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The EM 2040 multibeam echosounder is the first system to bring all the advanced features of deep water multibeams to the near bottom sounding environment. Important deep water system features included with the EM 2040 are dual swath per ping (EM2040D) to allow a doubling of survey speed, FM chirp to achieve a much longer range capability, complete roll, pitch and yaw stabilization, and nearfield focusing both on transmit and receive. The EM 2040 is modular, allowing the user to tailor the beamwidths to the operational requirements, 0.4 by 0.7 and 0.7 by 0.7 degrees. The operating bandwidth available on the EM 2040 is unprecedented, from 200 to 400 kHz, which is a full octave, and this is achieved with the standard transducers. The operator can thus choose the best operating frequency for the application. The EM 2040 is well suited for surveys meeting the IHO-S44 special order. The standard depth rating of the EM 2040 subsea parts is 6000 meters. The system is ideal for operation on subsea vehicles such as ROVs or AUVs. The transmit transducer has an angular coverage of 200 degrees (±100 degrees) as standard, allowing a coverage of 5.5 times water depth when matched with a single receive transducer. Adding a second receive transducer allows surveying to the water surface or up to 10 times water depth on flat bottoms.