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Stonex S900ANew GNSS Receiver

The Stonex S900ANew is a compact, high-performance GNSS receiver with 800 channels that incorporates the Hemisphere P20 board and supports GPS, GLONASS, BeiDou, Galileo, QZSS, IRNSS and L-Band corrections.



The Stonex S900ANew GNSS receiver is equipped with a high performance GNSS board with 800 channels that is capable of supporting multiple satellite constellations: GPS, GLONASS, BeiDou, Galileo, QZSS and IRNSS, as well as L-Band corrections.

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 radio with selectable frequencies, make S900ANew the perfect system for a GNSS Base + Rover.

The S900ANew can receive Atlas, the GNSS Global Correction Service for precise positioning around the world. Atlas is an exclusive PPP technology that provides real-time, centimeter-level positions.

The S900ANew has a new integrated UHF dual-frequency radio and integrated E-Bubble sensor that allows measurement of difficult points when the pole is not level. It also has as optional IMU feature that allows tilted measurement (TILT) making every measurement faster and more precise.


  • 800 channels GNSS board capable of supporting multiple satellite constellations
  • Support PPP service with L-band corrections
  • aRTK functionality
  • Integrated UHF double frequency radio, 410-470MHz and 902.4-928MHz
  • 4G LTE and Bluetooth / WLAN datalink support
  • Integrates E-Bubble sensor
  • New IMU System that allows tilted measurement
  • Rugged magnesium housing
  • 2 rechargeable and replaceable intelligent lithium batteries (hot swap) capable of up to 12 hours operation
  • Easy configuration from Web UI

Technical Specifications

Board: Hemisphere P20
Channels: 800
GPS: L1 C/A, L1C, L1P, L2C, L2P, L5
GLONASS: L1 C/A, L1P, L2 C/A, L2P, L3
Galileo: E1, E5a, E5b, ALTBOC, E6
BeiDou: B1, B2, B3, ACEBOC
QZSS: L1 C/A, L1C, L2C, L5, L6
SBAS: L1, L5
Update Rate: 5Hz
20Hz (optional)
50Hz (optional)
Operating System: Linux
Memory: 8 GB
Static Survey: 2.5 mm + 0.1 ppm RMS (Horizontal)
3.5 mm + 0.4 ppm RMS (Vertical)
RTK (< 30 Km): 5 mm + 1 ppm RMS (Horizontal)
10 mm + 1 ppm RMS (Vertical)
Code Differential: 0.25 m (Horizontal)
0.45 m (Vertical)
SBAS Accuracy: 0.30 m (Horizontal)
0.60 m (Vertical)
Internal UHF Radio
Model: TRM121
Type: Tx – Rx
Frequency Range: 410 – 470 MHz
902.4 – 928 MHz
Channel Spacing: 12.5 KHz / 25 KHz
Transmission Power: 1 watt
Maximum Range: 3-4 Km in urban environment
Up to 10 Km with optimal conditions
Size: Φ 157 mm x 76 mm
Weight: 1.19 kg (with one battery)
1.30 Kg ( with two batteries)
Operating Temperature: -40 °C to +65 °C
Storage Temperature: -40 °C to +80 °C
Waterproof/Dustproof: IP67
Shock Resistance: Designed to endure a 2 m pole drop onto a concrete floor with no damage
Vibration: Vibration resistant
Power Supply
Battery: Rechargeable 7.2 V – 6.900 mAh
Voltage: 9 to 28 V DC external power input with over-voltage protection (5 pins Lemo)
Working Time: Up to 12.5 hours (2 battery hot swap)
Charge Time: Typically 4 hours


  • B10+150204 – S900A GNSS, 800Ch, 4G, WiFi, BT, E-Bubble – Bundle
  • B10+160204 – S900A GNSS, 800Ch, 4G, WiFi, BT, E-Bubble – Bundle – Made in Italy
  • 40-450188 – S900A UHF firmware activation
  • 40-450189 – S900A IMU firmware activation
  • 40-450190 – S900A 20 Hz firmware activation
  • 40-450191 S900A 50 Hz firmware activation


The S900ANew GNSS receiver from Stonex is available through TerrisGPS. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

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Client Testimonials

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"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

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