U.S. VHF Marine Radio Channels and Frequencies
(Important Channels Marked In Red)


Channel   Ship      Ship      Use
Number    Transmit  Receive


 01A      156.050   156.050   Port Operations and Commercial.  
                              VTS in selected areas.
 05A      156.250   156.250   Port Operations.  VTS in Seattle
 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.
 10       156.500   156.500   Commercial
 11       156.550   156.550   Commercial.  VTS in selected areas.
 12       156.600   156.600   Port Operations.  VTS in selected 
                              areas.
 13       156.650   156.650   Intership Navigation Safety 
                              (Bridge-to-bridge).  Ships >20m
                              length maintain a listening watch 
                              on this channel in US waters.
 14       156.700   156.700   Port Operations.  VTS in selected 
                              areas.
 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.
 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. Government 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. Government 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 in selected areas.
 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-Working Channel
 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
 80A      157.025   157.025   Commercial
 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. Government 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)
 87       157.375   161.975   Public Correspondence (Marine 
                              Operator)
 88       157.425   162.025   Public Correspondence in selected 
                              areas only.
 88A      157.425   157.425   Commercial, Intership only.

NOAA Weather Radio Frequencies

 WX1         --     162.550   
 WX2         --     162.400
 WX3         --     162.475
 WX4         --     162.425
 WX5         --     162.450
 WX6         --     162.500
 WX7         --     162.525

Frequencies are in MHz. Modulation is 16KF3E or 16KG3E.

Note that the letter "A" indicates simplex use of an international duplex channel, and that operations are different than international operations on that channel. Some VHF transceivers are equipped with an "International - U.S." switch for that purpose. "A" channels are generally only used in the United States, and use is normally not recognized or allowed outside the U.S.

Boaters should normally use channels listed as Non-Commercial for their working channel. Channel 16 is used for calling other stations or for distress alerting. Channel 13 should be used to contact a ship when there is danger of collision. All ships of length 20m or greater are required to guard VHF channel 13, in addition to VHF channel 16, when operating within U.S. territorial waters. Users may be fined by the FCC for improper use of these channels.

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