Spherefix SP Nano Compact RTK GNSS Receiver with IMU

The SP Nano is a lightweight, professional GNSS receiver designed for centimeter-level positioning in surveying, construction, mapping and engineering workflows. It combines multi-constellation satellite tracking, RTK positioning, an integrated IMU and wireless connectivity in a compact field-ready unit.

The specified RTK accuracy is ±(8 mm + 1 ppm) horizontally and ±(15 mm + 1 ppm) vertically under suitable operating conditions. Actual accuracy can vary with satellite visibility, correction quality, baseline length, atmospheric conditions and the surrounding environment.

The receiver supports GPS, GLONASS, BeiDou, Galileo, QZSS, SBAS and NavIC. Its 1,408 tracking channels allow it to receive signals from multiple constellations and frequencies simultaneously.

Yes. The SP Nano is designed for real-time kinematic positioning and supports RTCM 3.X correction data. It can be used with a compatible GNSS base station, reference-station network or NTRIP correction service, depending on the field setup.

The receiver supports relevant PPP signals from BeiDou, Galileo and QZSS. The availability and performance of PPP positioning depend on the correction service, geographic coverage and configured workflow.

The SP Nano supports a positioning output rate of up to 5 Hz. This allows the receiver to update its calculated position several times per second for responsive field measurements.

Yes. The integrated high-precision IMU provides real-time tilt compensation, allowing measurements to be collected without keeping the survey pole perfectly vertical.

The tilt-compensation system is specified to maintain an error below 2 cm at tilt angles of up to 60 degrees under suitable operating conditions. This can make it easier to measure points beside walls, beneath obstacles or in other difficult-to-reach locations.

Tilt compensation reduces the need to level the pole precisely for every observation. Users should still follow the recommended initialization and operating procedures and confirm that the IMU is ready before recording important points.

The receiver is intended for land surveyors, construction professionals, civil engineers, GIS teams, utility surveyors, railway contractors, site supervisors and other users who require portable high-precision GNSS positioning.

Typical applications include topographic surveying, road construction, power-line surveying, water and utility data collection, GIS mapping, railway stakeout, site-leveling control, CAD layout and general construction positioning.

The multi-constellation receiver and tilt-compensated measurement system can help users work around some obstacles. However, GNSS performance may still be reduced near tall buildings, dense vegetation, reflective surfaces, bridges or other objects that block or reflect satellite signals.

Yes. The receiver supports LTE FDD, LTE TDD, WCDMA and GSM mobile network technologies. A compatible SIM card, supported frequency band and active data service may be required for network RTK or cloud-connected functions.

Yes. It supports Bluetooth BR, EDR and BLE connectivity. Bluetooth can be used to communicate with compatible field controllers, smartphones, tablets or data-collection software.

The integrated mobile connectivity allows the receiver to be used in compatible network RTK workflows, including NTRIP-based correction services. Access requires suitable software, network coverage and valid correction-service credentials.

The SP Nano supports commonly used GNSS formats and protocols, including RTCM 3.X correction data and NMEA-0183 positioning output. Compatibility should be confirmed for the specific controller, application or third-party system being used.

Integration may be possible through its standard GNSS data formats, Bluetooth connection and network functions. Users should verify supported communication settings, message formats and device compatibility before deployment.

The receiver uses a 1.8 GHz ARM Cortex-A7 processor and runs Linux. This processing platform is designed to support positioning functions and potential feature expansion.

The receiver measures approximately 60 × 41.3 × 126.3 mm, including the helical antenna, and weighs approximately 176 g. Its small size is intended for portable survey kits and extended field use.

The integrated 3.7 V, 2,500 mAh battery is specified to provide more than 12 hours of operation. Actual runtime depends on mobile network use, Bluetooth activity, temperature, signal conditions and other operating factors.

The receiver supports 5 V/2 A charging. Use a compatible power source and charging equipment that meet the manufacturer’s electrical requirements.

The SP Nano has an IP67 environmental protection rating. This means its enclosure is designed to resist dust and temporary water immersion under the conditions defined by the IP67 standard. Ports and covers must be correctly secured to maintain protection.

The specified operating temperature range is -20°C to +60°C. The specified storage temperature range is -40°C to +85°C. Battery performance and operating time may decrease in very hot or cold conditions.

The SP Nano housing is made from PC and ABS materials, providing a balance of low weight and durability for regular outdoor fieldwork.

The available product information lists a full-band helical antenna, a plumb-line thread adapter and a 5 V/2 A USB power adapter. Package contents can vary by configuration or region and should be confirmed before deployment.