RTsys SEMA (ASW training target)
arrow_backTo the overviewSEMA is an autonomous, recoverable acoustic training target dedicated to Anti-Submarine Warfare (ASW) and torpedo-firing exercises. It's 2,130 mm long, 150 mm in diameter, weighs 33 kg, and is rated to 300 m depth, with onboard INS, GPS, DVL, and a pressure sensor for navigation. It can be launched from surface ships, submarines, helicopters, ASW aircraft, or a RHIB, with routes plotted via waypoints or configurable segments. SEMA offers a wide range of acoustic training modes — passive, active, and combined — including an acoustic echo-repeater (1–33 kHz), five active sonar frequency bands, two active homing-torpedo bands, narrowband and broadband channels, and an encrypted acoustic data recorder. It's easy to recover and can be reconfigured with a spare battery in about an hour. SEMA is already in service with multiple navies, including a multi-million-euro order for seven units from the Netherlands (shared with Belgium).
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Sepcotech A/S
Sepcotech is a Danish supplier of ROV, AUV, and USV solutions- helping maritime and defense operations work safer, faster, and with better data. We provide practical, reliable systems for underwater inspection, autonomous survey, and surface operations, built to perform in real-world conditions.
From quick inspections and search tasks to large-scale seabed surveys and long-duration missions, our solutions are designed to be easy to deploy, simple to operate, and tailored to each operation. Together, they give our customers better situational awareness and more efficient ways of working at s
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