Alpha 40 Rover Base Set with Laser IMU and AR Camera

Alpha 40 Rover Base Set for Professional RTK GNSS Surveying

The Alpha 40 Rover Base Set is a complete RTK GNSS solution for users who need a reliable base and rover setup in the field. Instead of working with only one receiver or depending fully on a correction network, this set gives surveyors, construction crews, engineers, GIS teams and drone pilots a complete two-receiver workflow for accurate positioning on a wide range of job sites.

One Alpha 40 receiver can be set up as the base station in a known or measured position, while the second receiver is used as the rover for measuring points, staking out designs and collecting field data. This makes the set especially useful for construction sites, remote survey areas, infrastructure projects, solar farms, road works, earthworks and drone mapping jobs where consistent RTK corrections are needed throughout the day.

Complete Rover and Base Workflow

A rover and base set is a practical choice when the job site does not have reliable mobile network coverage, when local control is required, or when the user wants to work independently from an external NTRIP correction service. The Alpha 40 base receiver sends correction data to the rover using the integrated radio system, allowing the field crew to work with a controlled local RTK setup.

For surveyors and engineers, this is useful on topographic surveys, control point work, boundary support measurements, construction layout, road projects and larger site surveys. For construction workers, it provides a straightforward way to set out points, check levels, measure site features and work from design data without needing a separate total station for every task.

Laser Measurement for Difficult and Unsafe Points

The Alpha 40 includes laser measurement for points that are difficult, unsafe or simply inconvenient to reach with a survey pole. In real fieldwork, this can include building corners, façades, fences, ditches, slopes, road edges, trenches, water edges, overhead points and hidden points where placing the pole directly on the target is not practical.

By combining GNSS positioning, inertial measurement and laser ranging, the Alpha 40 helps users measure selected offset points without always standing directly on them. This can save time on detail surveys and improve safety when working near traffic, excavations, water, obstacles or restricted areas.

IMU Tilt Compensation for Faster Measurements

The Alpha 40 supports IMU tilt compensation up to 60°. This allows the rover pole to be tilted while still recording accurate measurements within the supported range. For everyday field crews, this means less time spent carefully levelling the pole at every point and more flexibility when working close to walls, fences, machines, vehicles, trees or uneven ground.

Tilt compensation is especially useful in construction and engineering work, where the point to be measured is often close to an obstruction. It also helps less experienced users work more confidently, because the receiver is more forgiving during normal pole handling.

AR Guided Stakeout for Easier Point Finding

The Alpha 40 uses dual AR camera guidance to make stakeout work easier to understand in the field. Instead of looking only at arrows and numbers on the controller, users can see the stakeout direction and target point in a real-world camera view. This helps crews move toward the design point more naturally, especially on busy construction sites or open terrain where visual orientation can be difficult.

The system supports remote AR-guided stakeout and near-view AR-guided stakeout. This means the user can navigate toward the point from further away, then switch to closer visual guidance when approaching the final position. For road layout, solar panel layout, foundation work, utility marking and general construction setting out, this makes the workflow clearer and faster.

Multi Constellation GNSS Performance

The Alpha 40 tracks GPS, BDS, GLONASS, Galileo, QZSS, SBAS and NavIC signals with 1408 channels. In practical terms, this gives the receiver access to more satellite signals during the working day, which helps maintain reliable positioning in many survey and construction environments.

The receiver supports RTK accuracy for field measurement and can be used in base-rover mode, rover mode with correction services, and drone base station workflows. This flexibility makes the Alpha 40 Rover Base Set useful for teams that handle different project types throughout the year.

Built in UHF and LoRa Radio

The integrated 2W UHF radio supports the 410–470 MHz frequency range and LoRa communication. This allows the base station to transmit corrections to the rover without needing mobile internet on every job. The radio system supports common RTK communication protocols, which helps when working with different site setups or mixed equipment environments.

For larger or more demanding projects, the receiver also includes an external radio interface. This gives survey companies and contractors more flexibility when a specific communication range or external radio setup is required.

DiMap Pro Field Software for Survey and Construction Tasks

The Alpha 40 Rover Base Set works with DiMap Pro field software. DiMap Pro supports point measurement, detail survey, control point measurement, point stakeout, CAD mapping, road design stakeout, power survey, line measurement, surface measurement, curve stakeout, tower base stakeout, photovoltaic stakeout and earthwork measurement.

For users working from drawings, the software can handle large CAD files, multiple layers, map backgrounds, WMS map configuration, file sharing, field calculations and measurement correction tools. This is useful for surveyors, site engineers and construction layout teams who need to move between design data and field measurements during the same job.

Alpha Controller for Field Use

The set includes the Alpha Controller, designed for outdoor surveying and construction use. It has a 5.5-inch screen, 8-core processing, 4 GB RAM, 64 GB storage and IP67 protection. Rainy mode and glove mode help make the controller easier to operate in practical job site conditions.

For field teams, the controller and DiMap Pro combination keeps the workflow simple: connect the receiver, start the project, load or create the required data, measure points and stake out designs from one handheld device.

Useful for Drone Mapping and UAV Workflows

The Alpha 40 can also support drone base station workflows. For drone pilots and mapping companies, a reliable GNSS base can improve project control and help connect aerial data with accurate ground reference measurements. This is useful for photogrammetry, LiDAR support, site mapping, stockpile measurement, earthworks and engineering documentation.

Because the Alpha 40 Rover Base Set includes two receivers, one unit can be used as the base while the other remains available for ground control points, check points, site measurements or layout work.

Rugged and Portable for Daily Fieldwork

The Alpha 40 receiver is compact and lightweight, with a 100 mm × 100 mm × 80 mm body and a weight of around 650 g. The IP67-rated housing helps protect it against dust and water, while the receiver is designed for outdoor working conditions from construction sites to open survey areas.

The battery performance supports full working days depending on the selected mode, with different operating times for NTRIP, radio receiving and radio transmitting. For field crews, this helps reduce downtime and keeps the equipment practical for daily use.

Who Should Choose the Alpha 40 Rover Base Set?

The Alpha 40 Rover Base Set is suitable for professionals who want a complete RTK setup instead of a single rover. It is a strong choice for land surveyors, construction layout teams, civil engineers, road contractors, solar farm installers, utility mapping teams, GIS workers, drone mapping companies and contractors working in areas where correction network access may not always be available.

It is also useful for companies that want one flexible GNSS package for multiple workflows. The same set can support base-rover surveying, construction stakeout, CAD mapping, drone base station work, GIS data collection and general site measurement.

Buying from Global GPS Systems

Global GPS Systems supplies professional GNSS, surveying and construction measurement equipment for users who need practical advice and reliable support. When buying the Alpha 40 Rover Base Set from Global GPS Systems, customers can get help selecting the right configuration for their workflow, including rover and base setup, controller use, radio setup, correction service compatibility, drone base station use and field software requirements.