CHCNAV i89 Pocket Sized Visual IMU-RTK GNSS
The CHCNAV i89 Visual IMU GNSS is a compact surveying tool equipped with a 1408-channel GNSS module, which enhances RTK availability, even in challenging environments. Its CHCNAV iStar2.0 software incorporates advanced ionospheric modeling algorithms, achieving high integrity RTK fix rate, particularly critical in regions of intense solar activity. The implementation of AUTO-IMU technology eliminates the need for manual initialization, streamlining field operations for increased efficiency. In addition, the i89 offers an impressive 16.5 hours of battery life and a lightweight 750g design, ensuring optimal productivity throughout various day-to-day surveying tasks.
GNSS Sensors
iSTAR 2.0 & IONOSPHERE MITIGATION
GNSS Sensors
AR NAVIGATION & STAKEOUT
50% time savings for less experienced operators
The i89’s AR visual navigation and staking simplify field operations, saving even the most inexperienced operators up to 50% of their time. By tightly integrating technologies, the i89’s GNSS, IMU, and Visual systems are 10 times more reliable than standard gyroscopes-based GNSS. The 1.5 GHz processor enables seamless dual-camera operation, while 5.8 GHz adaptive Wi-Fi ensures fast AR data transfer. Virtual Pole Tip™ (VPT™) technology enables real-time visualization of points over the CAD project design. Versatile AR Stakeout supports a wide range of applications, including linear, CAD-based, boundary staking, and more.
VISUAL SURVEY EXCELLENCE
Measure previously inaccessible points with precision
The i89 brings the power of vision to GNSS surveying, enabling accurate measurements of points where signals are obstructed, or access is difficult or unsafe. Its premium cameras extract survey-grade 3D coordinates from real-world video, offering efficiency and reliability. Dynamic panoramic capture mode with 85% overlap improves efficiency by 60% for exceptional accuracy. The integration of a high-precision IMU data into the video photogrammetry algorithm significantly improves point measurement performance.
AUTO-IMU TECHNOLOGY
Efficiency and Precision in Every Measurement
The i89’s built-in, interference-free 200 Hz Auto-IMU eliminates the need for manual initialization and provides reliable measurements. Automatic pole tilt compensation guarantees accuracy to within 3 cm over a 60-degree tilt range, saving up to 30% time while maintaining accuracy.
A GNSS smart antenna, such as the i89, integrates a GNSS receiver with an antenna and communication modules. This combination provides high-precision positioning and reliable signal reception in a single device, making it extensively used in surveying and geospatial applications.
The i89 supports GPS, GLONASS, Galileo, and BeiDou constellations, ensuring robust signal tracking and high accuracy.
The i89’s dual cameras extract survey-grade 3D coordinates from real-world video, enabling precise measurements of previously inaccessible points.
The i89 measures 133 mm x 87 mm and weighs 750 g, making it a compact and portable solution for field surveys.