Dual Beam Transducers T28

The T28 is a precision echo sounder transducers designed for use in hydrographic or scientific applications where accurately defined beam patterns are needed. The T28 operating at 210 kHz is configured to achieve narrow and wide conical beams. A four core screened cable moulded into the rear of the array enables the beams to be switched between wide and narrow patterns using a bridge located 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 has recently been introduced. This provides the same performance as the narrow beam configuration but with lower side lobe levels.