The Type 8021 transceiver offers a hemispherical pattern of acoustic coverage whilst still ensuring rejection of vessel noise. The transceiver allows tracking of targets from below and to the side of the vessel and it is suitable for a wide variety of survey tasks such as towfish tracking and ROV positioning.

The Type 8023 transceiver is optimised to receive signals arriving within a ±50º cone. Any noise generated outside of this area, for example by thrusters, is attenuated further, therefore improving the signal to noise ratio and so the positioning accuracy.

In practise, this has been proven to allow the accurate positioning of the noisiest vessels. On quieter vessels, it enables even deeper depths to be achieved.

The all new hardware platform on which the Fusion USBL transceivers are based means that the units can be easily upgraded remotely via a serial interface.

They can also be used as Medium Frequency Long Baseline (LBL) transceivers when required. This removes the cost and inconvenience of installing and setting up a separate LBL transceiver when the need arises.

Technical Specifications

Features :-

• Incorporates Sonardyne's latest Wideband Technology
• Choice of transceivers depending on operating environment, water depth and vessel
• Operates as an LBL transceiver for all MF frequency operations
• Remote firmware upgrade via serial interface
• Improved noise immunity and analysis
• Non-Sonardyne frequencies supported