NEW SSB Frequencies (2005):
Effective 010001Z Jan 05, the Coast Guard will change the radio frequencies used for initial Single Sideband voice contact with its long range communication facilities as follows:
OLD ~TO~ NEW
4134/4426 KHz ~ To New 4125/4125 KHz
6200/6501 KHz ~ To New 6215/6215 KHz
8240/8764 KHz ~ To New 8291/8291 KHz
12242/13089 KHz ~ To New 12290/12290 KHz
Note: Frequencies are carrier frequencies and in kilohertz.
Use of these frequencies is authorized for initial contact and distress
traffic only. The frequency for follow-on non-distress-related Single
Sideband voice communications
shall be as mutually arranged on initial contact.
The Coast Guard operates high seas communication stations to communicate with ships throughout the Atlantic and Pacific Ocean
and provide a variety of services to the maritime public. Services include:
watchkeeping for distress
information broadcasts http://www.navcen.uscg.gov/marcomms/gmdss/msi.htm