ST2400

The ST2400 VDS is a versatile sonar system operating in the frequency range of 19 to 31 kHz. It primarily functions as an active sonar but also includes a passive mode for listening within the same frequency band. The sonar's towed body, which can be immersed up to 200 meters, houses the wet part of the system. This design ensures stability at all operational speeds, including stationary dipping mode. The system's narrow beams and low side lobe levels on both transmitting and receiving sides effectively reduce reverberation problems and multipath detections, enhancing overall performance.

The ST2400 sonar offers multiple active transmitting modes, including horizontal omni (360°) and horizontal sector. The horizontal sector mode allows the operator to focus energy in a specific direction and select the sector width, providing flexibility in various operational scenarios. The system is equipped with numerous functions to optimize performance under challenging environmental conditions, such as controlling the transmitting source level, pulse type, pulse length, center frequency, and bandwidth. Additionally, the sonar is prepared for seamless integration with the Combat Management System (CMS) via the Local Area Network (LAN).

The Launch and Recovery System (LARS) for the ST2400 sonar is designed for quick and easy deployment and retrieval of the towed body. Available in two versions, the LARS can be constructed from either steel for greater strength and higher vessel speed tolerance or aluminum for lightweight and compact installation. Both versions have small footprints on deck, making them suitable for various vessel types. The towed body itself is equipped with several sensors, including a Conductivity-Temperature-Depth (CTD) probe, compass, and Motion Reference Unit (MRU). These sensors provide valuable data, such as sound velocity profiles, to enhance the sonar's performance. In case of loss, an acoustic pinger is activated to simplify recovery.