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.