M6 GNSS receiver is a new-generation high-end GNSS network receiver designed for RTK field survey.

Key Features
● High end network rover solution
● 3.75G network modem
● Built-in Bluetooth and WiFi communication 
● 220 channels multi-constellation receiver
● 32 GB internal memory
Integrated with powerful GNSS engine, M6  performs top-level GNSS satellite tracking and positioning capacity. GPS, GLONASS, Galileo and BDS supports M6 seamless working in every corner around the world.

Various modules provide the most professional and convenient solution in network RTK mode. Bluetooth and WiFi modules enable an easy and quick access in the field even with your smartphone for setting or data download. Internal 3.75G network modem offers not only general NTRIP service but also CHC APIS method like traditional RTK with one base and one rover to cover no NTRIP service region.

Compatible with field data collection software running on Android OS, M6 is the best choice for a future-proof GNSS receiver, offering you more options at present or in the future.

The i70+, the next generation of smart receivers selected by surveyors and other users for its outstanding performance and reliability.
Hardware Description
The i70+ leverages the latest GNSS technology by integrating 555 channels with field software dedicated to topographic and construction surveying.

i70+’s small rugged, ergonomic design with integrated sensors (4G network modem, UHF radio, WIFI, Bluetooth and Ebubble), a high-resolution display and dual hot-swappable batteries makes it a continuous uninterrupted workhorse for tough challenging environments. High resolution LCD panel also exploits new method for surveyors to check receiver working states. All these features integrated into a small, ergonomic package allows the most productive day of a surveyor.
Core Technology
555 Channels Multi-constellation
High-precision tracking of GPS/GLONASS/Galileo/BeiDou/SBAS.

L-Band PPP
Compatible with L-Band, i70+ can can work either as a base or rover without any limitation in remote regions where the cell tower and GNSS base are not easily accessible.

Internal 4G Network Modem
Provides hotspot that allows the controller to access the Internet without the use of a SIM.

Full-range RTK UHF
i70+ operates between UHF frequencies 410 MHz - 470 MHz with up tp 5 km radio range.

Rugged Body Design
Rugged durable design meets MIL-STD-810G (Method 514.7) and highest environmental standards for water and dust and can survive a 2 m drop test onto concrete.

i80 represents the pinnacle of productivity on today’s jobsite. Leading technology with superior capabilities, i80 is able to track all GNSS constellations: GPS, GLONASS, Galileo, BDS, QZSS and SBAS.

Key Features
● 220 channels multi-constellation receiver
● 128 × 64 dpi sunlight readable LCD panel
● 3.75G network modem
● Internal TRx UHF
● Built-in Bluetooth and WiFi communication
● RTK data forwarding
● Dual hot-swappable batteries
● 32 GB internal memory

Incorporated with dual hot-swappable batteries, i80 is capable of working continuously without interruption and considered the smartest GNSS receiver in the market. Integrated 3.75G network modem, Rx/Tx UHF module, E-bubble, Bluetooth and WiFi connectivity provide a seamless solution in the field. High-resolution LCD panel also exploits new method for surveyors to check the working states of a receiver. All these features integrated into a small but ruggedized package can help to achieve the most productive day of surveying possible.

CHC continues to build on its reputation for reliability. i80 is constructed of cast magnesium chassis with double sealed gaskets, protected connectors, and vibration dampened internal parts. This contributes to the outstanding field survivability of IP67, the ability to resist 2 m pole fall onto concrete and high vibration environment.


CHC Navigation has released its i90 GNSS Series powered by the latest CHCNAV IMU-RTK technology to provide robust and accurate GNSS positioning, in any circumstances. The i90 IMU-RTK GNSS Series is designed to dramatically increase GNSS RTK availability and reliability.
The i90 GNSS IMU-RTK combines a high-end calibration and interference free IMU sensor with state-of-the-art GNSS RTK engine and advanced GNSS tracking capabilities. Survey projects are achieved with high productivity and reliability.
Hassle-free IMU-RTK surveying
The i90 GNSS Series goes without a complicated calibration process, rotation, leveling or accessories are necessary with the i90 GNSS Series. Just a few meters walk will initialize the i90 internal IMU sensor and enable RTK survey in difficult field environments. According to CHC Navigation, the i90 GNSS automatic pole-tilt compensation boosts survey and stakeout speed by up to 20%.
In commenting on the CHCNAV i90 GNSS Series, George Zhao, CEO of CHC Navigation said: “Our new i90 IMU-RTK GNSS Series is pushing the boundaries of conventional GNSS survey by extending RTK positioning availability and reliability. CHCNAV is the GNSS technology enabler making high-end GNSS solutions available for every surveyor.”