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U.S. Coast Guard
Channel: 22
Vessels: Any
Use: Working channel for
exchange of communica-
tions with stations of the
U.S. Coast Guard.
Between: Ship to U.S. Coast Guard
ship, coast to aircraft
stations
Comments: U.S. Coast Guard does not
regularly monitor this
channel. Establish contact
on channel 16 and shift to
channel 22 as directed.
Navigation
Channels: 13
Vessels: Any
Use: Safety Communications
pertaining to the maneu-
vering of vessels or the
directing of vessel
movements
Ship-to ship and secondarily ship-to-coast
This is commonly called the Bridge-to-
Bridge channel. Large vessels and
towboats depend on this channel for their
safe navigation. Railway or highway
bridges which open for ship navigation
often operate on this channel.
Bridge-to-Bridge stations must reduce
power to one watt for routine operations.