Photo Credit: National Safe Boating Council
It’s important that boaters use the correct channel when communicating on a VHF (very high frequency) marine band radio.
It’s important that boers use the correct channel when communicating on a VHF (very high frequency) marine band radio.
Boater Calling Channel (VHF Channel 9)
The Federal Communications Commission established VHF-FM channel 9 as a supplementary calling channel for noncommercial vessels (recreational boaters) at the request of the U.S. Coast Guard. A ship or shore unit wishing to call a boater would do so on channel 9, and anyone (boaters included) wishing to call a commercial ship or shore activity would continue to do so on channel 16. Recreational boaters would continue to call the Coast Guard and any commercial facility on channel 16.
The purpose of the FCC regulation was to relieve congestion on VHF channel 16, the distress, safety and calling frequency. FCC regulations require boaters having VHF radios to maintain a watch on either VHF channel 9 or channel 16, whenever the radio is turned on and not communicating with another station.
Since the Coast Guard generally does not have the capability of announcing an urgent marine information broadcast or weather warning on channel 9, use of channel 9 is optional. The Coast Guard recommends boaters normally keep tuned to and use channel 16 in those waters unless otherwise notified by the Coast Guard.
Here are the VHF channels most frequently used by recreational boaters. Please note, channel numbers previously designated by a two-digital channel number ending with the letter A are now recognized internationally by a four-digit channel number beginning with a “10.” For example, Channel 22A is now 1022. For a complete list of U.S. VHF marine radio channels, please visit The Navigation Center for Excellence.
New Channel Number | Old Channel Number | Ship Transmit MHz |
Ship Receive MHz |
Use |
09 | 09 | 156.450 | 156.450 | Boater Calling. Commercial and Non-Commercial. VDSMS |
13 | 13 | 156.650 | 156.650 | Intership Navigation Safety (Bridge-to-bridge). Ships >20m length maintain a listening watch on this channel in US waters. |
16 | 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. |
1022 | 22A | 157.100 | 157.100 | Coast Guard Liaison and Maritime Safety Information Broadcasts. Broadcasts announced on channel 16. |
68 | 68 | 156.425 | 156.375 | Non-Commercial. VDSMS |
69 | 69 | 156.475 | 156.475 | Non-Commercial. VDSMS |
70 | 70 | 156.525 | 156.525 | Digital Selective Calling (voice communications not allowed) |
71 | 71 | 156.575 | 156.575 | Non-Commercial. VDSMS |
72 | 72 | 156.625 | 156.625 | Non-Commercial (Intership only). VDSMS |