What channel is primarily designated for hailing?

The primary channel designated for hailing is Channel 16. This channel operates on a maritime VHF band and is internationally recognized for distress, safety, and calling. It serves as the main communication channel for vessels to establish contact with one another, as well as with shore stations, in emergency situations or for general communication.

Vessels are required to monitor Channel 16 when at sea to enable immediate communication in case of an emergency. Upon establishing contact on Channel 16, vessels would typically switch to a working channel for further communication, which helps to keep Channel 16 clear for other urgent messages.

Other channels listed serve different purposes. For instance, Channel 12 and Channel 68 are typically used for specific operational communications, while Channel 13 is often reserved for bridge-to-bridge communications in navigational situations. Understanding the specific uses of these channels is crucial for effective maritime communication.