The D/11 spherical transducer provides highly efficient, omni-directional receive and transmit beam patterns.

With a resonant frequency of 11 kHz and a useful operating bandwidthfrom 6 kHz to 20 kHz the design is particularly suitable as a broadband noise source or for long range voice and data communications systems.

The transducer is extremely robust and able to withstand severe levels of underwater explosive shock.

Electrical connection to the transducer is by a twisted pair screened cable. The outer jacket of the cable Is in an extruded polyurethane material that enables the design engineer to build the transducer into customised equipment packages and readily obtain a waterproof seal by simple moulding techniques.

The D/11 is available with or without calibration. All calibrations are traceable to National Standards.

Octave Bandwidth Version
A broadband version of the D/11 using passive tuning networks to achieve a 3dB response over the frequency range 7 kHz to 16 kHz is available as an option.