MarComms - HF Distress and Safety Watchkeeping Schedule

HF Distress and Safety Watchkeeping Schedule

HF Radiotelephone (Single Sideband) – Distress and Initial Contact

This schedule was effective 010001Z JAN 05

Authorized for the handling of Distress message traffic and initial contact with United States Coast Guard Long Range Communication facilities.

KHz SHIP STATION	KHz COAST STATION	NMF	NMN	NMA	NMG
4125	4125	2300-1100Z	2300-1100Z	2300-1100Z	2300-1100Z
6215	6215	24 HRS	24 HRS	24 HRS	24 HRS
8291	8291	24 HRS	24 HRS	24 HRS	24 HRS
12290	12290	1100-2300Z	1100-2300Z	1100-2300Z	1100-2300Z

KHz SHIP STATION	KHz COAST STATION	Station and Schedule (UTC)
KHz SHIP STATION	KHz COAST STATION	NMC	NMO	NOJ
4125	4125	24 HRS	0600-1800Z	24 HRS
6215	6215	24 HRS	24 HRS	24 HRS
8291	8291	24 HRS	24 HRS
12290	12290	24 HRS	1800-0600Z

KHz SHIP STATION	KHz COAST STATION	Station and Schedule (UTC) Guam
6215	6215	0900-2100Z
12290	12290	2100-0900Z

Note: 8291 and 12290 KHz are available under NOJ upon request
Note: 16420 KHz is available at all stations upon request

HF Radiotelphone (single sideband) - Working Channels

These channels are available at all Coast Guard Long Range Communication Facilities for traffic handling purposes after initial contact is established on the HF Radiotelephone (Single Sideband) - Distress and Initial Contact frequencies.

ITU CHANNEL	KHz SHIP STATION	KHz COAST STATION
424	4134	4426
601	6200	6501
816	8240	8764
1205	12242	13089
1625	16432	17314

U.S. COAST GUARD COMMUNICATION STATIONS

Station	SELCAL	MARITIME MOBILE SERVICE IDENTITY
USCG Communications Area Master Station Atlantic, Chesapeake VA/NMN	1097	003669995
USCG Communications Area Master Station Atlantic, remotely keying transmitters at Boston/NMF	(1095)	003669991
USCG Communications Area Master Station Atlantic, remotely keying transmitters at Miami/NMA	--	003669997
USCG Communications Area Master Station Atlantic, remotely keying transmitters at New Orleans/NMG	--	003669998
USCG Communications Area Master Station Pacific, Pt. Reyes CA/NMC	1096	003669990
USCG Communications Area Master Station Pacific, remotely keying transmitters at Guam/NRV	1100 or 1096	--
USCG Communications Area Master Station Pacific, remotely keying transmitters at Honolulu HI/NMO	1099	003669993
USCG Communications Station Kodiak AK/NOJ	1106	003669899
USCG Marianas Section Guam	--	003669994

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.

HF RADIOTELEX (SITOR OR NARROW BAND DIRECT PRINTING)

NMN - Portsmouth
ITU CHANNEL	KHz COAST STATION	KHz SHIP STATION	Schedule (UTC)
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 CHANNEL	KHz COAST STATION	KHz SHIP STATION	Schedule (UTC)
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- Pt. Reyes CA
ITU CHANNEL	KHz COAST STATION	KHz SHIP STATION	Schedule (UTC)
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 - Pt. Reyes CA, using Guam remote transmitter/receiver control (NRV)
ITU CHANNEL	KHz COAST STATION	KHz SHIP STATION	Schedule (UTC)
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 (remoted from NMC Pt. Reyes CA)
ITU CHANNEL	KHz COAST STATION	KHz SHIP STATION	Schedule (UTC)
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 (message must be in standard format)	MOM11+ MSG+
AMV+	AMVER MESSAGE (message must be in standard format)	MOM01+ MSG+
MED+	MEDICAL EMERGENCIES (signals an alarm at the coast station)	MOM07+ MSG+
URG+	SHIPBOARD DISTRESS/EMERGENCY (signals an alarm at the coast station)	MOM20+ MSG+
TFC+	MISCELLANEOUS ROUTINE MESSAGES	MOM16+ MSG+
VES+	U.S. FISHERIES, POLLUTION OR OTHER REQUIRED VESSEL REPORT	MOM13+ MSG+
PLD+	PLEAD REQUEST TO PACIFIC MISSLE RANGE PT MUGU	MOM19+MSG+
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, Pt. Reyes/NMC, Honolulu HI/NMO, Kodiak AK/NOJ
2187.5 kHz	Coast Guard will normally respond to DSC test calls if acknowledgment is requested. Reports of uncancelled or unacknowledged inadvertently transmitted distress calls will be forwarded to the Federal Communications Commission.
4207.5
6312
8414.5
12577
16804.5

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

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