Core Insights - The Korea Electronics and Telecommunications Research Institute has successfully validated the world's first marine Internet of Things (IoT) communication network in a real ocean environment, enabling real-time data collection for marine safety management and ecological monitoring [1][2]. Group 1: System Capabilities - The marine IoT system can create platforms for collecting marine meteorological, ecological, and environmental data, forming a marine big data system that can be shared with public institutions [1]. - It provides technical support for navigation equipment, fishing gear monitoring, aquaculture, and management of uninhabited islands, and plays a significant role in public safety, such as tracking small vessels, locating life jackets, and monitoring floating debris at sea [1]. Group 2: Technical Specifications - The system utilizes a dedicated 450 MHz public frequency band designated by the Korean Ministry of Oceans and Fisheries in 2023, integrating base stations, terminals, core networks, and application services into a standalone communication network [1]. - During testing, stable communication was achieved over distances of 27 kilometers between the Odododo lighthouse and Gyeongju port, and 35 kilometers between the Marlo lighthouse and Changxiang port [2]. Group 3: Future Plans - The team plans to establish pilot marine IoT networks in the East Sea, West Sea, and South Sea starting in 2026, with a goal of achieving nationwide coverage by 2030 [2].