Portable Multibeam Echo Sounder ECT 400Si

The Portable Multibeam Echo Sounder ECT 400Si is a professional MBES solution designed for coastal, riverine and estuarine bathymetric surveys. It provides high-resolution seabed mapping and reliable detection of submerged objects in shallow and near-shore environments.

The system combines a wide-swath multibeam transducer with high-frequency acquisition electronics operating at a nominal 400 kHz. In addition, the agile frequency range allows optimal performance across different water depths and seabed conditions.

Thanks to full integration with RTK positioning, motion sensors and professional survey software, the ECT 400Si delivers accurate, repeatable and georeferenced data. As a result, survey time and post-processing effort are significantly reduced while maintaining hydrographic-grade accuracy.

Short description

Portable multibeam echo sounder for coastal and inland bathymetric surveys, featuring up to 170° swath coverage, 10 mm range resolution, up to 1024 beams and operational depths up to 250 m.

Why choose this product

• Wide swath coverage up to 170° for efficient area mapping.
• High resolution with distance resolution down to 10 mm.
• High beam density from 512 to 1024 beams for detailed models.
• Versatile deployment in rivers, estuaries, coastal and near-shore waters.
• RTK-level accuracy for professional hydrographic results.
• Portable configuration with fast installation and repeatable calibration.

Main applications

The ECT 400Si is intended for hydrographic authorities, survey companies and engineering teams requiring reliable bathymetric data in complex aquatic environments.

• Nautical charting and coastal seabed mapping.
• River and estuarine surveys for morphological monitoring.
• Detection of submerged objects such as wrecks, rocks and containers.
• Support for marine construction and coastal engineering projects.
• Search and identification of underwater structures and pipelines.

Compatibility

The system is designed for installation on small and medium survey vessels and supports full integration with GNSS antennas and motion reference units. Therefore, it fits both OEM and customized survey platforms.

• Mounting system: corrosion-resistant carbon-fiber pole.
• Survey speed: operational up to 8 knots.
• GNSS integration: primary, secondary and auxiliary antennas supported.
• Software: compatible with professional acquisition and processing suites.

Main features

• Nominal operating frequency of 400 kHz with 180–700 kHz agility.
• Depth range from 0.2 m up to 250 m.
• Angular resolution of 1° × 1° (nominal).
• Beam stabilization for motion compensation.
• High ping rate up to 50 kHz.
• FM and CW pulse modes with adjustable pulse length.
• Repeatable patch test support for system calibration.

Technical specifications

Package contents

• ECT 400Si multibeam echo sounder module.
• Carbon-fiber mounting pole with dedicated brackets.
• Integrated GNSS antenna system.
• Acquisition unit and connection cables.
• Survey computer with acquisition and processing software.
• Standard accessories for installation and calibration.