What is Channel 13 primarily used for?

Channel 13 is primarily used for ship-to-ship and ship-to-shore communication. This channel is designated as a bridge-to-bridge communication frequency, which facilitates important communication between vessels in close proximity. It is particularly essential for navigational safety, allowing vessels to communicate their intentions or any urgent messages to one another while navigating in busy waters or during potential emergencies.

This channel helps enhance situational awareness among vessels, which is crucial to prevent collisions and ensure smooth navigation. Its significance is further highlighted in busy ports and congested waterways where effective communication can greatly reduce risks.