The i93 is CHC Navigation's flagship IMU-RTK GNSS smart antenna, combining a 1892-channel multi-constellation receiver with an auto-tilt IMU and dual cameras for visual surveying and stakeout in centimeter-level precision.
CHCNAV i93
The i93 is CHC Navigation's flagship IMU-RTK GNSS smart antenna, combining a 1892-channel multi-constellation receiver with an auto-tilt IMU and dual cameras for visual surveying and stakeout in centimeter-level precision.
Description
The CHCNAV i93 is an advanced IMU-RTK GNSS smart antenna designed for professional surveyors, construction, and mapping teams who need reliable centimeter-level positioning in demanding field conditions. It tracks all major satellite constellations (GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS, and NavIC/IRNSS) via a 1892-channel receiver and uses CHC's iStar positioning algorithm to maintain a reliable fix even during periods of high solar/ionospheric activity. The unit integrates a 200 Hz auto-tilt IMU that removes the need for bubble-leveling, and pairs this with a dual-camera visual positioning system that enables augmented-reality stakeout and photo-based 3D modeling directly in the field. Built-in 4G LTE and a UHF radio modem, along with Wi-Fi, Bluetooth, and NFC, give it flexible connectivity to CORS networks or CHCNAV's PointSky PPP correction service. In RTK mode the i93 achieves 0.8 cm horizontal / 1.5 cm vertical accuracy. Housed in a rugged, IP68-rated, magnesium-alloy body rated for 2-meter drops, the receiver runs up to 34 hours as a rover on its 9900 mAh battery, and is marketed for topographic, boundary, and as-built surveys, construction stakeout, and 3D city/infrastructure modeling.
Specifications
| GNSS constellations | GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS, NavIC/IRNSS |
|---|---|
| Receiver channels | 1892-channel |
| Rtk accuracy (horizontal) | 0.8 cm |
| Rtk accuracy (vertical) | 1.5 cm |
| Pointsky ppp accuracy | 2.5 cm horizontal / 5 cm vertical |
| IMU update rate | 200 Hz, auto-tilt compensation |
| Cameras | Dual camera system for visual/AR stakeout |
| Connectivity | Bluetooth, Wi-Fi, NFC, 4G LTE, UHF radio modem (410-470 MHz) |
| Battery life (RTK rover) | Up to 34 hours |
| Operating temperature | -40°C to +65°C |
| IP rating | IP68 |
| Mass | 1.15 kg |
