Essential Maritime Communication and Safety Procedures

Maritime Duties and Safety Protocols

I plan each route very carefully. My job is to maintain the engines, and everyone has to keep watch. We avoid collision by navigating safely. All crew should wear their personal protective equipment at the workplace. As an OOW (Officer of the Watch), I have to write the logbook entries.

Standard Radio Communication Procedures

• When a message is not properly heard, the words "Say again" are used.
• "PAN-PAN" is used for an emergency on board when there is no immediate danger to life or to the vessel.
• When a mistake is made in a message, the word "Correction" is spoken, followed by the word "Over" and then the corrected part of the message.
• "Sécurité" is used for important safety information.
• You call a distress message on your radio because your vessel is in grave and immediate danger.
• The word "Out" is spoken when you finish your transmission and no response is expected.

Weather Conditions and Sea State Analysis

Today, the sea state is very bad; therefore, we won't go sailing. The weather report announces winds which will blow at speeds of up to 45 knots with high waves of level 9. The seas will be phenomenal, with a gale warning along with sea spray which may affect visibility. The poor weather will pass very quickly.

Vessel Motions and Dynamics

• Heaving
• Yawing
• Swaying
• Surging
• Pitching
• Rolling

Standard Marine Communication Phrases (SMCP)

• Warning: Unknown objects in your area.
• Instruction: Do not leave the harbour.
• Advice: Navigate with caution.
• Intention: I will increase speed.
• Answer: No, I do not require assistance.
• Information: My ETA is 10:15.

Evolution of Marine Communication Technology

The changes in communications in the marine field are closely linked to technology. Many years ago, even centuries, when people needed to navigate, they used primitive but creative ways to sail correctly. For example, sailors used birds (ravens) to determine if they were on the right path; they also used the wind, currents, waves, the sun, and the moon, among other things. Currently, sailors use satellites, radiocommunications, and many types of electrical and electronic devices, such as Inmarsat, GPS, ECDIS, AIS, and many others.