| Channel Number |
Ship Transmit MHz |
Ship Receive MHz |
Use |
| 01A |
156.050 |
156.050 |
Port Operations and Commercial, VTS. Available only in
New Orleans / Lower Mississippi area. |
| 05A |
156.250 |
156.250 |
Port Operations or VTS in the Houston, New Orleans and
Seattle areas. |
| 06 |
156.300 |
156.300 |
Intership Safety |
| 07A |
156.350 |
156.350 |
Commercial |
| 08 |
156.400 |
156.400 |
Commercial (Intership only) |
| 09 |
156.450 |
156.450 |
Boater Calling. Commercial and
Non-Commercial. Also used to hail many drawbridge operators, especially common
in the Sacramento Delta region. |
| 10 |
156.500 |
156.500 |
Commercial |
| 11 |
156.550 |
156.550 |
Commercial. |
| 12 |
156.600 |
156.600 |
Port Operations - VTS, Ship movements
in the approaches to San Francisco Bay. Regular broadcasts of the reported
movement of large vessels transiting the approaches to San Francisco Bay are
made at 15 minutes and 45 minutes after the hour. |
| 13 |
156.650 |
156.650 |
Intership Navigation Safety (Bridge-to-bridge). Ships
>20m length maintain a listening watch on this channel in US waters. Also
hailing channel for many draw bridge operators. |
| 14 |
156.700 |
156.700 |
Port Operations - VTS, Ship movements
inside San Francisco Bay |
| 15 |
-- |
156.750 |
Environmental (Receive only). Used by Class C
EPIRBs. |
| 16 |
156.800 |
156.800 |
International Distress, Safety and
Calling. Ships required to carry radio, USCG, and most coast stations
maintain a listening watch on this channel. If used for ship to ship calling,
switch to a "non-commercial" or "commercial working channel based upon your
type of vessel. |
| 17 |
156.850 |
156.850 |
State Control |
| 18A |
156.900 |
156.900 |
Commercial |
| 19A |
156.950 |
156.950 |
Commercial |
| 20 |
157.000 |
161.600 |
Port Operations (duplex) |
| 20A |
157.000 |
157.000 |
Port Operations |
| 21A |
157.050 |
157.050 |
U.S. Coast Guard only |
| 22A |
157.100 |
157.100 |
Coast Guard Liaison and Maritime Safety
Information Broadcasts. Broadcasts announced on channel 16. |
| 23A |
157.150 |
157.150 |
U.S. Coast Guard only |
| 24 |
157.200 |
161.800 |
Public Correspondence (Marine Operator) |
| 25 |
157.250 |
161.850 |
Public Correspondence (Marine Operator) |
| 26 |
157.300 |
161.900 |
Public Correspondence (Marine Operator) |
| 27 |
157.350 |
161.950 |
Public Correspondence (Marine Operator) |
| 28 |
157.400 |
162.000 |
Public Correspondence (Marine Operator) |
| 63A |
156.175 |
156.175 |
Port Operations and Commercial, VTS. Available only in
New Orleans / Lower Mississippi area. |
| 65A |
156.275 |
156.275 |
Port Operations |
| 66A |
156.325 |
156.325 |
Port Operations |
| 67 |
156.375 |
156.375 |
Commercial. Used for Bridge-to-bridge communications in
lower Mississippi River. Intership only. |
| 68 |
156.425 |
156.425 |
Non-Commercial |
| 69 |
156.475 |
156.475 |
Non-Commercial |
| 70 |
156.525 |
156.525 |
Digital Selective Calling (voice communications not
allowed) |
| 71 |
156.575 |
156.575 |
Non-Commercial |
| 72 |
156.625 |
156.625 |
Non-Commercial (Intership only) |
| 73 |
156.675 |
156.675 |
Port Operations |
| 74 |
156.725 |
156.725 |
Port Operations |
| 77 |
156.875 |
156.875 |
Port Operations (Intership only) |
| 78A |
156.925 |
156.925 |
Non-Commercial |
| 79A |
156.975 |
156.975 |
Commercial. Non-Commercial in Great Lakes only |
| 80A |
157.025 |
157.025 |
Commercial. Non-Commercial in Great Lakes only |
| 81A |
157.075 |
157.075 |
U.S. Government only - Environmental protection
operations. |
| 82A |
157.125 |
157.125 |
U.S. Government only |
| 83A |
157.175 |
157.175 |
U.S. Coast Guard only |
| 84 |
157.225 |
161.825 |
Public Correspondence (Marine Operator) |
| 85 |
157.275 |
161.875 |
Public Correspondence (Marine Operator) |
| 86 |
157.325 |
161.925 |
Public Correspondence (Marine Operator) |
| 87A |
157.375 |
157.375 |
Public Correspondence (Marine Operator) |
| 88A |
157.425 |
157.425 |
Commercial, Intership only. |
| AIS 1 |
161.975 |
161.975 |
Automatic
Identification System (AIS) |
| AIS 2 |
162.025 |
162.025 |
Automatic
Identification System (AIS) |
