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The Falmouth Scientific HMS-624 Side Scan Sonar System utilizes advanced technology to provide superior imaging capabilities for deep and shallow water applications. The Tow Fish electronics incorporate FSI’s CHIRPceiverTM 24-bit CHIRP signal processing along with dual simultaneous 100/400 KHz operation which results in very high resolution side scan data at towing depths up to 1,000 meters. The Topside Power/Data Multiplexer Interface is packaged in a IP66 splashproof enclosure and provides a 4Mb/s DSL connection for the Tow Fish, and a standard Ethernet connection for the data processor interface. The HMS-624 uses a flexible control interface connected via Ethernet that allows the user to set operating parameters such as CHIRP/CW modes, pulse length, range, and gain. The system is compatible with third-party Software packages such as OIC GeoDAS, Triton ISIS, and others.



Dual Simultaneous 100/400 KHz Frequency

Industry Standard Ethernet Interface for Data, Control, and Processing

DSL Over Coax Tow Vehicle Data Interface

Compatible with Standard Survey software

CHIRP and CW modes

Lightweight Aluminum Tow Fish

Heading, Pitch, & Roll Sensors (Depth Optional)

Two Serial Input Ports to Enable integration of a Magnetometer or other external sensors


Download Brochure: FSI_HMS624_SidescanSonar_

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