Global Maritime Distress and Safety System (GMDSS)

Distress Alerts: The GMDSS enables vessels to send distress signals in emergencies to alert nearby ships or shore stations. Safety Broadcasts: Transmits navigational warnings, weather information, and distress alerts to improve safety at sea. Automatic Identification System (AIS): Used to track the position of nearby vessels in real-time for collision avoidance and monitoring.

Satellite Communication

Global Coverage: Satellite phones and broadband systems, provide global communication for remote areas where other radio systems may not work. Email and Internet Access: Allows vessels to stay connected for operational communications, reporting, and even personal communication. Tracking and Monitoring: Allows fleet managers and authorities to track vessel locations and conditions in real-time.

 Marine Telephony (Voice Communication)

Voice Over IP (VoIP): Provides cost-effective and high-quality voice communication over the internet, often used on large vessels or fleets. Telephone Integration: Integration of onboard phone systems with satellite networks for direct voice communication to shore.

VHF (Very High Frequency) Radio

Short-range Communication: Typically used for communication with nearby vessels and shore stations. Channel 16 for Emergency: A dedicated emergency channel that ensures communication during distress situations. Digital Selective Calling (DSC): Allows vessels to send automated distress alerts and location information to other ships or stations.

 MF/HF (Medium Frequency/High Frequency) Radio

Longer-range Communication: MF/HF radios are used for communication over long distances, essential for vessels that operate beyond VHF range. Single Sideband (SSB) Communication: Enables clearer long-distance voice and data transmission, especially useful for remote areas. Weather Reports and Navigation Warnings: Provides broadcasts of weather information, routing guidance, and other maritime information for safety.

Voice/Data Recording and Replay Systems—Digital Communications (Email, Text Messaging)—

Integrated Communication Systems—Automatic Position Reporting Systems (APRS)—Radio Direction Finding (RDF)—Marine Telex and Facsimile (Telex Fax)—Multicast and Broadcast Communication—Cybersecurity Features— Automatic Identification System (AIS)