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HF Distress and USCG Contact Frequencies

*** The U.S. Coast Guard ceased monitoring all High Frequency (HF) shortwave voice distress frequencies within the contiguous United States and Hawaii on 7 February 2022.  HF voice distress watchkeeping continue unaffected in Alaska and Guam. HF watchkeeping on HF distress and safety digital selective calling (DSC) frequencies also continue unaffected at all locations.  See Marine Safety Information Bulletin 10 -21 ***

*** SAFETY ALERT - KNOW YOUR COMMUNICATIONS EQUIPMENT! - August 3rd, 2017 ***

HF RADIOTELEPHONE (SINGLE SIDEBAND) – DISTRESS AND INITIAL CONTACT

THIS SCHEDULE IS/WAS EFFECTIVE JULY 2017

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 Station and Schedule (UTC)
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)
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 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: 12290 KHz are available under NOJ upon request
Note: 16420 KHz is available at all stations upon request

HF RADIOTELEPHONE (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.  These coast station frequencies are also used for scheduled broadcasts of marine weather forecasts.

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 MARITIME MOBILE SERVICE IDENTITY
Universal US Coast Guard shore-based identity 003669999
USCG Communications Command, Chesapeake VA/NMN 003669995
USCG Communications Command, remotely keying transmitters at Boston/NMF 003669991
USCG Communications Command, remotely keying transmitters at Miami/NMA 003669997
USCG Communications Command, remotely keying transmitters at New Orleans/NMG 003669998
USCG Communications Command, remotely keying transmitters at Pt. Reyes CA/NMC 003669990
USCG Communications Command, remotely keying transmitters at Honolulu HI/NMO 003669993
USCG Communications Command, remotely keying transmitters at Kodiak AK/NOJ 003669899
USCG Sector Guam 003669994

 


HF DIGITAL SELECTIVE CALLING
 
Portsmouth/NMN, Boston/NMF, Miami/NMA, New Orleans/NMG, Pt. Reyes/NMC, Honolulu HI/NMO, Kodiak AK/NOJ
4207.5 DSC test calls on 4207.5 kHz will be automatically acknowledged from any of the US Coast Guard Communication Stations listed above EXCEPT USCG SECTOR Guam.
6312
8414.5
12577
16804.5

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

HF RADIOTELEX (SITOR OR NARROW BAND DIRECT PRINTING)

Effective 31 March 2012, the Coast Guard
discontinued ALL ship/Shore/Ship SITOR services except for marine information broadcasts.