"Kongsberg EM 300 multibeam echosounder"@en . . "SDN:L22::TOOL0745" . "The Kongsberg EM300 is a 30 kHz multibeam echosounder designed for use in water depths between 10m and 5000m. The maximum swath width is greater than 5km, and the system allows up to 135 simultaneous beams with a range sampling interval of 17cm."@en . .