4205 TRI-FREQUENCY / MOTION TOLERANT SIDE SCAN SONAR SYSTEM
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Catalog excerpts

4205 TRI-FREQUENCY / MOTION TOLERANT SIDE SCAN SONAR SYSTEM - 1

TRI-FREQUENCY / MOTION TOLERANT SIDE SCAN SONAR SYSTEM FEATURES • Tri frequency side scan sonar • Motion tolerant mode • Improved target positioning • Crisp, high resolution CHIRP images • Increased towfish power to support a wider range of additional 3rd party sensors • Single pulse high resolution mode The next generation 4205 is a versatile side scan sonar system that can be configured for almost any survey application from shallow to deep water operations. The 4205 utilizes EdgeTech’s Full Spectrum® CHIRP technology to provide crisp, high resolution imagery at ranges up to 50% greater than non-CHIRP systems; thus allowing customers to cover larger areas and save money spent on costly surveys. In addition to the high-resolution imagery that EdgeTech is known for, the 4205 comes with a number of new features which makes the system even more flexible and powerful in offshore operations. The 4205 is available in either a tri-frequency side scan sonar configuration or motion tolerant and multi-pulse configuration. The tri-frequency version allows surveyors the option to operate any two frequencies simultaneously from the tri-frequency system. Long range operations for • Cable & pipeline surveys example can be achieved with a selection of 230/540kHz combination. Then, on-demand the • Geological/geophysical surveys system can be changed to a 540/850kHz system for an even higher resolution survey. The 4205 motion tolerant configuration with multi-pulse provides surveyors the ability to operate • Geohazard surveys either at faster survey speeds or in more adverse weather conditions while still obtaining • Channel clearance • Search and recovery • Archeological surveys high quality underwater imagery. Additionally, this configuration can be operated in a single pulse high-resolution mode for those operations that require an even more finite view of the seafloor. In both the tri-frequency and motion tolerant/ multi-pulse configurations, towfish and target positioning has been improved with the integration of a more accurate heading sensor that can be coupled with an optional USBL beacon. Additionally, all systems now come with Increased towfish power to support a wider range of additional 3rd party sensors. All EdgeTech 4205 systems are comprised of a topside system and a reliable stainless steel towfish. Topside processors are rack mountable and come with easy-to-use GUI software that can be installed on the optional industrial workstation, laptop, or customer provided PC. Motion Tolerant Mode Sonar example: During turbulant condtions, the data on the left of side of this image was recorded using the EdgeTech 4205 Motion Tolerant mode. The right side of the image, depicting motion induced striping was captured without the Motion Tolerant mode for comparison. For more information please visit EdgeTech.com info@EdgeTec

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4205 TRI-FREQUENCY / MOTION TOLERANT SIDE SCAN SONAR SYSTEM - 2

TRI-FREQUENCY / MOTION TOLERANT SIDE SCAN SONAR SYSTEM KEY SPECIFICATIONS Sonar Specifications Frequency Operating Range (meters/side) 4205 multi-puLse/motion tolerant (mp/mt) and High DEFINITION Mode Choice of either 120/410 kHz, 230/540 kHz,or 230/850 kHz Resolution Along Track Resolution Across Track Vertical Beam Width Depression Angle Horizontal Beam Width Stainless Steel Depth Rating (Max) Standard Sensors Optional Sensor Port Options Topside Processor Hardware Display & Interface 2,000m Heading, pitch & roll (1) Serial – RS 232C, Bi-directional & 28 VDC +/- 4% Pressure Sensor,...

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