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Here is a grouping of the channels and a brief description of their use.
Channels 5, 12, 14, 20, 65, 66, 73, 74, 77: Port Operations - Can
be used by any vessel for communications between ships and ship-to-
coast stations for messages relating to operational handling, move-
ment and safety of vessels in or near ports, locks or waterways.
Channel 77 is limited to communications to and from commercial
pilots in regard to movement and docking of vessels. Channels 11,12,
13, and 14 are used for traffic service on the Great Lakes, St. Lawrence
Seaway and designated major ports.
Channel 6: Intership Safety - For use by any vessel for communicat-
ing navigational and weather warnings to other ships. Also used for
communicating with the U.S. Coast Guard during search and rescue
operations. Ship-to- ship communications only. Do not use for routine
communications as this is a safety channel.
Channels 7, 8, 9, 10, 11, 18, 19, 67, 79, 80, 88: Commercial
Vessels - Used for communication between vessels pertaining to the
purpose for which the vessel is used. Limited communications
between vessels and coast stations. Recreational boats are not permit-
ted to use these channels. Channels 8, 67, and 88 may not be used for
ship-to-coast communications. Channel 88 is not available on the
Great Lakes and St. Lawrence Seaway.
Channels 9, 68, 69, 71, 72, 78: non-Commercial (Boat Operations)
- Used by recreational boaters and others not engaged in commercial
transport. Provides a communication channel pertaining to the needs
of the vessel (maneuvers, berthing, provisioning, fueling, etc.). Used
as a second receiver between ship-to-ship and ship-to-limited coast
stations. Channel 72 may not be used for ship-to-coast communica-
tions and channel 9, the alternate calling channel, is shared with
commercial vessels.
Maritime
Radio Services
Operation