Description
CHCNAV i76
Palm-Sized GNSS with Visual Positioning
| Category | Specification |
|---|---|
| Model | CHCNAV i76 |
| Channels | 1408 channels with iStar 2.0 hybrid GNSS engine |
| GNSS Constellations & Bands | GPS (L1C/A, L2C, L2P(Y), L5), Galileo (E1, E5a, E5b, E6*), GLONASS (L1, L2, L3*), BeiDou (B1I, B2I, B3I, B1C, B2a, B2b*), QZSS (L1C/A, L1C, L2C, L5), SBAS (L1, L5*) *via firmware upgrade |
| RTK Real-Time Kinematics Horizontal Accuracy | 8 mm + 1 ppm (RMS) |
| RTK Real‐Time Vertical Accuracy | 15 mm + 1 ppm (RMS) |
| Initialization Time | <10 s |
| Initialization Reliability | >99.9% |
| IMU Update Rate | 200 Hz (5th Gen Ultra-IMU) |
| Camera / Visual Sensor | Dual 2 MP cameras, 95° field of view |
| Tilt Compensation | Automatic pole-tilt up to 60°; horizontal uncertainty typically < 8 mm + 0.7 mm/° tilt |
| Storage / Memory | 8 GB high-speed memory |
| Battery Life (RTK Rover, no camera) | Up to 17 hours |
| Operating Temperature Range | –40 °C to +65 °C |
| Ingress Protection | IP68 (IEC 60529) |
| Drop Resistance | 2 m pole drop survival |
| Weight | Approx. 450 g |
| Size / Dimensions | Ø 106 mm × 55.6 mm |
| Communications / Ports | USB Type-C (external power, data download, OTG firmware update); UHF antenna port (SMA female) |
| UHF Radio (Internal Tx/Rx) | 410-470 MHz, transmit power 0.5 W/1 W, link rate 9,600-19,200 bps, protocols CHC, Transparent, TT450, Satel |
| Wireless | WiFi 2.4GHz 802.11g; WiFi 5GHz 802.11ac; Bluetooth v5.4; NFC for pairing |
| Drop / Impact Standards | IK08 (IEC 62262:2002) |
| Data Formats | RTCM 2.x, 3.x; CMR input/output; HCN, RINEX 2.11 & 3.02; NMEA 0183 output; NTRIP client and caster support |
Highlights – CHCNAV i76 Palm Visual RTK
The CHCNAV i76 Palm Visual RTK redefines modern surveying with its compact, high-performance design. This lightweight GNSS receiver integrates advanced GNSS, IMU, and dual camera technology to deliver unmatched precision and efficiency in the field.
Weighing only 450 grams and built with a rugged IP68-rated body, the i76 performs flawlessly even in harsh environments. Its powerful hybrid GNSS engine maintains a 96% RTK fixed rate, ensuring consistent accuracy even in areas affected by strong solar activity.
Featuring CAD AR visual stakeout, the i76 enables intuitive, real-time visual guidance for precise path planning and point staking. The 5th-generation Ultra-IMU offers reliable tilt compensation up to 60°, allowing professionals to capture accurate data without leveling the pole.
With a long-lasting 17-hour battery life, the CHCNAV i76 keeps you productive throughout the day. Designed for surveyors, engineers, and geospatial professionals, it combines portability, accuracy, and smart visual technology to make every measurement faster, simpler, and more reliable.
CHCNAV i76 Features
Advanced CAD Visual Stakeout
Boost your stakeout efficiency by up to 40% with the i76’s CAD AR visual stakeout technology. This smart system merges base maps with augmented reality (AR), allowing surveyors to plan paths visually and see stakeout points in real time. Experience faster, more intuitive, and more accurate fieldwork with every measurement.
High-Precision GNSS Positioning
Achieve exceptional GNSS accuracy powered by CHCNAV’s 4th-generation air-medium antenna and iStar 2.0 hybrid engine. The i76 maintains a 96% RTK fixed rate, even in areas with strong solar interference—ensuring you always collect consistent, high-reliability data in challenging environments.
5th-Generation Ultra-IMU
Reach new levels of precision with the 5th-generation Ultra-IMU, enhancing measurement accuracy by up to 30%. The system automatically compensates for pole tilt up to 60°, maintaining centimeter-level accuracy (within 3 cm)—no manual initialization required.
Smart Positioning System
The i76 integrates GNSS, IMU, and dual wide-angle cameras into a single, intelligent unit. This smart positioning system enables seamless real-time measurement and visual stakeout with instant visual feedback, helping professionals capture and verify data effortlessly.
Compact and Lightweight Design
Work more efficiently with the palm-sized CHCNAV i76, engineered for comfort and portability. Weighing only 450 g, it’s 40% lighter and 50% smaller than standard RTK receivers, making field operations smoother and less fatiguing throughout the day.
Durable and Robust Construction
Take on any environment with confidence. The CHCNAV i76 is IP68-rated and 2-meter drop-resistant, built with a rugged biomimetic housing and a sapphire camera lens for maximum durability. It’s designed to perform reliably in harsh weather, rugged terrain, and demanding field conditions.
CHCNAV i76 Use cases
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