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Fusion USBL Transceivers

Sonardyne’s family of Fusion Ultra-Short BaseLine (USBL) transceivers support the use of modern wideband signal technology, offering improved noise immunity, increased dynamic range and greater accuracy.

 

 

                                         

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

Feature Type 8021 Type 8023
Operating Frequency MF (18–36kHz) MF (18–36kHz)
Electrical            Maximum Power
                          Communication
36-72V DC - 25 W Continuous RS485 baud rate switchable 36-72V DC - 25 W Continuous RS485 baud rate switchable

Transceiver         
Performance        Operating Range
                               Acoustic Cover
                             Range Accuracy
                  Positioning Repeatability

Up to 7,000 Metres
±90º
Better than 0.2 metres
All transceivers tested to better than 0.1% of slant range 1 Drms

Up to 7,000 Metres
±50º Optimised for deep water
Better than 0.2 metres
All transceivers tested to better than 0.1% of slant range 1 Drms

Dimensions 456mm (17.9') x 300mm (11.8') 486mm (19.7') x 300mm (11.8')
Weight in Air 28kg 41kg
Weight in Water
13.5kg 20kg
Options Tilted Array Adaptor Tilted Array Adaptor

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