CHCNAV i83 Smart IMU-RTK GNSS with Robust Connectivity

The CHCNAV i83 Smart IMU‑RTK GNSS Receiver is a high-precision GNSS instrument built for surveying, construction and mapping professionals.
Supports full multi-constellation GNSS (GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS) with 1408 channels for robust signal tracking even in challenging environments.
Built-in 200 Hz inertial measurement unit (IMU) sensor with automatic pole-tilt compensation up to ~30° increases productivity and accuracy.
Comprehensive connectivity: WiFi, Bluetooth, NFC, 4G modem and UHF radio (410 – 470 MHz) for flexible base/rover and network RTK workflows.
Ruggedized design: magnesium alloy body with IP67 rating and MIL-STD-810H compliance for dust, water, shock and vibration resistance.
Long endurance battery: up to ~34 hours continuous Rover operation (RTK mode) on a single charge.
Compact and portable: approx. 1.15 kg weight and dimensions ~152 × 78 mm

Description

CHCNAV i83 Smart IMU-RTK GNSS with Robust Connectivity

Feature Category	Specification
GNSS Channels & Constellations	1408 channels supporting GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS.
IMU Sensor	200 Hz inertial measurement unit (IMU) for pole-tilt compensation (~30°) with calibration-free operation.
Accuracy (RTK)	Up to 0.8 cm horizontally / 1.5 cm vertically under ideal conditions.
Connectivity – Wireless	WiFi, Bluetooth, NFC built-in.
Connectivity – Cellular	4G LTE modem integrated for NTRIP / network RTK.
Connectivity – Radio	UHF modem 410 – 470 MHz, Rx/Tx, for base/rover radio RTK.
Display	1.1″ colour OLED status display.
Body & Protection	Magnesium alloy body; IP67 rated (dust & water resistance) and meets MIL-STD-810H (shock/vibration).
Dimensions	152 × 78 mm (approx).
Weight	~1.15 kg.
Battery Life	Up to ~34 hours continuous RTK rover operation; ~16 hours RTK base station operation.
Operating Temperature	(Not explicitly detailed in summary; refer to full datasheet)
Tilt Compensation	Supports pole-tilt measurement (up to ~30°) increasing efficiency by ~30%.
Initialization Time	RTK fixed within ~30 seconds under favourable conditions.
Additional Features	Smart power management, supports raw data logging, base/rover modes, network RTK, rugged field-use design.

CHCNAV i83 Highlights

The CHCNAV i83 GNSS Receiver delivers exceptional precision and performance for surveying, construction, and mapping professionals. Designed as a smart IMU-RTK GNSS solution, it combines advanced positioning technology with robust connectivity options — including Wi-Fi, Bluetooth, NFC, UHF, and a built-in 4G modem — to ensure seamless data transmission in any environment.

With its intelligent power management system, the i83 provides up to 34 hours of continuous RTK rover operation, empowering users to work longer, faster, and more efficiently in the field. Its rugged design and calibration-free tilt compensation IMU make it the perfect companion for demanding field applications where accuracy and reliability matter most.

CHCNAV i83 Features

CHCNAV i83 Smart IMU-RTK GNSS with Robust Connectivity

High-Performance GNSS

The CHCNAV i83 GNSS receiver delivers centimeter-level precision even in the most challenging environments. With 1408 tracking channels supporting GPS, GLONASS, Galileo, BeiDou, QZSS, and SBAS constellations, it ensures fast, stable, and accurate positioning. Designed for professional surveyors, it boosts overall surveying quality and field efficiency with superior satellite tracking performance.

Comprehensive Connectivity

Stay connected anywhere with the i83’s built-in Wi-Fi, Bluetooth, NFC, UHF radio, and 4G modem. These multiple communication options make it effortless to connect with field controllers, tablets, and data collection software, enabling smooth data transfer, real-time corrections, and flexible GNSS workflows.

Pole Tilt Compensation

Boost your productivity by up to 30% with the i83’s calibration-free IMU tilt compensation. The advanced sensor allows precise measurements at angles up to 60°, eliminating the need for perfect pole leveling and helping you capture accurate points faster and more efficiently — even in obstructed environments.

High-Resolution Display

Easily monitor every operation through the 1.1-inch color OLED display. The crisp, high-contrast screen provides real-time system status, satellite tracking, and connectivity updates, giving you complete control and confidence during fieldwork.

Rugged and Durable Design

Built to perform in any environment, the i83 features a lightweight magnesium alloy body that’s both rugged and reliable. With its IP67 protection and resistance to shocks, dust, and water, it’s ready to withstand tough field conditions without compromising performance.

Extended Battery Life

Work longer without interruption. The i83’s powerful 9600 mAh battery delivers up to 34 hours of continuous RTK rover operation or 16 hours as a base station, ensuring maximum uptime and uninterrupted productivity during demanding survey projects.