User Guide - Training Videos

What’s Included - CHCNAV LT800H RTK Tablet Kit

Kit Part Number: 4002 020 015

• 1× 4002 020 015 - CHCNAV LT800H RTK Tablet Kit
• 1× 4103 010 055 - USB Type-C Cable
• 1× 4104 060 019 - 12 V / 1.5 A Power Adapter, US
• 1× 0103 051 505 - LT800 Screen Protection Film
• 1× 0103 020 320 - Stylus
• 1× 4190 070 030 - SIM-Eject Tool
• 1× 4106 010 094 - LT800H Quick Guide
• 1× 0101 020 414 - Helix Antenna

What’s Included - CHCNAV LT800 Android Tablet Kit

Kit Part Number: 4002 020 012

• 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

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Overview

The CHCNAV LT800 and LT800H are rugged 8.1-inch Android tablets built for professional surveying, construction, mapping, GIS data collection, and other demanding field applications. Both models combine a sunlight-readable high-resolution display, Android operating system, 4G LTE connectivity, Wi-Fi, Bluetooth, NFC, large internal storage, and an IP67-rated housing in a compact tablet weighing approximately 1.2 lb.

The primary difference is the integrated GNSS positioning capability. The standard LT800 includes a 45-channel GNSS module intended for meter-level positioning, while the LT800H upgrades the tablet with a professional 1408-channel multi-frequency GNSS RTK engine capable of centimeter-level positioning. This makes the LT800 an excellent rugged data collector for use with an external GNSS receiver, while the LT800H can also perform high-accuracy GNSS measurements directly from the tablet itself.

Both tablets are ideal companions for CHCNAV LandStar 8, providing a large field interface for survey data collection, stakeout, CAD viewing, coordinate management, and other field workflows.

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Key Features

• Available as LT800 or high-precision LT800H
• Large 8.1" sunlight-readable touchscreen
• 1920 × 1200 resolution
• 600-nit IPS display
• Corning Gorilla Glass 3
• Android operating system with Google Mobile Services
• 2.0 GHz octa-core processor
• 8 GB RAM / 256 GB storage
• MicroSD expansion
• Built-in 4G LTE modem
• Wi-Fi, Bluetooth 5.1, and NFC
• USB Type-C with OTG support
• 8 MP front camera
• 16 MP rear camera with integrated flash
• 9,000 mAh internal battery
• IP67 dust and water protection
• Survives a 1.2 m drop onto concrete
• MIL-STD-810H vibration resistance
• Designed for use with CHCNAV LandStar 8
• LT800H adds a 1408-channel multi-frequency GNSS RTK module
• LT800H provides up to 2 cm horizontal RTK positioning

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LT800 vs. LT800H

The two tablets share the same basic form factor and field-computing platform, but they are designed for different positioning requirements.

 

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CHCNAV LT800: Rugged Field Data Collector

The CHCNAV LT800 is designed primarily as a rugged Android field tablet and data collector. Its internal 45-channel GNSS module tracks GPS, GLONASS, BeiDou, and Galileo signals and provides approximately 2–5 meter autonomous horizontal positioning.

For centimeter-level RTK surveying, the LT800 can be paired with a dedicated GNSS receiver such as the CHCNAV i76, i83, i85, i89, i93, or ViLi i100. In this configuration, the external receiver performs the high-precision GNSS positioning while the LT800 runs LandStar and serves as the field interface.

This makes the LT800 a strong choice for users who need:

• A large-screen GNSS data collector
• Construction layout with an external GNSS rover
• Survey point collection
• CAD-based stakeout
• GIS field data collection
• Mapping
• Field project management
• A rugged Android replacement for a consumer tablet

The current LT800 specification provides 8 GB RAM, 256 GB internal storage, and MicroSD expansion up to 1 TB, giving it substantial capacity for CAD drawings, imagery, maps, project files, and field documentation.

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CHCNAV LT800H: Integrated Survey-Grade RTK GNSS

The CHCNAV LT800H takes the LT800 platform and adds a significantly more capable 1408-channel multi-frequency GNSS module.

Unlike the standard LT800, the LT800H can perform centimeter-level RTK positioning directly from the tablet without requiring a separate GNSS receiver for applications where tablet-mounted positioning is appropriate. CHCNAV specifies maximum RTK accuracy of approximately 2 cm horizontal.

Supported GNSS signals 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*

*Signal availability may depend on firmware and satellite service availability.

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LT800H RTK, PPK, and PPP Positioning

The LT800H supports several professional GNSS positioning workflows beyond basic autonomous positioning.

RTK

CHCNAV specifies:

• Horizontal: 2 cm HRMS
• Multi-constellation, multi-frequency RTK
• Compatible with standard GNSS RTK network correction services

PPK

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

PPP

The LT800H supports PPP-B2b and Galileo E6B-HAS.

CHCNAV specifies PPP performance of:

• Without external antenna: 10 cm H / 20 cm V
• With external antenna: 5 cm H / 10 cm V
• Initialization: less than 3 minutes under appropriate conditions

This gives the LT800H significantly more flexibility for GIS, mapping, asset collection, and other applications where integrating the GNSS receiver and field computer into one device simplifies the workflow.

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8.1" Sunlight-Readable Display

Both LT800 variants use an 8.1-inch IPS touchscreen with a resolution of 1920 × 1200.

The screen provides:

• 600 cd/m² brightness
• Glare-resistant design
• Capacitive 5-point multi-touch
• Corning Gorilla Glass 3
• IPS display technology

The larger screen provides considerably more viewing area than a traditional handheld controller, making it especially useful when working with CAD drawings, aerial imagery, surfaces, road designs, maps, and large point datasets.

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Android Field Computing

The LT800 platform runs Android and is designed to function as both a professional field controller and a general-purpose mobile computing device.

Current models feature:

• 2.0 GHz octa-core processor
• 8 GB RAM
• 256 GB internal storage
• MicroSD expansion
• Google Mobile Services certification

Google Mobile Services support provides access to common Android applications alongside professional surveying software, allowing crews to use cloud storage, email, mapping applications, file management tools, and other field applications from the same device.

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LandStar 8 Data Collection Software

The LT800 and LT800H are designed to work closely with CHCNAV LandStar 8, CHCNAV's Android field data collection software for professional surveying, engineering, mapping, GIS, construction layout, road stakeout, pipeline work, and other geospatial applications.

LandStar provides a complete field workflow for:

• GNSS RTK data collection
• Point surveying
• Control point surveying
• Continuous surveying
• Static and PPK workflows
• Point and line stakeout
• Surface stakeout
• Foundation stakeout
• Road stakeout
• CAD viewing and stakeout
• Site calibration
• Coordinate systems and transformations
• Surfaces
• Volumes
• Code libraries
• Import and export
• Project management
• Cloud collaboration

LandStar also supports extensive CAD, GIS, coordinate, and survey file compatibility, including formats such as DWG, DXF, SHP, KML, KMZ, CSV, XLSX, LandXML, Trimble JXL, Trimble DC, and Leica LOK, depending on the workflow.

LandStar Licensing

LandStar licensing is available in three primary configurations:

• LandStar GNSS License
• LandStar TPS / Total Station License
• LandStar GNSS + TPS License

The GNSS and total station functions are licensed independently, allowing the software configuration to match the instruments being used.

LandStar licensing should be selected separately according to the required configuration unless specifically included with the selected product package.

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Connect External CHCNAV GNSS Receivers

When used as a controller, the LT800 or LT800H can run LandStar while connecting to compatible CHCNAV GNSS receivers.

This provides a large-screen interface for configuring RTK corrections, creating projects, managing coordinate systems, collecting survey points, and performing stakeout.

The LT800 user guide specifically walks users through launching LandStar 8, creating a project, assigning a coordinate system, connecting GNSS instrumentation, and beginning field survey operations.

For professional boundary, topographic, construction, and control surveying, pairing either tablet with a dedicated survey-grade GNSS receiver provides the familiar receiver-on-pole + tablet/controller workflow.

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4G LTE, Wi-Fi, Bluetooth, and NFC

Both tablets provide multiple communication methods for field connectivity.

Available connectivity includes:

• 4G LTE
• Wi-Fi 802.11 a/b/g/n/ac
• Bluetooth 5.1
• NFC
• USB Type-C
• USB OTG

The integrated cellular modem is particularly useful for NTRIP / CORS RTK corrections, allowing LandStar and connected GNSS equipment to access network correction services without relying on a separate smartphone hotspot.

The standard LT800 also supports dual Nano-SIM cards according to CHCNAV's current data sheet.

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8 MP Front and 16 MP Rear Cameras

Both models incorporate:

• 8 MP front camera
• 16 MP rear camera
• Integrated rear flash

The cameras can be used for field documentation, site photographs, asset records, GIS attributes, project documentation, and general Android camera applications.

When combined with LandStar GIS attributes, photographs and other multimedia information can be associated with collected field data.

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Rugged IP67 Construction

The LT800 platform is designed specifically for outdoor field work rather than office-only tablet use.

Both models feature:

• IP67 dust and water protection
• Survival from a 1.2 m drop onto concrete
• MIL-STD-810H vibration resistance
• 5%–95% non-condensing humidity tolerance
• Operating temperature from -20°C to +60°C (-4°F to +140°F)
• Storage temperature from -40°C to +70°C (-40°F to +158°F)

 

The IP67 rating provides protection against dust and temporary water immersion, helping make the tablets suitable for surveying and construction environments where consumer-grade devices may be vulnerable to weather, dirt, or accidental drops.

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9,000 mAh Battery

Both variants use a built-in 9,000 mAh lithium-ion battery.

LT800

CHCNAV specifies up to 10 hours of continuous operation under its test conditions.

LT800H

CHCNAV specifies up to 8 hours of continuous RTK operation under its test conditions.

Both support approximately 4-hour charging and QC 3.0 fast charging.

The difference in runtime reflects the additional power requirements of the LT800H's survey-grade multi-frequency GNSS engine.

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Which Model Should You Choose?

Choose the LT800 if:

• You primarily need a rugged Android data collector
• You will connect to an external GNSS receiver
• You do not require centimeter-level positioning from the tablet itself
• You want longer battery life
• Your work involves CAD, stakeout, maps, field forms, or LandStar data collection

Choose the LT800H if:

• You need integrated centimeter-level RTK
• You perform precision GIS or mapping directly with the tablet
• You want a tablet and survey-grade GNSS receiver combined into one device
• You require multi-frequency GNSS
• You need PPK or PPP positioning capability
• High-accuracy asset mapping or construction data collection is required

For conventional land surveying with a dedicated pole-mounted GNSS receiver, either tablet can serve as the controller. The LT800H's main advantage is its own integrated 1408-channel RTK GNSS engine.

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Ideal Applications

The CHCNAV LT800 and LT800H are well suited for:

• GNSS surveying
• Construction layout
• RTK field data collection
• GIS data collection
• Asset mapping
• Utility mapping
• Environmental surveys
• Topographic mapping
• Land parcel surveys
• Pre-construction surveys
• CAD-based stakeout
• Field inspection
• Road and infrastructure projects
• Landscaping
• Archaeological mapping
• Field documentation
• LandStar data collection

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Technical Specifications

 

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Rugged Android Tablets for CHCNAV Survey Workflows

The CHCNAV LT800 and LT800H combine the portability of an Android tablet with the durability and connectivity required for professional field work. Both provide a large sunlight-readable display, powerful processing hardware, LandStar compatibility, 4G connectivity, and an IP67 field-ready design.

For crews using a dedicated CHCNAV GNSS rover, the LT800 provides a capable large-screen field controller. For applications that benefit from positioning directly from the tablet, the LT800H adds a 1408-channel multi-frequency GNSS engine with centimeter-level RTK capability, creating an integrated high-precision mapping and data collection platform.