What should you always do before transmitting on a marine radio?

Before transmitting on a marine radio, it is essential to listen to check if the channel is clear. This practice is crucial for effective communication and safety at sea. By ensuring the channel is free of other transmissions, you minimize the risk of causing interference with ongoing conversations or emergency communications.

In marine environments, multiple vessels may be operating within the same frequency range, and many might be attempting to communicate simultaneously. If you transmit without confirming that the channel is clear, you could interrupt or obstruct vital communications, which may lead to misunderstandings or critical delays in response to emergencies.

Listening before transmitting also adheres to maritime communication protocols, which prioritize clarity and efficiency in radio use. This practice promotes disciplined communication among mariners and enhances overall safety on the water.