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Command & Sonar Systems

Underwater Warfare

ASW Hull Mounted Sonar

Ultra’s ASW Hull Mounted Sonar (HMS) is a combined active/passive array with dual-frequency transmit flexibility. This HMS can be operated in omni-directional mode or in sector search and employs a range of FM and CW waveforms to optimise the probability of detection and avoid clutter. It has a heavy weather mode to increase ensonification during high sea states and a close contact mode for detection and tracking of close targets. Ultra’s HMS also incorporates mine avoidance capabilities. It can transmit in a wide bandwidth to avoid mutual interference from other ships, enabling increased freedom of manoeuvre during multi-ship operations.

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