OTS Mount

Sonar Accesories

Modular Over-The-Side mounting system for various sonar and sensor types

Simple deployment for sonar equipment

Rapid, straightforward installation enables survey mobilisation without complex lifting systems or specialist handling.

Unlocks sonar use on diverse vessel types

Enables sonar deployment from vessels of opportunity, expanding survey capability beyond dedicated platforms.

Stable platform for accurate data acquisition

Rigid mounting reduces movement and vibration, supporting consistent sensor performance and reliable data quality.

Compatible with multiple sonar systems

Supports e.g., multibeams, side scan, bathymetric, and sub-bottom systems, enabling flexible use across survey types.

Accessible equipment during operations

Over-the-side configuration keeps sensors within reach, allowing quick inspection, adjustment, or recovery at sea.

Adaptable to different survey requirements

Modular pole and mounting options allow configuration to suit varying vessel layouts and deployment depths.

Rugged and simple Over-The-Side Mount for sonar equipment

The GeoAcoustics’ OTS Mount has been in use for over 20 years and is a tried and tested design for mounting sonar equipment on various vessel types.

It consists of four components which together form a reliable and stable mounting platform for a vast array of sonar equipment such as side scan and bathymetric, or sub-bottom profiler systems.

Although principally designed for operation with GeoAcoustics Ltd equipment, the OTS Mount can be modified for almost any third-party sensor using a simple custom adapter. The rugged design offers clear advantages over other systems and employs work drives to raise and lower the pole. A range of GNSS position/heading sensors can be fitted to the top of the OTS Mount pole set.

Boom Mounting Plate

The boom mounting plate provides a secure interface between the vessel and mounting system, fixed directly to the deck or framework. Positioned perpendicular to vessel travel, it ensures consistent sensor alignment and stability during data acquisition.

Stabiliser

The stabiliser connects the pole to the vessel structure, reducing movement and vibration during operation. This added rigidity supports more stable sensor positioning, which is particularly important for systems requiring precise measurements and consistent data quality.

Pole

The pole system comprises three modular sections that can be configured to suit vessel geometry and required deployment depth. This flexibility allows operators to achieve appropriate sensor submergence while maintaining safe and practical installation across different platforms.

System Components

The OTS Mount consists of a boom mounting plate, stabiliser, and modular pole system, forming a stable platform for sonar deployment. Together, these components provide structural support, positioning control, and flexibility across different vessel configurations and survey requirements.

GNSS

Optional GNSS mounting solutions allow integration of positioning and heading sensors directly onto the pole assembly. This enables accurate spatial referencing of acquired data and supports compatibility with a range of dual-antenna or integrated navigation systems.