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April 6th, 2022
CHC Navigation introduces the i83 IMU-RTK GNSS Receiver

The i83 is the most universal GNSS system that every construction and surveying professional needs to meet every job site configuration.


Shanghai, China  – CHC Navigation (CHCNAV) today announced the availability of the i83 GNSS receiver, a new and innovative addition to its premium GNSS receiver series for surveying, mapping and construction professionals. The i83 GNSS is powered by 1408-channel multi-band GNSS, the latest iStar technology, and a calibration-free, high-end IMU sensor for faster and reliable field GNSS surveying.

“The i83 receiver combines GNSS and IMU into one single receiver to provide optimal automatic pole tilt compensation that requires no calibration and is fully immune to magnetic interference. Operators just need to focus on their tasks and no longer need to level their pole vertically,” said Rachel Wang, Product Manager of CHC Navigation’s Surveying and Engineering Division. “In addition, we design a high-resolution color display where users can clearly and intuitively get the GNSS receiver status to take full control of their survey operation.”


Improve survey performance in challenging GNSS environments – The third-generation high-gain antenna with the latest advanced CHCNAV iStar algorithm improves GNSS satellite signal tracking efficiency by over 30%. The i83 GNSS receiver features 1408 GNSS channels for unparalleled performance across GPS, Glonass, BeiDou, Galileo and QZSS constellations. The i83’s onboard GNSS technology delivers centimeter-level positioning, maintains reliable fixed RTK accuracy, and collects points faster than ever before, even in demanding conditions.

Compensate for pole tilt automatically – The i83 GNSS’ built-in IMU automatically compensates for pole tilt, increasing surveying, engineering and mapping efficiency by 30% over conventional GNSS RTK surveying methods. In less than 5 seconds, the 200 Hz inertial module is initialized to ensure survey-grade accuracy over a pole tilt range of up to 30 degrees. Productivity is dramatically increased, RTK usability greatly improved, and potential human error reduced, whether you are an engineer, site foreman or surveyor.

Universal GNSS tool for surveyors in all their projects – Integrated Wi-Fi, Bluetooth and NFC modules provide seamless connection to field data controllers or tablets. Integrated 4G and UHF modems enable any GNSS survey mode, from RTK Networks NTRIP connections to UHF base-rover configurations. GNSS RTK corrections can be accessed or broadcasted continuously for accurate positioning in all circumstances.

Increased operation time in the field – Users do not need to carry backup or external batteries in the field thanks to the i83 GNSS’ ultra-low power SoC (system-on-chip) electronic design and smart power management. The i83 GNSS can operate for up to 18 hours as an GNSS RTK network rover or more than 8 hours as an RTK base station.

The i83 GNSS receiver is available worldwide today through the CHCNAV distribution network.


About CHC Navigation:


CHC Navigation (CHCNAV) creates innovative GNSS navigation and positioning solutions to make customers’ work more efficient. CHCNAV products and solutions cover multiple industries such as geospatial, construction, agriculture, and marine. With a presence across the globe, distributors in more than 120 countries, and more than 1,500 employees, today CHC Navigation is recognized as one of the fastest-growing companies in geomatics technologies. For more information about CHC Navigation [Huace:300627.SZ], please visit: