Precision measurement, simplified.
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GNSS receivers


Navcom sf-5050

NavCom’s SF-5050 integrated StarFireTM/RTK ExtendTM Receivers provide 5cm-level position accuracy, anywhere in the world, anytime. Powered by the new Onyx GNSS Engine, the SF-5050 provides 255 channel tracking, including multi-constellation support for GPS and GLONASS. It also provides patented interference rejection and anti-jamming capabilities. Offering the “freedom to choose,” the SF-5050 is fully upgradeable allowing users to upgrade from an autonomous receiver to a variety of augmentation capabilities with just a software bundle upload. This flexible framework makes the SF-5050 ideal for any application.


  • “All-in-view” parallel tracking with 255 channels


  • Built-in 3-channel StarFire receiver and demodulator

  • GPS: L1 – CA, P1,L2 – L2CA, P2, L2CL, L5 – L5Q

  • Glonass: G1 – G1C, G2 – G2C

  • Beidou: B1 – B1l, B2 – B2I

  • Galileo: E1 – E1B, E5A – E5AQ, E5B – E5BQ

  • High sensitivity / low signal level tracking

  • Fast acquisition / re-acquisition

  • Superior interference suppression (both in-band & out-of-band)

  • Patented multipath rejection

  • StarFire Over IP delivery (Optional)

  • RTK ExtendTM

  • Over-the-air StarFireTM licensing option

  • Minimal data latency

  • Data message formats


Differential Correction: SBAS and StarFire (proprietary)

RTK Correction: RTCM 2.3, 3.0, and MSM, NavCom Proprietary UltraRTKTM

  • Configurable as RTK base or rover

  • Programmable output rates

  • Event marker input

  • 1 PPS output


  • 4 x RS232 (2 - Changeable to RS422)

  • 2 x USB 2.0 (Device)

  • Ethernet (10T/100T)

• 4 to 32GB SD Card (customer supplied)


stonex S900A

Powerful Precision with Atlas® Capability

Stonex S900A is equipped with an high performance GNSS board 394 channels and capable of supporting multiple satellite constellations: GPS, GLONASS, BEIDOU and GALILEO, including L-Band correction.

Through the 4G GSM modem a fast internet connection is guaranteed for the reception of correction data and the management of the maps in the background.

In the amazingly compact structure the Bluetooth and Wi-Fi modules allow always reliable data flow to the controller, and the integrated TX/RX UHF radiomodem with selectable frequencies, make S900A the perfect system for a GNSS Base + Rover.

Stonex S900A integrates E-Bubble sensor that allows the measurement of difficult points with the pole not levelled. It is possible to measure points with an inclination of the pole up to 30° even in harsh environments and in the presence of magnetic fields.

Thanks to measurement routine integrated into the field software, the management of tilt function is simple and intuitive.

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falcon sf

Falcon is a full featured GNSS, tracking satelites from all major positioning systems, Falcon will always produce accurate results, which can then be used by a whole host of applications. When used with a Base Station, or VRS network, Falcon SF will produce precise (1 cm + 0.5ppm) positions, and using the Starfire for Life option 5 cm accuracy can be achieved anywhere on the planet with no base station or correction signal. This is a very unique combination and makes Falcon SF perfect for remote and difficult areas. 

The Falcon SF GPS is not only accurate but its smart. The heart of Falcon is its precise GNSS Onyx™ core that gives superior results, but Falcon also has a brain, which is a built in Arm Processor running Windows 10 or Linux. This gives Falcon the ability to think for itself, to log data, run user programs, talk to the cloud, and more. 

UltraRTK™ and RTK Extend™ 

Falcon SF with UltraRTK can give excellent coverage with baselines up to 40km, and protection against communication outages of up to 15 minutes is easily handled with RTK Extend™ 


UHF, GSM, Wifi, and Bluetooth communication links with support for multiple RTK formats allows the Falcon SF rover to work with a variety of base stations and VRS RTK networks. 

Starfire for Life 

StarFire is a global satellite-based augmentation system (GSBAS) which provides five centimeter positioning accuracy on a worldwide basis. Falcon SF includes a free lifetime license for StarFire. Aside from giving excellent accuracy StarFire also makes Falcon extremely easy to use because there is no need for base stations, sim cards, or any other communications, its just press the on button and go. 

Falcon Cloud 

Everything collected by Falcon can instantly be backed up to the cloud where work can be monitored and processing can be started before the GNSS has even left the field. This connection also allows workers to share work as they are surveying and monitor work that has already been completed. 

Built in Logging 

Although Falcon can work with most industry standard data loggers and software, Falcon also has built in logging. You can log data right on the instrument without the need for a data logger. 

 Lifetime StarFire license 

• StarFire five (5) centimeter standalone accuracy worldwide 

• “All-in-view” parallel tracking 

• L1C/A, L2P, L2C, L5, G1C/A, G2P, G2 C/A, B1, B2, E1, E5A, E5B) 

• Multi-constellation support (GPS / Galileo / BeiDou / GLONASS) code and full wavelength carrier phase tracking 

• Ultra RTK (up to 40km baseline) 

• SureNav 

• RTK Extend™–Coast through base station outages 

• Operates as a base or rover 

• Patented multipath rejection 

• Fast acquisition/re-acquisition 

• High sensitivity/low signal level tracking 

• Superior interference suppression (both in-band& out-of-band)