Spherefix SP30 RTK GNSS Rover Set with Laser and AR

A Complete RTK GNSS Rover Set for Professional Fieldwork

The Spherefix SP30 Rover Set brings together the SP30 multifunctional GNSS receiver and the C100T rugged field controller in one mobile surveying system. It is designed for land surveyors, construction crews, civil engineers, GIS professionals, utility teams and drone operators who need accurate positioning for measurement, mapping and stakeout work.

The set can connect to an NTRIP or regional RTK correction network through mobile data. It can also receive corrections from a compatible local GNSS base station. This makes it suitable for both everyday network-rover work and projects where a company already operates its own base and rover equipment.

Centimetre-Level RTK Positioning

The SP30 uses a 1,408-channel, multi-frequency GNSS board to track signals from GPS, GLONASS, BeiDou, Galileo, QZSS, SBAS and NavIC. Tracking several constellations and frequencies gives the receiver more satellite observations to work with as site conditions change.

The stated RTK accuracy is ±(8 mm + 1 ppm) horizontally and ±(15 mm + 1 ppm) vertically. This level of positioning is suited to construction layout, topographic surveys, utility mapping, as-built checks, asset collection and ground-control measurement when suitable corrections and good field procedures are used.

Buildings, trees, machinery and other obstacles can still block or reflect satellite signals. Multi-constellation tracking does not remove these limitations, but it helps the receiver maintain better satellite availability than a system using fewer signals.

Measure Efficiently with a Tilted Pole

The integrated IMU compensates for pole tilt over a range of up to 60°. This allows the operator to record a point without stopping to level the pole bubble precisely for every observation.

Tilt surveying is useful along walls, beside kerbs, around parked equipment, beneath vegetation and near site obstacles. It can shorten repetitive measurement work and makes it easier to place the pole tip on the required point while holding the controller in a comfortable viewing position.

The manufacturer specifies positioning accuracy of less than 2 cm within the supported tilt range under suitable conditions. Correct pole height, calibration and stable RTK corrections remain important for dependable results.

Laser Measurement for Inaccessible Points

The SP30 includes a camera-assisted laser-surveying function for features that cannot be occupied conveniently with the pole tip. The operator can aim at the required location and collect the point remotely instead of standing directly on it.

This can help when measuring building façades, points behind barriers, trench edges, corners, raised features or locations near moving traffic and equipment. The stated three-dimensional laser-surveying error is no more than 2.5 cm within a distance of 5 metres, subject to the measurement setup and operating conditions.

The laser is a practical extension to RTK fieldwork rather than a replacement for every conventional survey method. Operators should select the appropriate method according to the required accuracy, surface visibility, working distance and site-safety requirements.

AR Guidance for Faster Stakeout

An integrated wide-angle camera supports augmented-reality stakeout. Guidance towards the design point is displayed against the live view of the site, helping the operator understand which direction to walk and where the point is located in the real environment.

This visual workflow is particularly useful on open sites, busy construction areas and projects with many closely spaced points. It can reduce confusion compared with working from directional values alone and helps construction workers or less frequent GNSS users follow the stakeout process more naturally.

Rugged C100T Field Controller

The included C100T control terminal provides the interface for survey software, project files, coding, coordinate entry and point collection. Its 5.45-inch sunlight-readable touchscreen is designed to remain visible during outdoor work, while the physical keypad gives operators another way to control common functions.

An eight-core processor and Android operating system support compatible surveying applications. The controller also provides 4G, Wi-Fi and Bluetooth connectivity for correction services, communication with the receiver and transfer of field data.

The C100T is designed for demanding outdoor use and carries an IP68 protection rating. Its high-capacity battery is specified for up to 18 hours of operation, helping teams complete a normal field day without regularly stopping to charge the controller.

Flexible Correction Links and Data Communication

The SP30 includes a 4G modem for mobile RTK and NTRIP services. This allows the rover to receive corrections through a SIM connection wherever a compatible service and sufficient network coverage are available.

An integrated 410–470 MHz UHF radio supports use with compatible base-station transmissions. Adjustable radio power gives teams flexibility when configuring local base and rover work, although achievable radio range depends heavily on terrain, antenna height, interference, regional regulations and the selected equipment settings.

Bluetooth and Wi-Fi provide additional links for the field controller, receiver configuration and data exchange. These options allow the set to fit different field-software and correction workflows instead of limiting the user to one communication method.

Suitable Applications

• Construction point, line and surface stakeout
• Topographic and engineering surveys
• Roadworks, earthworks and infrastructure projects
• Utility and underground-asset mapping
• GIS asset collection and inspection
• As-built measurement and site verification
• Ground-control points for drone surveys
• Remote measurement of obstructed or inaccessible features

Who Uses the Spherefix SP30 Rover Set

Surveyors can use the SP30 for detailed measurement and stakeout while switching between conventional, tilted and laser-assisted observations. Construction teams benefit from visual stakeout guidance when transferring design coordinates to the site. Engineers can record as-built positions and verify completed work, while GIS and utility teams can capture accurate asset locations with descriptive field data.

Drone operators can use the rover to measure ground-control and checkpoints for photogrammetry projects. The combination of an RTK receiver and dedicated controller is also useful for organisations that need a self-contained professional system rather than relying on a personal smartphone for daily fieldwork.

Choosing Your Rover Configuration

The Spherefix SP30 Rover Set requires a suitable source of RTK corrections to achieve centimetre-level positioning. This may be an NTRIP network, a regional correction service or a compatible local GNSS base station. Survey software, coordinate systems, radio settings and available mobile-network bands should also be checked before deployment.

Global GPS Systems can help buyers match the SP30 Rover Set to their RTK service, preferred field software, existing GNSS equipment and regional communication requirements. This is especially useful when integrating the rover into an established surveying workflow or selecting a system for a team using GNSS for the first time.