Boat echo sounder ME70

for hydrographic surveysfor bathymetry surveysmultibeam

The Simrad ME70 is a unique multibeam echo sounder. It combines the quantitative element from the split-beam echo sounders with the resolution and the extended sampling volume from the multibeam world. It is dedicated to collect data from the water column. In addition to the obvious fish and marine mammals, other targets such as methane gas seep and seafloor vegetation can be measured. The ME70 is designed for fishery research applications. It operates in the frequency range of 70 to 120 kHz using 800 transmitting and receiving channels. By adding bathymetry functionality to the standard system, the ME70 also provides high resolution seabed mapping. The ME70 Multibeam scientific echo sounder is designed for high operating flexibility. The system includes a wide fan of stabilized beams for fish behaviour studies, fish school characterization, and other purposes. A sector of these beams can be set up as split beams providing data for single target analysis such as target strength measurements and target tracking. The sector of calibrated narrow split beams with low sidelobe levels and short pulse lengths allow for accurate biomass estimation very close to the bottom. KEY FACTS Simrad ME70 operates in the 70 to 120 kHz frequency range. Simrad ME70 provides an adjustable acoustic fan containing 3 to 45 stabilized beams. All beams can be configured as split beams. The calibration software is included. The minimum beam opening is 2 degrees depending on the operational frequency and steering. The total swath width is 140 degrees. The athwartship centre angle of the fan can be adjusted from +45 to -45 degrees.