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The ATLAS HYDROSWEEP DS is a high resolution multibeam echosounder ideally suited for seabed mapping in deep water up to full ocean depth based on a sonar frequency between 14 kHz to 16 kHz. Beside bathymetric depth information from 10 m to more than 11,000 m, sidescan data and backscatter data for seabed classification are acquired. The ATLAS HYDROSWEEP DS does not only gather sea floor information, but also uses adaptive bottom tracking windows to identify sonar targets in the water column and can be operated as a parametric sub-bottom profiler without additional transducers and electronics. The ATLAS HYDROSWEEP DS is available in four variants of beam resolution ranging from 0.5 x 1 degree to 2 x 2 degrees for the 59 hardbeams. Acoustic footprints can be arranged in either "equal-angle" or "equal-distant" pattern over the 90 degree swath. The ATLAS HYDROSWEEP DS is no longer in production. The current model is the ATLAS HYDROSWEEP DS-3.