Data Sheet | User Guide

Training Videos

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Choose Your Configuration

The CHCNAV i89 is available in multiple configurations so you can build the system around your preferred field workflow.

GNSS Configuration

• i89 Rover Kit
• i89 Rover Kit + iBase Base Kit

Tablet & Software Configuration

• None
• TRIPLTEK X PRO + LandStar GNSS Software
• CHCNAV LT800 Tablet + LandStar GNSS Software
• CHCNAV HCE620 Data Collector + LandStar GNSS Software

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What’s Included

i89 Rover Kit

Kit Part Number: 8001 010 366

• 1× A11551980007070507 – CHCNAV i89 GNSS Receiver
• 1× 4101 030 004 – UHF Whip Antenna, 450–470 MHz
• 1× 4103 010 096 – USB Type-C Cable
• 1× 4106 040 057 – Rover Transport Hard Case
• 1× 4106 040 152 – Rover Hard Case Inner Carton
• 1× 4106 040 158 – Rover Hard Case Outer Carton
• 1× 0103 051 069 – CHCNAV GNSS Receiver Case Label
• 1× 4102 020 026 – Range Pole
• 1× 4102 070 001 – Auxiliary H.I. Tool, Silver
• 1× 4104 060 069 – 5 V / 2.4 A Power Adapter

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i89 Rover Kit + iBase Kit

This configuration includes everything in the i89 Rover Kit above, plus the complete CHCNAV iBase GNSS Base Kit – Part Number 8001 010 170.

iBase Base Kit Includes

• 1× A10510980909070005 – CHCNAV iBase GNSS Receiver
• 1× 4101 030 004 – UHF Whip Antenna, 450–470 MHz
• 1× 4106 040 257 – Base Transport Hard Case
• 1× 4106 080 219 – Base Transport Hard Case Foam
• 1× 4106 040 159 – Base Hard Case Inner Carton
• 1× 4106 040 160 – Base Hard Case Outer Carton
• 1× 0103 051 069 – CHCNAV GNSS Receiver Case Label
• 1× 4102 090 001 – Tribrach Adapter
• 1× 4102 070 005 – H.I. Tape
• 1× 4102 040 003 – Tribrach with Optical Plummet
• 1× 4102 010 002 – 30 cm Extension Pole
• 1× 4102 070 001 – Auxiliary H.I. Tool
• 2× 2004 050 055 – 7000 mAh Lithium Batteries
• 1× 2004 050 030 – C300 Battery Charger with Power Adapter and Cord

Tripod is sold separately.

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Tablet & Software Options

No Tablet

Choose None if you already have a compatible Android controller or tablet and do not need an additional data collector with your i89 package.

LandStar software is not included when the "None" option is selected unless purchased separately.

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TRIPLTEK X PRO + LandStar GNSS Software

This option adds the rugged TRIPLTEK X PRO Android tablet for use as the i89 field data collector.

Includes

• 1× TRIPLTEK X PRO Rugged Android Tablet
• 1× Fast Charger
• 1× USB Cable
• 1× Hand Strap
• 1× 4109 020 227 – CHCNAV LandStar Data Collection Software Android GNSS License

The TRIPLTEK X PRO features 12 GB RAM, 512 GB storage, 4G LTE connectivity, IP68 protection, and an ultra-bright 3,000-nit display, making it especially useful for crews working outdoors in strong sunlight.

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CHCNAV LT800 Tablet + LandStar GNSS Software

LT800 Kit Part Number: 4002 020 012

This option provides a large-screen CHCNAV Android tablet for running LandStar and controlling the i89.

Includes

• 1× 4002 020 012 – CHCNAV LT800 Android Tablet Kit
• 1× 4103 010 055 – USB Type-C Cable
• 1× 4104 060 041 – 12 V / 1.5 A Power Adapter, EU
• 1× 0103 051 505 – LT800 Screen Protection Film
• 1× 0103 020 320 – Stylus
• 1× 4190 070 030 – SIM-Eject Tool
• 1× 4106 010 093 – LT800 Quick Guide
• 1× 4109 020 227 – CHCNAV LandStar Data Collection Software Android GNSS License

The LT800's 8.1-inch display provides significantly more screen space for CAD files, maps, stakeout, surfaces, and other LandStar field workflows.

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CHCNAV HCE620 Data Collector + LandStar GNSS Software

HCE620 Kit Part Number: 8001 010 442

This option adds the CHCNAV HCE620 handheld data collector, providing a more traditional survey-controller form factor with an integrated QWERTY keyboard.

Includes

• 1× 8001 010 442 – CHCNAV HCE620 Handheld Data Collector Kit
• 1× 4001 040 034 – HCE620 Handheld GNSS Data Collector, QWERTY
• 1× 4103 010 096 – USB Type-C Cable
• 1× 4104 060 069 – 5 V / 2.4 A Power Adapter
• 1× 0103 020 320 – Android Stylus
• 1× 4102 080 007 – Non-Magnetic Controller Bracket
• 1× 4106 040 171 – Controller Case
• 1× 4106 080 174 – Controller Case Foam Liner
• 1× 4106 080 175 – Controller Case Foam Cover
• 1× 0106 990 001 – Outer Carton Label
• 1× 1906 210 639 – LandStar 8 Data Collection Software for Android
• 1× 4109 020 227 – LandStar Android GNSS License

The HCE620 is a strong choice for surveyors who prefer a dedicated handheld controller with physical keys rather than a tablet-only workflow.

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Overview

The CHCNAV i89 is a compact Visual IMU-RTK GNSS receiver designed for professional land surveying, construction layout, mapping, and engineering applications. It combines a 1408-channel GNSS engine, CHCNAV iStar2.0 technology, a 200 Hz AUTO-IMU, dual integrated cameras, visual surveying, AR stakeout, and an internal UHF radio in a lightweight receiver weighing only 750 g (1.65 lb).

The i89 provides conventional centimeter-level RTK positioning while adding camera-based tools that can make difficult measurements and stakeout workflows considerably easier. Its Visual Survey capability allows coordinates to be determined from captured imagery, while Visual Navigation and AR Stakeout provide intuitive camera guidance toward design points.

When paired with the optional CHCNAV iBase, the system becomes a complete radio base-and-rover RTK solution. Customers can then select the controller that best fits their workflow, from the ultra-bright TRIPLTEK X PRO to CHCNAV's LT800 tablet or HCE620 QWERTY data collector.

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Key Features

• 1408-channel multi-constellation GNSS receiver
• CHCNAV iStar2.0 GNSS technology
• RTK accuracy of 8 mm + 1 ppm horizontal
• Dual integrated cameras
• Visual Survey remote point measurement
• AR Visual Navigation and Stakeout
• Video-based 3D modeling capability
• 200 Hz AUTO-IMU
• Tilt compensation up to 60°
• Integrated 410–470 MHz UHF Tx/Rx radio
• Typical UHF range of approximately 3 km
• Up to 8 km under optimal radio conditions
• Up to 16.5 hours of RTK rover operation
• 18 W fast charging
• Compact 750 g (1.65 lb) design
• IP68 environmental protection
• Designed to survive a 2-meter pole drop
• 8 GB internal storage
• Optional complete iBase base-and-rover package
• Multiple tablet and data collector options
• Available with LandStar GNSS surveying software

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1408-Channel GNSS with iStar2.0

The i89's 1408-channel GNSS engine provides multi-frequency tracking across the major global navigation satellite constellations.

Supported systems include:

• GPS: L1C/A, L2C, L2P(Y), L5
• GLONASS: L1, L2, L3*
• Galileo: E1, E5a, E5b, E6*
• BeiDou: B1I, B2I, B3I, B1C, B2a, B2b*
• QZSS: L1C/A, L1C, L2C, L5
• NavIC / IRNSS: L5
• SBAS: L1, L5*
• PPP: B2b-PPP and E6B-HAS support

CHCNAV's iStar2.0 technology combines multi-constellation tracking with interference and multipath mitigation to improve RTK performance in more challenging satellite environments.

*Signal availability may depend on firmware and satellite services.

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Professional RTK Accuracy

For conventional RTK surveying, the i89 provides:

• Horizontal: 8 mm + 1 ppm RMS
• Vertical: 15 mm + 1 ppm RMS
• Initialization time: Less than 10 seconds
• Initialization reliability: Greater than 99.9%

The receiver also supports PPK, static, rapid-static, and high-precision static GNSS workflows.

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Visual Surveying

The i89's integrated cameras allow points to be measured without always placing the range pole directly on the target.

With Visual Survey, the operator records imagery of the area and selects the desired point from the captured images. LandStar then calculates the corresponding coordinates.

CHCNAV specifies a typical Visual Survey performance of approximately:

• 2–4 cm accuracy
• 2–15 m working range

This can be especially useful when measuring:

• Building corners
• Areas behind fences
• Utility structures
• Excavations
• Slopes
• Traffic areas
• Inaccessible or unsafe points

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AR Visual Stakeout

The i89 also uses its cameras to provide Visual Navigation and AR Stakeout through LandStar.

Rather than working only from arrows and distance values, the operator can view the target directly through a live camera display and follow graphical guidance toward the point.

This provides a more intuitive workflow for:

• Construction layout
• Boundary stakeout
• Utility layout
• CAD stakeout
• Site development
• High-volume point staking

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200 Hz AUTO-IMU Tilt Compensation

The integrated 200 Hz AUTO-IMU allows points to be measured while the survey pole is tilted as much as 60°.

This helps crews work more efficiently next to:

• Walls
• Buildings
• Vehicles
• Fences
• Trenches
• Vegetation
• Other obstacles

The IMU is calibration-free during normal use and does not depend on magnetic heading, helping maintain reliable tilt performance around metal structures and equipment.

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Integrated UHF Radio

The i89 includes an internal 410–470 MHz UHF Tx/Rx radio.

Because the radio supports both receive and transmit operation, the i89 can be configured as either a UHF rover or a UHF base when used with the appropriate accessories.

Radio specifications include:

• 410–470 MHz
• 0.5 W / 1 W transmit power
• CHC
• Transparent
• TT450
• Satel
• Typical range: approximately 3 km
• Optimal conditions: up to approximately 8 km

When the i89 + iBase configuration is selected, the dedicated iBase serves as the primary base station while the i89 operates as the rover.

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Optional iBase GNSS Base Station

For customers who need their own local RTK corrections, the i89 Rover Kit + iBase Kit option provides a complete base-and-rover GNSS system.

The iBase is a dedicated GNSS base station featuring:

• 1408-channel GNSS
• Integrated 5 W UHF radio
• CHCNAV DistLink technology
• Typical radio range of 8–12 km
• Optimal DistLink range up to 30 km
• Dual removable 7000 mAh batteries
• Integrated 4G cellular modem
• Complete tribrach and base mounting accessories

This eliminates the need to depend entirely on a CORS or NTRIP network and provides a dedicated correction source for projects where local radio RTK is preferred.

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LandStar 8 GNSS Data Collection Software

Available tablet configurations include a LandStar Android GNSS License – Part Number 4109 020 227.

CHCNAV LandStar 8 provides the field software used to configure the i89, receive RTK corrections, collect points, stake design data, and manage survey projects.

Major LandStar GNSS functions include:

• RTK GNSS surveying
• NTRIP / CORS connections
• UHF radio workflows
• Point collection
• Control point surveying
• Continuous survey
• Static and PPK workflows
• Visual Survey
• AR Visual Stakeout
• Point and line stakeout
• CAD stakeout
• Surface stakeout
• Road stakeout
• Site calibration
• Coordinate system management
• Code libraries
• Surfaces and volumes
• DWG / DXF support
• Import and export tools

Selecting one of the tablet + LandStar options provides a complete field data collection setup without requiring a separate controller purchase.

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Choose the Controller That Fits Your Workflow

TRIPLTEK X PRO

Best suited for users who want a very bright, large-screen rugged Android tablet. Its 3,000-nit display is particularly useful for working with LandStar outdoors in direct sunlight.

CHCNAV LT800

A purpose-built CHCNAV rugged field tablet with a large 8.1-inch display, ideal for CAD, mapping, construction layout, and users who prefer more screen area.

CHCNAV HCE620

A dedicated survey data collector with a physical QWERTY keyboard, controller bracket, protective case, and traditional handheld survey-controller workflow.

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Dealer Support & Training

Purchasing your CHCNAV system from Absolute Accuracy gives you more than just the hardware. We provide direct dealer support to help customers get their equipment configured and working correctly in the field.

If needed, we can assist with:

• Initial i89 receiver setup
• iBase base-and-rover configuration
• UHF radio setup
• NTRIP / CORS configuration
• LandStar installation and licensing
• Coordinate system setup
• Connecting your controller to the receiver
• Basic LandStar data collection and stakeout workflows
• General product training and troubleshooting

Whether you're moving to CHCNAV from another GNSS platform or purchasing your first RTK system, training and setup assistance are available to help get your crew productive quickly.

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Long Battery Life

The i89 uses an integrated 7.2 V / 4900 mAh lithium-ion battery.

Maximum operating times include approximately:

• 16.5 hours – UHF / 4G RTK Rover without cameras
• 9.5 hours – Visual Survey / Visual Stakeout
• 10 hours – UHF RTK Base
• 22 hours – Static operation

The receiver also supports 18 W fast charging, with approximately three hours required for a full charge under appropriate conditions.

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Rugged and Lightweight

At only 750 g (1.65 lb), the i89 is designed to minimize weight on the rover pole while still integrating GNSS, cameras, IMU, UHF radio, battery, and wireless communications.

Field protection includes:

• IP68
• 2-meter pole-drop resistance
• MIL-STD-810H vibration compliance
• Operating temperature from -40°C to +65°C (-40°F to +149°F)
• Storage temperature from -40°C to +85°C (-40°F to +185°F)

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Ideal Applications

The CHCNAV i89 is well suited for:

• Boundary surveying
• Topographic surveying
• Construction layout
• Site development
• As-built surveys
• Cadastral surveying
• Utility surveying
• Road and infrastructure projects
• Visual Survey
• Remote point collection
• AR-assisted stakeout
• CAD-based construction layout
• Tilt-compensated surveying
• UHF RTK
• NTRIP / CORS RTK
• Base-and-rover surveys
• Static and PPK GNSS

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Technical Specifications

GNSS Channels: 1408

RTK Accuracy

• Horizontal: 8 mm + 1 ppm RMS
• Vertical: 15 mm + 1 ppm RMS
• Initialization: <10 seconds
• Reliability: >99.9%

PPK

• Horizontal: 3 mm + 1 ppm RMS
• Vertical: 5 mm + 1 ppm RMS

High-Precision Static

• Horizontal: 2.5 mm + 0.1 ppm RMS
• Vertical: 3.5 mm + 0.4 ppm RMS

Visual Survey

• Typical Accuracy: 2–4 cm
• Working Range: 2–15 m

IMU

• 200 Hz AUTO-IMU
• 0–60° tilt
• Calibration-free
• Magnetic interference resistant

Cameras

• Dual cameras
• Visual Survey
• Visual Navigation
• AR Stakeout
• 3D modeling support

UHF

• Tx/Rx
• 410–470 MHz
• 0.5 W / 1 W
• Typical Range: 3 km
• Optimal Range: Up to 8 km

Wireless

• Bluetooth 4.2
• Wi-Fi 802.11 b/g/n/ac
• NFC

Storage: 8 GB

Battery: 7.2 V / 4900 mAh

Runtime

• RTK Rover: Up to 16.5 hours
• Visual Survey / Stakeout: Up to 9.5 hours
• UHF Base: Up to 10 hours
• Static: Up to 22 hours

Ingress Protection: IP68

Drop Rating: 2 m pole drop

Dimensions: Ø133 × 87 mm

Weight: 750 g / 1.65 lb

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Build a Complete i89 RTK System

The CHCNAV i89 combines survey-grade RTK positioning, visual measurement, AR stakeout, AUTO-IMU tilt compensation, and integrated UHF communication in a compact receiver. With selectable iBase base-station, tablet, and LandStar software options, the system can be configured as anything from a standalone rover for an existing survey setup to a complete turnkey base-and-rover package with field controller and software.