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Sonardyne International Gyro USBL

Pre-calibrated Combined Acoustic & AHRS Transceiver

If you’re using a Ranger 2 system to track the position of a subsea target from a vessel of opportunity, over an extreme range, or from a pipelay vessel’s stinger, Gyro USBL delivers the highest precision available – now pre-calibrated direct from us.

  • Sonardyne International Gyro USBL
Sonardyne International
Blackbushe Business Park
GU46 6GD Yateley

Description

Designed for Ranger 2, Gyro USBL is an all-in-one instrument that combines our 6th generation (6G) High Precision Acoustic Positioning (HPT) acoustic transceiver and Lodestar Attitude and Heading Reference System (AHRS) in the same unit. This combination eliminates alignment errors seen in conventional USBL systems that are dependent upon a vessel’s own attitude and heading sensors.

Our latest generation design is supplied in-water pre-calibrated meaning that you can get to work as soon as it’s fitted, saving you valuable vessel time. Gyro USBL has always been available in two different array designs, optimised for deep water and long layback operations. Now additionally, you can choose between standard and ‘plus’ AHRS performance grades. Depending on the array type and AHRS grade, Gyro USBL can offer precision of better than 0.1% of slant range out of the box.

Gyro USBL has always been a popular choice for installations on vessels-of-opportunity using through-hull or over-the-side deployment arrangements, or even the tip of pipelay vessel stingers, where Ranger 2 is being used to track the vessel’s own ROV as it conducts touchdown monitoring – often at extreme lay backs.
But now Gyro USBL is significantly smaller and lighter than its predecessor, smaller vessels, including unmanned surface vessel (USVs), can now gain the best performance possible from their Ranger 2 system. The new design is also still be manufactured in corrosion-resistance aluminium-bronze, so ideally suited to use in any waters.

Specifications

  • Date of first release
    2020
  • Mounting
    Hull mounted & Portable
  • Retractable
    Y
  • Diameter [mm]
    225
  • Height [m]
    439
  • Frequency {kHz}
    19-34
  • Spread spectrum technology
    Y
  • Min. operation range {m}
    0
  • Max. operation range {m}
    7000
  • Focussed beam forming
    Y
  • Number of active elements
    8
  • Number of transponder channels
    600
  • Multi user functionality
    Y
  • LBL-functionality
    Y
  • Ray tracing
    Y
  • Real-time integration of SV-profile
    Y
  • Compatible hardware
    Seriel/ Ethernet
  • Compatible software
    Ranger 2/ Marksman
  • Real-time access procedure
    RS485, Baud Rate Switchable Ethernet 100mbps
  • Inertial interfacing
    Y
  • Dry weight {kg}
    64
  • Depth rating {m}
    100
  • Additional functions
    Optional tilted array adaptor
  • Inside deployment pole available
    Y
  • Outside deployment pole available
    Y
  • Recommended distance below keel {m}
    3

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