -             -              24 HRS
 424     4134    4426         24 HRS         0600-1800      on request
 601     6200    6501         24 HRS         24 HRS         24 HRS
 816     8240    8764         24 HRS         24 HRS         on request
1205    12242   13089         24 HRS         1800-0600      on request
1625    16432   17314              ( -- on request only --)

ITU     KHz SHIP KHz COAST           Station and Schedule (UTC)
CHANNEL STATION  STATION           Guam             NMN/NMA

 601     6200    6501              0900-2100        24 HRS
1205    12242   13089              2100-0900        24 HRS
1625    16432   17314                  -            24 HRS

HF RADIOTELEX (SITOR OR NARROW BAND DIRECT PRINTING)

NMN - Portsmouth

     ITU       KHz COAST KHz SHIP               Schedule (UTC)
     CHANNEL   STATION   STATION

    404        4212      4174                     On request 
    604        6316      6264.5                   2300-1100
    824        8428      8388                     24 HRS
   1227       12592.5   12490                     24 HRS
   1627       16819.5   16696.5                   24 HRS   
   2227       22389.5   22297.5                   1100-2300   

NMO - Honolulu

     ITU       KHz COAST KHz SHIP                 Schedule (UTC)
     CHANNEL   STATION   STATION

    404        4212      4174                     On request 
    604        6316      6264.5                   On request
    827        8429.5    8389.5                   24 HRS
   1220       12589     12486.5                   24 HRS
   1627       16819.5   16696.5                   On request
   2227       22389.5   22297.5                   Daytime   

NMC- San Francisco

     ITU       KHz COAST KHz SHIP               Schedule (UTC)
     CHANNEL   STATION   STATION

     412       4215.5    4178                     On request 
     620       6323.5    6272.5                   Nighttime 
     820       8426      8386                     24 HRS
    1242      12600     12497.5                   On request 
    1620      16816.5   16693                     Daytime   
    2220      22386     22294                     On request

NMC - San Francisco, using Guam remote transmitter/receiver control 
(NRV)

ITU           KHz COAST  KHz SHIP                 Schedule (UTC)
CHANNEL       STATION    STATION

     412       4215.5    4178                     On request 
     612       6319.5    6268.5                   On request
     812       8422      8382                     Nighttime
    1212      12585     12482.5                   24 HRS     
    1612      16812.5   16689                     24 HRS    
    2212      22382     22290                     Daytime    

NOJ - Kodiak

ITU           KHz COAST  KHz SHIP                 Schedule (UTC)
CHANNEL       STATION    STATION

    407        4213.5    4175.5                   Nighttime  
    607        6317.5    6266                     24 HRS    
    807        8419.5    8379.5                   Daytime

           RADIOTELEX SERVICES AVAILABLE

COMMAND               EXPLANATION                    RESPONSE

OBS+                  WEATHER OBSERVATION            MOM11+ MSG+
                        (message must be in standard format)
AMV+                  AMVER MESSAGE                  MOM01+ MSG+
                        (message must be in standard format)
MED+                  MEDICAL EMERGENCIES            MOM07+ MSG+
                        (signals an alarm at the coast station)
URG+                  SHIPBOARD DISTRESS/EMERGENCY   MOM20+ MSG+
                        (signals an alarm at the coast station)
TFC+                  MISCELLANEOUS ROUTINE          MOM16+ MSG+
                        MESSAGES
VES+                  U.S. FISHERIES, POLLUTION      MOM13+ MSG+
                        OR OTHER REQUIRED VESSEL REPORT
OPR+                  OPERATOR ASSISTANCE            
FREQ+                 FREQUENCY GUARD SCHEDULE LIST
MSG+                  DOWNLOADS SHORE-TO-SHIP MESSAGES
                        (limited to government vessels)
BRK+                  BREAK OFF COMMUNICATIONS
HELP+                 LIST OF AVAILABLE COMMANDS

HF DIGITAL SELECTIVE CALLING

Portsmouth/NMN, Boston/NMF, Miami/NMA. New Orleans/NMG (after February 
97)

 2187.5 kHz                  Coast Guard will normally respond to DSC    
 4207.5                      test calls if acknowledgment is requested.  
 6312                        Reports of uncancelled or unacknowledged 
 8414.5                      inadvertently transmitted distress calls
12577                        will be forwarded to the Federal 
16804.5                      Communications Commission.

          Note: For radiotelex and digital selective calling, 
          frequencies listed are assigned.  Carrier frequency is 
          located 1700Hz below the assigned frequency.

                                 -end-