The Marine Band is to be used only by ships and coast stations and the coast guard. It is NOT to be used as a CB Radio, FRS or GMRS. Monitoring in the US is perfectly legal but under no circumstances should you transmit unless the above conditions are met. Power is generally 5W for handhelds and 25W for ship radios. MROP (Marine Radio Operators Permit) is required.

Being on the coast I do monitor Marine Band Channel 16 both at home in the shack at times as well as scanning while mobile. The rest are fun to listen to while on a cruise for example or visiting a harbor both of which I have done.

For the San Francisco Bay Area Ham Radio Repeaters, please visit the Repeater DataBase of this site.

New Channel Old Channel TX MHz RX MHz Description
100101A156.05156.05Port Operations and Commercial, VTS. Available only in New Orleans/Lower Mississippi area.
100505A156.25156.25Port Operations or VTS in Houston, New Orleans and Seattle.
66156.3156.3Intership Safety
88156.4156.4Commercial (Intership only)
99156.45156.45Boater Calling. Commercial and Non-Commercial.
1111156.55156.55Commercial. VTS in selected areas.
1212156.6156.6Port Operations. VTS in selected areas.
1313156.65156.65Intership Navigation Safety (Bridge-to-bridge). Ships >20m length maintain a listening watch on this channel in US waters.
1414156.7156.7Port Operations. VTS in selected areas.
1515--156.75Environmental (Receive only). Used by Class C EPIRBs.
1616156.8156.8International Distress, Safety and Calling. Ships required to carry radio, USCG, and most coast stations maintain a listening watch on this channel.
1717156.85156.85State Control
2020157161.6Port Operations (duplex)
102020A157157Port Operations
102121A157.05157.05U.S. Coast Guard only.
102222A157.1157.1Coast Guard Liaison and Maritime Safety Information Broadcasts. Broadcasts announced on channel 16.
102323A157.15157.15U.S. Coast Guard only
2424157.2161.8Public Correspondence (Marine Operator)
2525157.25161.85Public Correspondence (Marine Operator)
2626157.3161.9Public Correspondence (Marine Operator)
2727157.35161.95Public Correspondence (Marine Operator)
2828157.4162Public Correspondence (Marine Operator)
106363A156.175156.175Port Operations and Commercial, VTS. Available only in New Orleans/Lower Mississippi area.
106565A156.275156.275Port Operations
106666A156.325156.325Port Operations
6767156.375156.375Commercial. Used for Bridge-to-bridge communications in lower Mississippi River. Intership only.
7070156.525156.525Digital Selective Calling DSC (voice communications not allowed)
7272156.625156.625Non-Commercial (Intership only)
7373156.675156.675Port Operations
7474156.725156.725Port Operations
7777156.875156.875Port Operations (Intership only)
107979A156.975156.975Commercial. Non-Commercial in Great Lakes only
108080A157.025157.025Commercial. Non-Commercial in Great Lakes only
108181A157.075157.075U.S. Government only - Environmental protection operations.
108282A157.125157.125U.S. Government only
108383A157.175157.175U.S. Coast Guard only
8484157.225161.825Public Correspondence (Marine Operator)
8585157.275161.875Public Correspondence (Marine Operator)
8686157.325161.925Public Correspondence (Marine Operator)
8787157.375157.375Public Correspondence (Marine Operator)
8888157.425157.425Commercial, Intership only
AIS 1AIS 1161.975161.975Automatic Identification System AIS (digital)
AIS 2AIS 2162.025162.025Automatic Identification System AIS (digital)

If you find something incorrect, have an update, or if there is something you would like to see added to the site, drop me a line here. I like to keep things as up-to-date and as accurate as possible. Thank you! - Lucas / W6AER

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