Dual Beam Transducer T38

The Type T38 is a precision echo sounder transducer designed for use in hydrographic or scientific applications where an accurately defined, narrow beam pattern is required. Operating at 120 kHz the multi-element array is configured to achieve two, highly directional, conical beam patterns with low side lobe levels. A four core cable moulded into the rear of the transducer enables the beams to be switched between wide and narrow patterns using a remote selection box. Originally designed for hull mounting, the tough nylon body is pressure rated down to 250 metres making it suitable for towed body installation. A single beam version of this transducer has recently been introduced to provide the same performance as the narrow beam configuration but with a lower side-lobe level.