This series of coaxial watertight connectors is specially designed for underwater RF signal transmission. It supports stable high-frequency signal transmission with low insertion loss and high return loss performance.Adopting 50Ω or 75Ω impedance matching design to guarantee signal integrity, it is suitable for RF applications such as radar, sonar and video transmission, and can operate reliably for long periods under deep-sea high-pressure environments.Widely applied in high-frequency signal transmission fields including underwater communication systems, acoustic detection equipment and subsea CCTV monitoring.