Survey

Exail Gaps M5: Export-Free Compact USBL System

Portable Acoustic Tracking for Shallow to Medium Depths

Product Overview The Exail Gaps M5 is the compact, cost-effective sibling to the Gaps M7. It is specifically designed for high-accuracy tracking in ultra-shallow to medium water depths. While it retains the iconic 3D acoustic design of the Gaps series, the M5 is optimized for portability and ease of international transport, being completely export-free (no dual-use license required for most regions).

Like the M7, the Gaps M5 is an "all-in-one" system that integrates an Attitude and Heading Reference System (AHRS) based on Fiber-Optic Gyroscope (FOG) technology. This internal integration means the system is factory-calibrated and requires no on-site alignment, making it perfect for rapid deployment from small boats, USVs, or instrumented buoys.

Why Choose the Exail Gaps M5?

  • Hassle-Free Global Logistics: As an export-free system, it bypasses the strict administrative requirements of the M7, allowing for fast shipment and deployment worldwide.
  • Master of Shallow Water: The unique 3D 4-hydrophone antenna provides a 200° acoustic aperture. It can track targets horizontal to or even slightly above the transceiver, solving the "blind spot" issue common in traditional USBLs.
  • True Calibration-Free Operation: The embedded FOG-based AHRS (Octans Nano) is pre-aligned with the acoustic array. Simply mount the pole, and you are ready to track.
  • Compact & Lightweight: At only 14 kg, it is significantly easier to handle than the M7, making it the preferred choice for small-vessel operations and shallow-water surveys.
  • Positioning & Communication: Functions as both a high-precision tracker and a robust acoustic modem for bi-directional telemetry with subsea assets.

SpecificationDetails
Operating Range995 m (Standard) / 4,000 m (XR Version)
Positioning Accuracy0.2% of Slant Range (CEP50)
Acoustic Precision0.1% of Slant Range
Acoustic Aperture200° (Omnidirectional)
Heading Accuracy0.15° secant latitude (RMS)
Operating Frequency18 – 34 kHz (Medium Frequency)
Weight (Air / Water)14 kg / -5 kg (Positive Buoyancy)
Dimensions (HxDia)520 mm x 296 mm
Deployment DepthUp to 25 m (Antenna depth)
  • Integrated FOG AHRS: Provides high-stability heading, roll, and pitch compensation with a True North reference.
  • Multi-Target Capability: Simultaneously track and communicate with up to 40 subsea targets (ROVs, AUVs, divers).
  • Wideband Signal Processing: Utilizes advanced CHIRP signals to ensure reliable data even in high-noise environments near vessel thrusters.
  • Third-Party Friendly: Open architecture ensures compatibility with most third-party transponders and all major navigation software suites.
  • Modern Web MMI: User-friendly, web-based interface for real-time 3D visualization and system diagnostics without needing specialized software installations.
  • 1769660390_datasheetgaps-m5exail.pdf

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