CHC Navigation (CHCNAV) is a global leader in professional marine and maritime survey solutions, delivering innovative technologies for hydrographic, bathymetric, and hydrological data collection.

With a presence in over 130 countries, CHCNAV’s cutting-edge Uncrewed Surface Vessels (USVs) and high-precision sensors are transforming marine survey operations worldwide, as highlighted on their OST supplier profile. Find out more >>
Pioneering Innovation in Marine Surveying
CHCNAV continues to push the boundaries of hydrographic survey technology. The company recently introduced the HQ-400, a compact, high-resolution multibeam echosounder designed for precise underwater mapping. This state-of-the-art system enhances hydrographic and bathymetric surveys with advanced imaging and real-time stabilization, ensuring superior accuracy and efficiency.
Beyond the HQ-400, CHCNAV’s growing portfolio of marine survey solutions includes a range of autonomous USVs and hydrographic sensors tailored to diverse industry needs.
Marine Survey USVs
Apache 3
Designed for efficient bathymetric surveys in lakes, rivers, and coastal areas, the Apache 3 USV is equipped with a single-beam echosounder and a 360-degree video camera. With a compact 1-meter frame and lightweight 7kg build, it offers a highly portable solution that autonomously navigates complex water conditions with ease.
Apache 3 Pro
An advanced iteration of the Apache 3, the Pro model features an impact-resistant double-layer carbon fiber hull and enhanced payload capacity. Integrated RTK-capable GNSS-aided INS technology ensures precision navigation, even in GNSS-denied environments such as under bridges.
Apache 4
The Apache 4 is a versatile survey vessel featuring an integrated single-beam echosounder and compatibility with additional payloads such as ADCPs, CHCNAV’s multibeam echosounders, side-scan sonars, and water quality probes. The combination of high-accuracy GNSS+IMU technology makes it ideal for hydrographic cross-section flow measurements and data acquisition.
Apache 6
Engineered for high-resolution 3D bathymetric surveys and underwater object localization, the Apache 6 features a stable tri-hull design and powerful dual-thruster propulsion. The platform is optimized for offshore construction, dredging, port surveys, and inspections of bridges, dams, pipelines, and cables.

Hydrographic Sensors
D270 Echosounder
A portable, cost-effective single-beam echosounder, the D270 delivers precise depth measurements up to 200 meters. Ideal for river cross-section surveys, reservoir capacity assessments, and dredging volume calculations, it features an integrated water temperature sensor for real-time sound velocity adjustments. Data can be transferred seamlessly via Bluetooth or Wi-Fi.
D390 Echosounder
With a 200 kHz transducer and a 7-degree beam angle, the D390 provides professional-grade single-beam depth measurements reaching 300 meters. The unit boasts a 12-inch HD touchscreen and runs CHCNAV’s HydroSurvey software, enhancing data processing and workflow efficiency.
RS600 & RS1200 ADCPs
The RiverStar series of acoustic Doppler current profilers (ADCPs) deliver high-accuracy water velocity measurements across varying conditions. Available in 600 kHz and 1200 kHz models, these rugged sensors operate at depths of up to 180 meters, making them an essential tool for large-scale hydrological surveys.
HQ-400 Multibeam Echosounder
The HQ-400 integrates sonar, temperature sensors, a pre-calibrated IMU, positioning, and a compass into a single compact unit. With 512 beams (1024 digital), this cutting-edge multibeam echosounder is ideal for capturing high-resolution data in river and lake topography, reservoir volume measurements, and hydrometric applications.
With a strong commitment to technological advancement and precision, CHC Navigation is redefining the marine survey landscape. Whether through autonomous USVs or high-performance hydrographic sensors, CHCNAV’s solutions are streamlining operations and setting new benchmarks for efficiency and accuracy in hydrographic surveying worldwide.
Visit the CHCNAV profile, or visit the company’s website for more information.