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Nexus 2

Product Name:Nexus 2
Product Description:Easytrak Nexus 2 is the next generation of advanced USBL positioning and tracking system that incorporates Sigma 2 Spread Spectrum technology to provide a secure acoustic link. By incorporating AAE Sigma 2 technology the wide bandwidth transmissions reduce its susceptibility to interference and enables precise, reliable positioning over an extended operational range. Easytrak Nexus 2 determines the position of dynamic subsea targets through the transmission and reception of acoustic signals between the submerged transceiver and the target beacon. Positions can be geographically referenced with chart overlays and internally logged for a complete solution.
Date of first release:2016
Mounting and deployment 
Mounting:Hull mounted & Portable
Physical properties of transducer head 
Diameter [mm]:150
Height [m]:0.495
Min. external power [Voltage]:110
Max. external power [Voltage]:240
Max power consumption [W]:250
Used Sonar Methods 
Type of system:USBL
System Parameters 
Frequency {kHz}:18-34
Spread spectrum technology:Y
Min. operation range {m}:1
Max. operation range {m}:2500
Operation beam angle {deg}:160
Angle accuracy (degr) @ 20 dB:
Focussed beam forming:N
Horizontal accuracy (in % of the water depth):0.2
Vertical accuracy (in % of the water depth):0.2
Focussed beam angle {degr}:
Number of active elements:6
Number of transponder channels:16
Multi user functionality:N
Speed of sound 
Ray tracing:N
Real-time integration of SV-profile:Y
Motion compensation 
Motion sensors compatible to the system::Internal AHRS + external options Internal depth sensor
Required pitch uncertainty [deg}:
Required roll uncertainty [deg]:
Required heave uncertainty [m]:
Compatible hardware:Serial and Ethernet
Compatible software:Nexus 2
Real-time access procedure:Embedded Windows 7
Inertial interfacing:N
Dimensions {mm}:74 x 410
Dry weight {kg}:3
Depth rating {m}:2000
Additional functions:
Inside deployment pole available:Y
Diam gate valve {mm}:150
Outside deployment pole available:Y
Recommended distance below keel {m}:1
Maintenance criteria 
Mean time before failure [hr}:
Mean time to repair [hr]:
More information 
Distinguishable features :Bi-directional Sigma 2 Spread sprectrum. Integrated 'Easycal 2', USBL calibration tool. Graphical overlay.

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Supplier Information
  • Applied Acoustics

  • Gapton Hall Road
  • NR31 ONB Great Yarmouth
  • United Kingdom of Great Britain & Northern Ireland



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