1Enhanced Connectivity: Connect Ais transponders and Vhf radios to a single Vhf antenna for improved communication and navigation in the 136?174MHz frequency range. 2Durable Construction: The splitter features an aluminum alloy casing that is fully sealed and waterproof. The galvanized copper columns provide rust resistance. 3Reliable Performance: With its excellent components and construction, the splitter offers stable performance and effective division of signals. 4Marine Essentials: Antenna splitter divider is specifically designed for marine systems, making it a versatile and essential tool for ships and boats. 5Easy Installation: The Vhf Ais antenna splitter is designed for easy installation on marine vessels, allowing for quick and hassle free setup.