38
English
Channel name/description Used for:
PORT OPERATIONS/VTS
(vessel traffic system)
messages about the movement and safety of ships in or
near ports, locks or waterways. In certain major ports,
some channels may be restricted to specific types of
port operations messages.
NAVIGATIONAL/BRIDGE
TO BRIDGE
messages about ship navigation, for example, passing
or meeting other ships, maneuvering through locks,
or navigating around drawbridges. Messages must be
short!
STATE CONTROL
messages about government regulation and control,
boating activities, or assistance to ships; also used to
talk to ships and coast stations operated by state or local
governments
DIGITAL SELECTIVE
CALLING
DSC signals only (no voice communications allowed at
any time)
us Marine Channels and Frequencies
Ch No.
RX Freq
TX Freq
Status
Name on display
1A*
156.0500
156.0500
Simplex
Vessel traffic system/
Commercial
5A
156.2500
156.2500
Simplex
Vessel traffic system/
Commercial
6
156.3000
156.3000
Simplex
Inter-ship safety
7A
156.3500
156.3500
Simplex
Commercial
8
156.4000
156.4000
Simplex
Commercial
9
156.4500
156.4500
Simplex
Non commercial
10
156.5000
156.5000
Simplex
Commercial
11
156.5500
156.5500
Simplex
Vessel traffic system
12
156.6000
156.6000
Simplex
Vessel traffic system
13
156.6500
156.6500
Simplex, 1W
Bridge to bridge
14
156.7000
156.7000
Simplex
Vessel traffic system
15
156.7500
Inhibit
Receive Only
Environmental
16
156.8000
156.8000
Simplex
Distress, Safety, Calling
17
156.8500
156.8500
Simplex, 1W
Govt maritime control
18A
156.9000
156.9000
Simplex
Commercial
19A
156.9500
156.9500
Simplex
Commercial
20
161.6000
157.0000
Duplex
Port operation
20A
157.0000
157.0000
Simplex
Port operation
21A
157.0500
157.0500
Simplex
Coast guard only
22A
157.1000
157.1000
Simplex
Coast guard
23A
157.1500
157.1500
Simplex
Coast guard only
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