4205: Tri-Frequency | Motion Tolerant Side Scan Sonar System

The next-generation 4205 is a versatile side scan sonar system that can be configured for almost any survey application from shallow to deepwater 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 example can be achieved with a selection of 230/540kHz combination. Then, on-demand the 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 either at faster survey speeds or in more adverse weather conditions while still obtaining 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 have 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.