Survey Equipment

EdgeTech 4205: Multi-Pulse/Motion Tolerant (MP/MT) Side Scan Sonar

Availability: Rental

Unique Group offers the EdgeTech 4205 which is a Multi-pulse/Motion Tolerant side-scan sonar system that can be configured for almost any survey application from shallow to deep water operations. It utilises EdgeTech’s Full Spectrum® CHIRP technology to provide crisp, high-resolution imagery at ranges up to 50% greater than non-CHIRP systems.


Motion tolerant mode.

Improved target positioning.

Crisp, high resolution CHIRP imagery.

Increased towfish power to support wider range of 3rd party sensors.

Single pulse high resolution mode.


Sonar operating frequency: Choice of either 120/410 kHz, 230/540 kHz, 540/850 kHz or 230/850 kHz.

Sonar operating range: 120 kHz: 600 m, 230 kHz: 350 m, 410 kHz: 200 m, 540 kHz: 150 m, 850 kHz: 90 m.

Sonar vertical beam width: 50°.

Sonar depression angle: Tilted down 25°.

Towfish depth rating (max): 2,000 m.


Cable and pipeline surveys.

Geological/geophysical and archeological surveys.

Mine countermeasures (MCM).

Geohazard and channel clearance surveys.

Search and recovery.

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