Alpha 40 Rover Set RTK GNSS Receiver with Laser IMU and AR

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The Alpha 40 Rover Set is a complete RTK GNSS rover package for surveyors, construction crews, engineers, GIS teams and drone mapping professionals who need accurate positioning in real field conditions. The set combines the Alpha 40 optic-electric GNSS receiver, Alpha Controller and DiMap Pro field software for point measurement, stakeout, CAD mapping, road work, earthworks and everyday site data collection.

With 1408 GNSS channels, 60° IMU tilt compensation, laser measurement and dual AR stakeout, the Alpha 40 helps users measure faster around obstacles, hidden points, walls, road edges and busy construction areas where placing the pole perfectly upright is not always practical.

Alpha 40 Rover Set Highlights

Receiver Type Optic-electric RTK GNSS rover set
GNSS Channels 1408 channels with GPS, BDS, GLONASS, Galileo, QZSS, SBAS and NavIC
RTK Accuracy Horizontal ±(8 + 1×10⁻⁶D) mm, vertical ±(15 + 1×10⁻⁶D) mm
IMU Tilt Compensation 0–60° tilt range with 200 Hz update rate
Laser Measurement 50 m range with ±1 mm laser accuracy
Stakeout Guidance Dual AR stakeout with visual field guidance
Connectivity 4G, WiFi, Bluetooth 5.2, Type-C and built-in 2 W UHF radio
Field Software DiMap Pro surveying software included

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GPS & GNSS

Alpha 40 GNSS RTK

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Buyer protection and warranty included
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4.73 store rating (567 reviews) | 4.68 product rating

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Description

Alpha 40 Rover Set RTK GNSS Receiver with Laser IMU and AR Product Review

Alpha 40 Rover Set Product Review

The Alpha 40 Rover Set is a professional RTK GNSS rover package built for accurate field measurement, construction layout, engineering surveys, GIS data collection and drone mapping support. It combines the Alpha 40 optic-electric GNSS receiver with the Alpha Controller and DiMap Pro field software, giving field crews a complete rover workflow for measuring, staking out, managing CAD data and working with RTK correction services.

This rover set is designed for users who need more than a standard GNSS receiver. The Alpha 40 brings together satellite positioning, IMU tilt compensation, laser measurement, optical calibration and AR-assisted stakeout. In practice, this helps when points are difficult to reach, when a corner is hidden near a wall or fence, or when a construction team needs clear visual guidance during layout work.

Built for practical RTK fieldwork

Surveyors and site teams often work around buildings, road edges, kerbs, excavations, vegetation, machinery and other obstacles. In these situations, placing the pole directly and perfectly over every point is not always realistic. The Alpha 40 Rover Set helps reduce those limitations by combining RTK positioning with tilt compensation and laser-assisted measurement.

For topographic surveys, as-built checks, utility mapping, cadastral detail points and construction control, this means users can keep working efficiently without constantly repositioning the pole or forcing awkward measuring positions. It is especially useful for busy sites where speed, safety and repeatable accuracy all matter.

Laser measurement for hard-to-reach points

The Alpha 40 includes laser measurement with a 50 m range and ±1 mm laser accuracy. This gives field crews a practical way to measure points that are difficult, unsafe or inconvenient to reach directly with a survey pole.

Typical examples include building corners, drainage structures, points behind fences, road features, underpasses, slope edges, water edges and other locations where direct pole placement is difficult. By combining laser measurement with RTK positioning and inertial measurement, the Alpha 40 helps users capture these points more efficiently while staying in a workable position.

60° IMU tilt compensation

The Alpha 40 supports IMU tilt compensation from 0° to 60°. For day-to-day fieldwork, this means the operator does not always need to hold the pole perfectly vertical for every observation. This can save time during detail surveys, road measurements, construction checks, boundary work and utility surveys.

Tilt compensation is especially useful when working close to walls, parked vehicles, trenches, site barriers, traffic or dense vegetation. Instead of stopping to level the pole at every difficult point, the user can measure with a tilted pole while keeping the workflow moving.

Dual AR stakeout for easier layout

The Alpha 40 supports dual AR stakeout guidance, helping the user find target points with visual guidance in the real work environment. This is useful for construction layout, road stakeout, point stakeout and design checks where users need to understand not only the distance and direction to a point, but also where that point sits in relation to the site around them.

For less experienced GNSS users, AR guidance can make stakeout easier to understand than working only with numbers and arrows. For experienced surveyors, it can speed up point finding on busy or complex projects.

DiMap Pro field software included

The Alpha 40 Rover Set includes DiMap Pro, a professional field surveying application for GNSS workflows. It supports common site tasks such as point measurement, detail survey, control point measurement, point stakeout, CAD mapping, CAD stakeout, road design stakeout, earthwork measurement and elevation site control.

For construction and engineering work, CAD mapping and CAD stakeout are especially useful because design information can be taken into the field and used directly on the controller. This helps teams compare planned positions with actual site conditions and reduces the need to work from paper drawings alone.

DiMap Pro also includes practical calculation and field tools for area, volume, coordinate work and site measurement. This makes the Alpha 40 Rover Set suitable for surveyors, construction workers, GIS users, drone pilots and infrastructure teams who want one connected GNSS workflow in the field.

Alpha Controller for outdoor work

The included Alpha Controller is built for field use. It has a 5.5-inch screen, 8-core processor, 4 GB RAM, 64 GB storage, IP67 protection, 10-point touch support, rainy mode and glove mode. This makes it more suitable for surveying and construction environments than a standard consumer phone or tablet.

The controller runs DiMap Pro and connects the receiver, coordinate system settings, RTK correction workflow and field data in one system. For teams moving from a basic GNSS setup to a professional rover set, this helps keep the hardware and software workflow simple and practical.

Communication and correction options

The Alpha 40 supports several communication options for RTK work, including 4G, WiFi, Bluetooth 5.2, Type-C and a built-in UHF radio transceiver. The 2 W UHF radio supports the 410–470 MHz frequency range and common RTK radio protocols, giving users flexibility for both network RTK and radio-based base-rover workflows.

This makes the rover set suitable for projects using NTRIP correction services, a local base station or mixed communication setups depending on the jobsite. For international buyers and teams working across different project types, this flexibility helps keep the system adaptable.

Applications

The Alpha 40 Rover Set is suitable for a wide range of professional GNSS applications, including topographic surveying, construction layout, road stakeout, cadastral and boundary work, GIS data collection, utility mapping, drone ground control, earthwork measurement, volume calculation, photovoltaic layout, electric line survey and tower stakeout.

It is a strong option for users who want a complete rover package instead of buying a receiver, controller, software and accessories separately. The combination of RTK GNSS, laser measurement, IMU tilt and AR stakeout makes it useful for both standard surveying tasks and more complex field situations.

What is included in the Alpha 40 Rover Set?

  • Alpha 40 GNSS receiver
  • Radio antenna
  • Host adapter and host cable
  • Alpha Controller
  • Controller adapter and controller cable
  • Centering pole
  • Bracket
  • Instruction documentation
  • Carrying case

Why buy from Global GPS Systems?

When you buy the Alpha 40 Rover Set from Global GPS Systems, you are buying from a specialist supplier that works with GNSS receivers, RTK correction workflows, field software and survey equipment every day. Our team can help you compare rover setups, understand correction options and choose the right configuration for your type of work.

Global GPS Systems supports customers worldwide with insured shipping from the Netherlands, warranty handling and practical product advice. For surveyors, construction companies, GIS teams and drone mapping professionals, that support can be just as important as the hardware itself.

Datasheets & Manuals

Datasheets and manuals

Specifications

Alpha 40 Rover Set Specifications

Product Overview

Product Name Alpha 40 Rover Set
Receiver Type Optic-electric RTK GNSS rover
System Type Complete RTK GNSS rover set
Primary Applications Surveying, construction layout, engineering, GIS data collection, drone mapping, CAD mapping, road work, earthwork measurement and stakeout
Included Field Software DiMap Pro
Key Functions RTK positioning, static measurement, IMU tilt measurement, laser measurement, optical calibration, dual AR stakeout, CAD mapping and GNSS data collection
Available Version Types Laser with one-camera; laser with dual-camera

GNSS Performance

GNSS Channels 1408
GPS Signals L1C/A, L1C, L2C, L2P, L5
BDS Signals B1I, B2I, B3I, B1C, B2a, B2b
GLONASS Signals G1, G2, G3
Galileo Signals E1, E5a, E5b, E6
QZSS Signals L1C/A, L1C, L2C, L5
SBAS Signal L1
NavIC Signal L5
Static Accuracy – Horizontal ±(2.5 + 0.5 × 10-6D) mm
Static Accuracy – Vertical ±(5 + 0.5 × 10-6D) mm
RTK Accuracy – Horizontal ±(8 + 1 × 10-6D) mm
RTK Accuracy – Vertical ±(15 + 1 × 10-6D) mm
Update Rate 200 Hz

Tilt Compensation and Inertial Navigation

Tilt Compensation Range 0° to 60°
Tilt Compensation Accuracy ±(8 + 0.3 × TILT) mm
Inertial Navigation Accuracy 0.015°
IMU Type Military-grade professional IMU / inertial navigation module
Tilt Initialization No formal initialization required; enter inertial navigation mode after walking a few steps
High-Inclination Measurement Supports measurement at extreme inclination angles using fused IMU, positioning and magnetometer data
Temperature Compensation Supported

Laser Measurement and Optical System

Laser Measurement Range 50 m
Laser Accuracy ±1 mm
Non-Contact Measurement 360° non-contact measurement supported
Non-Contact Measurement Accuracy 3–5 cm at 10 m distance
Optical Calibration Synchronizes the crosshair aiming point with the actual laser measurement target
Laser Measurement Use Cases Hidden cadastral points, aerial points, underground points and inaccessible points
Laser / RTK Fusion Laser ranging, RTK positioning, IMU and optical calibration data are algorithmically fused for indirect point measurement

AR Stakeout and Camera Functions

AR Stakeout Dual AR-guided stakeout
Remote AR Stakeout Supported
Proximal AR Stakeout Supported
AR View Switching Switches to near-view AR at approximately 5 m; distance is adjustable
AR Display 360° real-time real-scene display designed for outdoor visibility
Real-Scene Point Finding Accuracy 1 cm
Lens System Image-level lens with small optical distortion and professional correction algorithms

System Parameters

Operating System Linux
Internal Memory 32 GB
Data Recording Formats DAT, RINEX
Voice Support Intelligent voice supported
Satellite / Datalink Indicators Satellite, datalink, Bluetooth and battery indicator lights
WebUI Supported
PPP Supported

Communications and Connectivity

Mobile Network 4G
Wi-Fi 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.2 BR/EDR + LE dual-mode Bluetooth
Type-C Port Charging, data transmission and external port connection
SMA Port Radio UHF antenna connection
4G Card Slot Supported
External Port Support Supports external connection workflows through Type-C and serial/port customization functions

UHF Radio

Radio Type Built-in dual-mode radio transceiver with UHF and LoRa support
Radio Power 2 W
Frequency Range 410–470 MHz
Operation Mode Transceiver
Supported Protocols TRIMTALK 450S, TRIMMARK III, SOUTH9600, SOUTH19200, SATEL9600, SATEL19200, TRANSPARENT, LoRa
Typical Radio Range Up to 5 km in suitable open conditions with the base station placed in a high, open area
External Radio Support Serial port enables connectivity with external high-power radios

Power

Power Input 9–20 V Power Delivery
Battery Capacity 37 Wh
Working Time – NTRIP Up to 18 hours
Working Time – Radio Receiving Up to 15 hours
Working Time – Radio Transmitting Up to 8 hours
Charging Interface Type-C

Alpha Controller

Display 5.5-inch large screen
Processor 8-core
Memory / Storage 4 GB RAM + 64 GB storage
Protection Rating IP67
Touch Input 10-point touch
Rain Mode Supported
Glove Mode Supported

DiMap Pro Field Software

Point Measurement Supported
Detail Measurement Supported
Control Point Measurement Supported
Point Stakeout Supported
CAD Mapping Supported
Road Design Stakeout Supported
Power Survey Supported
Elevation Site Control Supported
Line Measurement Supported
Surface Measurement Supported
Curve Stakeout Supported
Tower Base Stakeout Supported
Photovoltaic Stakeout Supported
Earthwork Measurement Supported
Large CAD File Support Smooth opening and running of files over 100 MB
Map Support Amap standard map, Amap satellite map, OpenStreetMap and WMS map configuration
Map Calibration Supported
Cloud / File Sharing Supported
Shortcut Key Customization Supported
Post-Measurement Correction Supported
Built-In Calculator Supported

Drone and External System Support

Drone Base Station Function Supported
Serial Port Customization Supported
Unmanned System Integration Supports positioning fusion for unmanned systems and laser radar workflows
Intelligent Terminal Collaboration Designed to work with smart terminals, optoelectronic products and unmanned systems

Physical Specifications

Receiver Dimensions 100 mm × 100 mm × 80 mm, excluding 5/8-inch pin interface
Receiver Weight 650 g
Housing Aluminum-magnesium alloy housing with shielding middle frame
Antenna Cover Nano wave-transparent cover
Pole 1.8 m lightweight carbon fiber portable pole
Pole Retracted Length 75 cm
Mounting Interface 5/8-inch pin interface

Environmental Specifications

Operating Temperature -30°C to +70°C
Storage Temperature -40°C to +80°C
Water / Dust Protection IP67
Shock Resistance Normal temperature resistance of 1.8 m drop onto hard ground
Humidity Up to 100%

Package Contents

Item Quantity Notes
Alpha 40 GNSS Receiver 1 Optic-electric RTK GNSS receiver
Radio Antenna 1 For UHF radio operation
Host Adapter 1 Receiver power/accessory adapter
Host Cable 1 Receiver cable
Controller 1 Alpha Controller
Controller Adapter 1 Controller charging/accessory adapter
Controller Cable 1 Controller cable
Centering Pole 1 1.8 m lightweight carbon fiber portable pole
Bracket 1 Controller/field bracket
Instruction 1 Product documentation
Carrying Case 1 Transport and storage case

Specifications and package contents may vary by configuration, region or manufacturer update. Always check the current configuration before ordering.

FAQ

Alpha 40 Rover Set FAQ

Product Overview

What is the Alpha 40 Rover Set?

The Alpha 40 Rover Set is a complete RTK GNSS rover package for high-accuracy field positioning. It combines the Alpha 40 optic-electric GNSS receiver, Alpha Controller and DiMap Pro field software for surveying, stakeout, CAD mapping, construction layout, GIS data collection and engineering workflows.

Who is the Alpha 40 Rover Set designed for?

The Alpha 40 Rover Set is designed for professional surveyors, construction teams, civil engineers, GIS users, drone mapping professionals, utility mapping teams, cadastral surveyors and infrastructure crews that need centimetre-level positioning in the field.

What is included in the Alpha 40 Rover Set?

The set includes the Alpha 40 receiver, radio antenna, host adapter, host cable, controller, controller adapter, controller cable, centering pole, bracket, instruction documentation and carrying case.

What is the difference between the Alpha 40 Rover Set and the receiver only?

The receiver-only option includes the Alpha 40 GNSS receiver, while the Rover Set is a more complete field package with the receiver, controller, DiMap Pro software, pole, bracket, cables, radio antenna and carrying case.

What is the difference between a Rover Set and a Rover & Base Set?

A Rover Set is intended for use as a mobile GNSS rover, often with NTRIP or an existing correction source. A Rover & Base Set includes equipment for both rover and base workflows, which is useful when you need to create your own local RTK correction setup.

Which industries use the Alpha 40 Rover Set?

The Alpha 40 Rover Set is used in land surveying, construction, civil engineering, road work, cadastral mapping, GIS data collection, utility mapping, drone mapping, earthworks, photovoltaic layout and infrastructure projects.

Accuracy, GNSS and RTK Corrections

Does the Alpha 40 support RTK positioning?

Yes. The Alpha 40 supports RTK positioning with a specified horizontal RTK accuracy of ±(8 + 1×10⁻⁶D) mm and vertical RTK accuracy of ±(15 + 1×10⁻⁶D) mm.

How many GNSS channels does the Alpha 40 have?

The Alpha 40 has 1408 GNSS channels, allowing it to track multiple satellite constellations and frequencies for professional positioning workflows.

Which satellite systems does the Alpha 40 track?

The Alpha 40 tracks GPS, BeiDou, GLONASS, Galileo, QZSS, SBAS and NavIC signals. This multi-constellation support helps improve positioning availability in different field environments.

Can the Alpha 40 be used with NTRIP corrections?

Yes. The Alpha 40 includes onboard 4G connectivity, making it suitable for NTRIP correction workflows where mobile network coverage and a compatible RTK correction service are available.

Does the Alpha 40 have a built-in UHF radio?

Yes. The Alpha 40 includes a built-in 2 W UHF radio transceiver covering 410–470 MHz. It supports multiple protocols, including TRIMTALK 450S, TRIMMARK III, SOUTH9600, SOUTH19200, SATEL9600, SATEL19200, TRANSPARENT and LoRa.

Can the Alpha 40 work without mobile network coverage?

Yes, the built-in UHF radio can support radio-based RTK workflows when a compatible base station and radio setup are available. This is useful on sites where mobile coverage for NTRIP is limited or unavailable.

Laser, IMU and AR Stakeout

What is the laser measurement function used for?

The laser measurement function helps measure points that are difficult, unsafe or inconvenient to reach directly with the survey pole. It is useful near walls, fences, ditches, obstacles, traffic, excavations, drainage structures and hidden corners.

What is the laser measurement range of the Alpha 40?

The Alpha 40 has a specified laser measurement range of 50 m and a specified laser accuracy of ±1 mm.

Can the Alpha 40 measure inaccessible points?

Yes. The Alpha 40 combines GNSS positioning, laser measurement, optical calibration and IMU tilt compensation to support non-contact measurement of hard-to-reach or inaccessible points.

Does the Alpha 40 support IMU tilt compensation?

Yes. The Alpha 40 supports IMU tilt compensation from 0° to 60°, helping users measure points faster when the pole cannot be held perfectly vertical.

How accurate is the tilt compensation?

The specified tilt compensation accuracy is ±(8 + 0.3 × tilt) mm, with a 200 Hz update rate. This supports efficient field measurement around obstacles, uneven terrain and busy construction sites.

What is dual AR stakeout?

Dual AR stakeout uses real-world visual guidance to help operators find and stake out target points more intuitively. It can make construction layout and point finding easier because the target position is shown in relation to the real surroundings.

Software, Field Use and Durability

Which software is included with the Alpha 40 Rover Set?

The Alpha 40 Rover Set includes DiMap Pro field surveying software. DiMap Pro supports project setup, coordinate systems, localization, point management, import and export, field measurement, stakeout and calculation tools.

What survey functions does DiMap Pro support?

DiMap Pro supports point survey, detail survey, control point survey, point stakeout, CAD mapping, CAD stakeout, line stakeout, road stakeout, DSM stakeout, electric line survey, electric tower stakeout and practical calculation tools.

Can the Alpha 40 Rover Set be used for CAD mapping and CAD stakeout?

Yes. DiMap Pro supports CAD mapping and CAD stakeout, including layer-based workflows and field drawing functions. This helps users bring design data into the field for layout and verification tasks.

Is the Alpha Controller suitable for outdoor work?

Yes. The Alpha Controller has a 5.5-inch screen, 8-core processor, 4 GB RAM, 64 GB storage, IP67 protection, 10-point touch support, rainy mode and glove mode for demanding field environments.

Is the Alpha 40 waterproof and dustproof?

Yes. The Alpha 40 receiver has an IP67 water and dust protection rating, making it suitable for professional outdoor use in challenging field conditions.

What battery life does the Alpha 40 offer?

The Alpha 40 has a 37 Wh battery. The specified working time is up to 18 hours with NTRIP, 15 hours with radio receiving and 8 hours with radio transmitting.

Can the Alpha 40 Rover Set be used for drone mapping support?

Yes. The Alpha 40 Rover Set can be used for drone mapping support, including ground control point measurement and high-accuracy field positioning workflows for UAV mapping projects.

Additional information
GNSS feature

GNSS with Camera, GNSS with IMU, GNSS with Laser

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💬
Need a tailored quote?
Get personal pricing and advice from one of our product specialists.
Why choose Global GPS Systems?
European support & worldwide delivery
Worldwide shipping from the Netherlands
100% insured shipping against loss or damage
Import, export, tax and duties support
Expert support from product specialists
Buyer protection and warranty included
Speak with a specialist +31 035 205 7939
Global GPS Systems
Independently verified
4.73 store rating (567 reviews) | 4.68 product rating
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567 reviews