Email Us: [javascript protected email address] Toll Free: 1-866-642-1880

Stonex S990A GNSS Receiver


The Stonex S980A GNSS receiver has reached End of Life (EOL). Stonex recommends the Stonex S990+ GNSS RTK rover as a suitable replacement.



The Stonex S990A GNSS receiver, with an integrated Hemisphere GNSS Phantom 40 GNSS board, has 800 channels and tracks all the present constellations and satellite signals (GPS, GLONASS, BeiDou, Galileo, QZSS & IRNSS). All GNSS signals are included at no additional cost.

The S990A features a new IMU system which allows tilted measurement (TILT) up to 60° for quick initialization, fast surveying and precise accuracy.

The S990A GNSS receiver is equipped with a number connectivity options: Bluetooth, Wi-Fi, UHF radio and 4G modem. The powerful internal battery has a working life of up to 10 hours and can be recharged via a type-c connector.

The color touch display and the WebUI are an easy and fast way to have the complete control of the receiver.

Thanks to aRTK function and Atlas correction service, Stonex S990A is also able to work in particularly difficult areas. Atlas delivers world-wide centimeter-level correction data through L-band communication satellites.

1PPS can be applied to scenarios that require precise synchronization time to ensure that multiple facilities work together or that use the same parameters for system integration based on precise time.


  • 800-channel GNSS board capable of supporting multiple satellite constellations
  • Supports PPP service with L-band correction
  • aRTK functionality
  • Integrated UHF double frequency radio, 410-470 MHz and 902.4-928 MHz
  • 4G LTE and Bluetooth / WLAN datalink support
  • Touch colour display
  • Integrates E-Bubble sensor
  • New IMU System that allows tilted measurements
  • Rugged magnesium housing
  • 1PPS port
  • Easy configuration from Web UI

Technical Specifications

Board: Hemisphere GNSS Phantom 40
Channels: 800
GPS: L1C/A, L1C, L1P, L2C, L2P, L5
Galileo: E1, E5a, E5b, ALTBOC, E6
BeiDou: B1, B2, B3, ACEBOC
QZSS: L1 C/A, L1C, L2C, L5, L6
L-Band: Atlas
SBAS: L1, L5
Update Rate: 10 Hz
20 Hz (optional)
50 Hz (optional)
Operating System: Linux
Memory: 32 GB
Static Survey: 2.5 mm + 0.1 ppm RMS (Horizontal)
3.5 mm + 0.4 ppm RMS (Vertical)
RTK (< 30 Km): 5 mm + 0.5 ppm RMS (Horizontal)
10 mm + 0.5 ppm RMS (Vertical)
Code Differential: 0.40 m RMS
SBAS Accuracy: 0.60 m
Internal UHF Radio
Model: TRM 121
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: Φ151mm x 94.5mm
Weight: 1.40 Kg
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: MIL-STD 810H
Power Supply
Battery: Rechargeable 7.2 V – 10.200 mAh
Voltage: 9 to 28 V DC external power input with over-voltage protection (5 pins Lemo)
Working Time: Up to 10 hours
Charge Time: Typically 4 hours



  • B10+150205 – S990A GNSS, 800Ch, 4G, WiFi, BT, IMU – Bundle
  • 40-450192 – S990A UHF firmware activation
  • 40-450193 – S990A 20 Hz firmware activation
  • 40-450194 – S990A 50 Hz firmware activation


The S990A 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.

Testimonial Icon

Client Testimonials

This page is having a slideshow that uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser.

"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

Testimonial Icon

Copyright , TERRISGPS, All rights reserved, Privacy Policy, Terms