VHF channel 17 is designated for State Control communications within the U.S. marine radio system. This channel operates with a ship transmit frequency of 156.850 MHz.
In the United States, Very High Frequency (VHF) marine channels are specifically allocated for various purposes to ensure organized and safe communications on waterways. These channels are vital for facilitating essential exchanges between vessels, and between vessels and coast stations or government agencies.
Understanding Marine VHF Channels and Their Uses
Marine VHF radio channels are fundamental for safety, distress, navigation, and general operational communications for mariners. While channels like 16 are globally recognized for distress and calling, other channels, such as 17, serve more specialized functions that contribute to the overall efficiency and safety of marine operations.
Here is a breakdown of specific U.S. marine VHF channels and their designated uses:
| Channel Number | Ship Transmit MHz | Use |
|---|---|---|
| 16 | 156.800 | International Distress, Safety and Calling. Ships required to carry radio, the U.S. Coast Guard (USCG), and most coast stations maintain a continuous listening watch on this critical channel. |
| 17 | 156.850 | State Control |
| 18A | 156.900 | Commercial |
| 19A | 156.950 | Commercial |
This structured allocation of channels helps prevent interference, ensures clear communication, and allows critical messages to be efficiently delivered to their intended recipients.
