What frequency is typically used for communications with the coast guard?

VHF channel 16 is the internationally recognized distress, safety, and calling frequency for marine communications. It is the primary channel used for emergency communications, meaning that vessels at sea are trained to monitor this frequency for distress signals. The Coast Guard, along with other maritime authorities, consistently uses VHF channel 16 to initiate communication with vessels in need of assistance or to relay important safety information.

In addition to being used for emergencies, VHF channel 16 is also a means for vessels to establish communications with the Coast Guard and with other boats on the water, allowing for coordination in both emergency and non-emergency situations. This makes it the most critical frequency for marine operations involving the Coast Guard.

Other channels mentioned, such as HF channel 28 and UHF channel 12, do not serve the same function as VHF channel 16 for emergency and routine communications at sea. While VHF channel 22 may also be used for specific types of maritime communications and dialogues, it does not hold the same universal responsibility for distress calls as VHF channel 16 does.