Sidescan Sonars

EA440 Sidescan Sonar

EA440 - Hull Mounted Sidescan Sonar

EA440 is a high performance hydrographic wide band single beam echo sounder. The echo sounder is developed for hydrographic use in shallow to medium depth waters. It also supports portable and hull mounted sidescan sonar survey.

Kongsberg Discovery

Horten, NO

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Description

EA440 features

High-performance hydrographic depths from 30 kHz to 500 kHz
Sidescan sonar application from 100 kHz to 500 kHz
Sub-bottom profiler application from 10 kHz to 30 kHz
Available with high power output from 30 kHz to 50 kHz
Extensive range of transducer interfaces, both Kongsberg transducers and third-party transducers
Splash proof all-in-one hardware setup available
CW and FM pulse forms
True raw data logging
World class bottom detection
Map display to track your coverage

EA440 Sidescan Sonar surveys

Specially designed transducers for hull or over-the-side mounting are available from Kongsberg Maritime for Sidescan operation. The operating frequency is 120, 200 or 500 kHz. With a beam width of 50 degrees vertically and only 0.5 or 2 degrees horizontally, the scanning sector is narrow enough to resolve relatively small objects on the sea floor but wide enough to allow higher survey speeds than with conventional side-looking echo sounders. Bottom elevations and objects are immediately recognised in the EA440 echogram.

The EA440 Sidescan Sonar transducers occupy 2 of 4 WBT channels. The EA440 system allows for combined application with depths and/or sub-bottom profiling. Sonar Mosaic is a Kongsberg Maritime software tool for real-time or post-processed creation of a georeferenced mosaic of the Sidescan Sonar data. Sonar mosaic will read EA440 Sidescan Sonar raw or XTF data and create a georeferenced mosaic of the files. The mosaic can then be saved as GeoTIFF files for further use and visualisation of the sidescan data.

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Specifications

Towfish: Deployment methods

Hull or pole mounted transducers

Transceiver and recorder: Model name

EA440 wideband transceiver

Min. AC power [V]

110

Max. AC power [V]

220

Min. DC power [V]

12

Max. DC power [V]

15