Multiple installation options

The M3 Sonar HF is suitable for a wide range of vehicles from ROVs to USVs and ASVs.

When using a surface vessel, you can easily deploy the M3 Sonar HF on a pole mount. This

sonar can also be tripod mounted.

User-friendly software

The operating software was developed specifically for the M3 Sonar HF to manage

communications with the head and operate all beamforming and image processing. The

predefined imaging modes present distortion-free images at a high update rate. For an

alternative data visualization, the provided profiling modes generate a 3D point cloud.

FEATURES

• Up to 4000 m water depth

• Imaging and profiling capabilities

• 700 kHz to 1400 kHz operating frequency

• GeoTIFF output for imagemosaics

• Intuitive and easy-to-use software

• Significant time savings

• Integrated tilt and pan/tilt control

• Integrated Sound Velocity Sensor

APPLICATIONS

• Pipeline survey and inspection

• Fish behaviour monitoring

• Fish habitat mapping

• Infrastructure inspection

• Dredge monitoring

• Cable laying and trenching

Multimode multibeam sonar 922-2036000

Kongsberg Discovery’s M3 Sonar HF is a multibeam system with both

imaging and profiling capabilites. The M3 Sonar HF provides high-resolution

and easy-to-interpret images by combining the rapid refresh rate of a

conventional multibeam sonar with image quality comparable to a single beam sonar.

The complete package

This model includes an integrated Sound Velocity Sensor. The embedded processor inside

this sensor handles all signal processing, timing, and math, allowing the device to provide

continuous realtime sound velocity measurements.

Don’t miss a thing

Detection of small objects out to 100 meters combined with up to a 140° field of view

allows the operator to see the complete underwater picture in real-time. The M3 Sonar HF

provides high-resolution images at short range, reducing the time it takes to search for and

locate targets.

M3 SONAR HF

High-resolution bathymetry with a wide swath up to 140 degrees.

From the deepest sea to outer space

Kongsberg Discovery serves the ocean space from the deepest

sea to outer space. We develop technology to ensure sustainable

management of marine resources, monitor climate change and

critical infrastructure, and safeguard national security.

Our technology aims to sustainably manage marine resources,

monitor climate change, secure infrastructure, protect national

security, and address crucial global challenges. It is vital for

offshore operations, fisheries, marine research, maritime

activities, ocean energy production, infrastructure monitoring,

and naval operations.

Committed to protecting our planet

We recognize the global sustainability challenges and are

committed to developing solutions and products that resolve

operational issues while addressing environmental impacts on

the ocean ecosystem.

The business has over 1.100 employees located in Horten,

Trondheim, and Oslo in Norway, as well as operations in Alicante

in Spain, Aberdeen in the UK, Lynnwood (Seattle), Houston, and

New Orleans in the USA, Vancouver and Halifax in Canada, Kuala

Lumpur in Malaysia, and Singapore. Kongsberg Discovery is part

of KONGSBERG, a leading technology group based in Norway.

The M3 Sonar® HF is a high-frequency multibeam sonar with both imaging and

profiling modes. It’s image resolution is double that of the original M3 Sonar.

When your mission depends on identifying small features and

targets with absolute confidence, high-frequency sonar makes all

the difference. Operating at frequencies ranging from 700 kHz for

extended range up to 1400 kHz for ultra-high resolution close-up

work, the M3 Sonar HF delivers centimeter-level feature detection

that reveals details invisible to traditional bathymetric surveys.

High-frequency operation means sharper images, clearer

target definition, and the ability to distinguish features that lower

frequencies simply miss. Whether you’re conducting infrastructure

inspections, search and recovery operations, archaeological surveys,

or detailed seafloor mapping, the superior resolution of high

frequency sonar transforms how you see the underwater world.

APPLICATIONS

• Pipeline survey and inspection

• Gas-leak detection and seep monitoring

• Fish behaviour monitoring

• Fish habitat mapping

• Infrastructure inspection

• Dredge monitoring

• Cable laying and trenching

APPLICATIONS

• Marine Engineering

• Shallow-Water Bathymetric Surveying

• Site Inspection

• Environmental Monitoring

• Site Clearance

• Defense and Security

• Long-term Deployment

INSTALLATION OPTIONS

• Pole mount on a surface vessel

• Suitable for a wide range of vehicles from large workclass ROVs

to small observation-class ROVs

• Tripod mounted

M3 SONAR SOFTWARE

The M3 Sonar software was developed specifically for the

M3 Sonar to manage communications with the head and

operate all beamforming and image processing.

There are four predefined operating modes:

1. Imaging: Long-range navigation with high-speed update rate.

2. Enhanced Image Quality (eIQ): Greatest image quality

(0.95° angular resolution) from a short range with a slower update rate.

3. ROV Navigation: Selects eIQ or imaging based on range.

4. Profiling: Narrow 3° beam used to generate a 3D point cloud.