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The HS-100 is a compact, long-range, multifunction hull-mounted sonar. Decades of dipping sonar experience and expertise have resulted in this slimmed down, dome profile which conforms to
the hydrodynamic, low-drag bulbous bow shape of a surface warship.

The transducer elements of the HS-100 are constructed from PMN (lead magnesium niobate). The mid-frequency (MF) multiplexed hydrophone channels are easily interfaced to an open architecture COTS acoustic processor.

The HS-100 uses 32 modern projectors to provide the high source levels necessary for long-range detection. The vertical“line” transmit array design produces large time-bandwidth wave trains that are not possible with traditional sector scan sonars. The lightweight, receive volumetric array comprises a vertical set of receive hydrophone staves with embedded ATM digital telemetry processing that eliminates the need for individual sensor cabling, transmit/receive switches and signal conditioning cabinets found in traditional active sonars.

The HS-100 is being developed by L-3 Communications Ocean Systems as a “green” sonar in that its transmissions do not harm aquatic life such as whales and dolphins.

The HS-200 combines HS-100, LFATS VDS-100 and latest transducer technologies to satisfy recent requirements for a low frequency (<2 kHz), hull-mounted sonar retrofit into a 1.2-meter dome.  HS-200 variants include the HS-200I for India and the HS-200J for Japan.