hydrographic survey echo sounder / multibeam
EM 712 Kongsberg Maritime



  • Application domain:

    for hydrographic surveys

  • Technology:



The EM 712 multibeam echo sounder is Kongsberg Maritime's second generation high to very high resolution seabed mapping system capable of meeting all relevant survey standards.
Delivering highly accurate results through superior range and resolution, the EM 712 is the most advanced multibeam echo sounder for shallow-medium waters. It supersedes the EM 710, which is well established as the de facto standard for all shallow to medium depth surveys.

EM 712 system configuration can be tailored to the user's requirement, allowing for choice of beam widths as well as transmission modes. The minimum survey depth is from less than 3 meters below the transducers, and the maximum depth is an unmatched 3600 meters. Across track coverage (swath width) is now more than 3500 meters. This is almost double the range performance of the EM 710.

Further key advances made for the EM 712 include low-noise receiver transducers and electronics in addition to a smaller, lighter form factor, enabling for more flexible installation on a wider variety of vessels.

EM 712 multibeam echo sounder versions
There are three basic versions of the EM 712 multibeam echo sounder each with different range performances as follows:

EM 712 - Full performance version
EM 712 S - CW pulse forms only
EM 712 RD - Short CW pulse only