Edgetech 3400 OTS Pole Mount Subbottom Profiler


Edgetech 3400 OTS Pole Mount Subbottom Profiler

Edgetech 3400 OTS Pole Mount Subbotom profiling system is a wideband Frequency Modulated (FM) sub-bottom profiler utilizing EdgeTech’s proprietary Full Spectrum CHIRP technology. The system generates high-resolution images of the sub-bottom stratigraphy in oceans, lakes, and rivers and provides excellent penetration in various bottom types.

The lightweight 3400-OTS is ideal for shallow water surveys using small boats of opportunity. While the low-frequency model with dual transmitters and a large receive array is ideal for deep water and windfarm applications.

EdgeTech 3400 comes in a dual 2-16 kHz transducer configuration. The tow fish is configured with new PVDF receiver arrays segmented for standard sub-bottom profiling operations or a unique “pipe-liner” mode for optimal location and imaging of buried pipelines.

The system offers Real-Time Reflection Coefficient Measurements. This unique ability of the EdgeTech Sub-Bottom Profiler system allows users the ability to collect complex ‘analytic’ data using linear system architecture to measure sediment reflection and analyze sediment type determination. Additionally, the system has discrete transmit and receive channels allowing for continuous data collection resulting in a high ping rate particularly important for construction and pipeline surveys.

EdgeTech 3400 OTS sub-bottom profiling system comes as a complete package including EdgeTech’s DISCOVER sub-bottom acquisition & processing software. The 3400 OTS can also be interfaced to 3rd party software.


  • Enhanced Sub-bottom PVDF receivers
  • Sub-bottom mode or pipeliner mode
  • Dual 2-16 kHz transducers
  • Pole-mount or tow options
  • Digital receiver on towfish with Ethernet telemetry and power
  • Reduced diameter tow cable
  • Real-time pitch, roll, heave and depth sensors
  • Surface echo attenuation
  • Pulse library tailored for different survey applications
  • Data display in multi-frequency bands


  • Geological surveys
  • Environmental site investigations
  • Sediment classification
  • Buried pipeline & cable surveys
  • Archaeological surveys
  • Mining/dredging surveys
  • Map, measure & classify sediment layers within the sea floor