Marine Magnetics
Applied Acoustics Easytrak Nexus 2
The Applied Acoustics Easytrak Nexus 2, Model EZT-2691, is an advanced, military-grade Ultra-Short Baseline positioning and tracking system designed for reliable operation in demanding subsea environments.
Using bidirectional Sigma 2 spread-spectrum acoustic technology, Nexus 2 provides a secure acoustic link with low susceptibility to interference. It can determine and display the positions of up to 16 dynamic subsea targets simultaneously through acoustic communication between the vessel-mounted transceiver and compatible target beacons.
Target positions can be geographically referenced, displayed over chart backgrounds and internally logged, providing a complete solution for defence, inspection, diving and subsea vehicle operations.
Features & Benefits
- Bidirectional Sigma 2 spread-spectrum acoustics
- Improved positioning accuracy and stability
- Simultaneous tracking of up to 16 subsea targets
- Multi-Fire technology for optimised beacon refresh rates
- Secure acoustic communications with reduced interference
- Geographical navigation and chart overlays
- EasyCal 2 embedded calibration software with AutoCal Wizard
- Acoustic data telemetry options
- Integrated attitude, heading and temperature sensors
- MIL-specification environmental and electromagnetic compatibility
- Internal positioning data logging
- Compatible with a wide range of Applied Acoustics positioning and release beacons
Typical Uses
- Mine countermeasure operations
- Under-hull inspection
- Diver positioning and tracking
- ROV and AUV tracking
- Defence and security operations
- Subsea inspection and intervention
- Tracking multiple underwater assets
- Long-range subsea positioning
Key Specifications
|
Parameter |
Specification |
|---|---|
|
System model |
EZT-2691 |
|
Transceiver options |
EZT-2686 and EZT-2780 |
|
Operating frequency |
18–32 kHz |
|
Simultaneous targets |
Up to 16 |
|
Acoustic precision |
0.25° DRMS with EZT-2686; 0.07° DRMS with EZT-2780 |
|
Maximum operating range |
Up to 4,000 m, depending on transceiver configuration |
|
Acoustic coverage |
180° with EZT-2686; 170° calibrated coverage with EZT-2780 |
|
Range resolution |
0.01 m |
|
Interrogation rate |
Greater than 2 Hz |
|
Transceiver depth rating |
30 m |
|
Transceiver material |
316 stainless steel |
|
Integrated sensors |
AHRS, pressure and temperature |
|
Standard transceiver cable |
50 m |
|
Maximum cable length |
150 m |
|
Console interfaces |
RS-232, USB and Ethernet |
|
Navigation inputs |
GNSS, heading, motion, target depth and time synchronisation |
|
Environmental compliance |
MIL-STD and DEF STAN environmental testing |