Features: Experience unparalleled signal reception with this antenna, designed with advanced technology to maintain stable positioning even in complex marine environments. This marine antenna features a waterproof and shock resistant design, RS232 output interface for efficient data transmission, and wide frequency coverage suitable for various devices. Suitable for boating enthusiasts, professional mariners, ocean researcher, and ship manufacturers seeking reliable navigation support and enhanced maritimes experiences. Perfect for real time navigation during sea voyages, optimizing fishing operations, vessel monitoring, and providing precise data for scientific research and meteorological studies. Seamlessly integrate this NMEA0183 antenna into your marine navigation system, ensuring accurate tracking and improved operational efficiency on yachts, sailboats, and fishing vessels. Specifications: Material: plastic Package Includes: 1 set Antenna note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.