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.