S990+ GNSS Receiver
Stonex
GNSS Positioning

S990+ GNSS Receiver

High Performance with IMU

The Stonex S990+ is a 1408-channel GNSS receiver that features characteristics that improve survey performance in the field. The S990+ receiver is equipped with all major connectivity features, including Bluetooth, Wi-Fi, UHF radio, and a 4G modem. The internal 10,200mAh battery allows for up to 12 hours of operation and can be recharged via a USB Type-C connector. The IMU system supports tilted measurement (TILT) with quick initialization, enabling the operator to obtain fast and accurate surveys. The color touch display and Web UI provide a quick and easy way to get complete control of the receiver. The 1PPS port is an additional advantage available on this GNSS receiver because it can be applied to scenarios that require precise timing to ensure that multiple facilities work together or to scenarios that use the same parameters for the integration of systems based on precise timing. What are the performances of the S990+ with IMU? • No problem of electromagnetic disturbances • Fast initialization • Up to 60° inclination • 2 cm accuracy 30° • 5 cm accuracy 60° • Fast and precise survey Stonex S990+ with IMU system makes every measurement reliable, in both survey and stakeout jobs, and makes the acquisition of points extremely faster, up to 40% of the field work time can be saved!

Key Performance & Features

Advanced Capabilities

1

MULTI CONSTELLATION

The Stonex S990+ is a 1408-channel GNSS receiver that provides an excellent on-board real-time navigation solution with high accuracy. All GNSS signals, including GPS, GLONASS, BEIDOU, GALILEO, and QZSS, are included at no additional cost.

2

IMU TECHNOLOGY

The Stonex S990+ is equipped with IMU technology that allows for fast initialization and accurate measurements with an inclination up to 60°.

3

DOUBLE FREQUENCY RADIO (optional)

The Stonex S990+ is equipped with an integrated UHF double frequency radio that supports 410-470MHz and 902.4-928MHz, meeting the needs of each country.

4

4G MODEM

The Stonex S990+ is equipped with an internal 4G modem that operates with all world signals, ensuring a fast internet connection.

5

COLOR TOUCH DISPLAY

The Stonex S990+ is equipped with a color touch display that makes it easy to manage the most important functions.

Technical Specifications

RECEIVER

Signal Tracking
GPS: L1 C/A, L1C, L2P, L2C, L5GLONASS: L1, L2, L3¹BEIDOU: B1I, B2I, B3I, B1C, B2a, B2bGALILEO: E1, E5a, E5b, E6QZSS: L1, L2, L5IRNSS: L5¹SBAS
PPPB2b PPP¹, HAS¹
Channels1408
Position RateUp to 20Hz
Signal Reacquisition< 1 s
RTK Signal Initialization²Typically < 10 s
Hot StartTypically < 15 s
Initialization Reliability> 99.9 %
Internal Memory32 GB
OSLinux
Display1.45" TFT LCD, 240 x 320 pixels
Tilt SensorIMU and E-bubble

POSITIONING³

High Precision Static Horizontal2.5 mm + 0.1 ppm RMS
High Precision Static Vertical3.5 mm + 0.4 ppm RMS
Static and Fast Static Horizontal3 mm + 0.5 ppm RMS
Static and Fast Static Vertical5 mm + 0.5 ppm RMS
Code Differential Horizontal0.25 m + 1 ppm RMS
Code Differential Vertical0.50 m + 1 ppm RMS
SBAS Positioning⁴ Accuracy0.60 m RMS
Fixed RTK Horizontal (Network RTK⁵)5 mm + 0.5 ppm RMS
Fixed RTK Vertical (Network RTK⁵)10 mm + 0.5 ppm RMS

INTEGRATED GNSS ANTENNA

AntennaHigh accuracy multi-constellation antenna, zero phase center, with internal multipath suppression

INTERNAL RADIO (optional)⁶

TypeTx - Rx
Frequency Range410 - 470 MHz / 902.4 - 928 MHz
Channel Spacing12.5 KHz / 25 KHz
Range3-4 Km in urban environment / Up to 10 Km with optimal conditions²

INTERNAL MODEM

Band
LTE FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28LTE TDD: B38/B39/B40/B41UMTS: B1/B2/B4/B5/B6/B8/B19GSM: B2/B3/B5/B8
SIMNano SIM card

COMMUNICATION

I/O Connectors5-pin Lemo (external power & radio), Type-C (power & data transfer), 1PPS port
Bluetooth2.1 + EDR, V5.0
Wi-Fi802.11 b/g/n
Web UITo upgrade the software, manage the status and settings, data download, etc. via Smartphone, tablet or other electronic device with Wi-Fi capability
Reference OutputsRTCM2.3, RTCM3.0, RTCM3.2 MSM, CMR, CMR+, DGPS
Navigation OutputsNMEA 0183

POWER SUPPLY

BatteryInternal rechargeable 7.2 V - 10200 mAh
Voltage9 to 28 V DC external power input with over-voltage protection (5-pin Lemo)
Working TimeUp to 12 hours
Charge TimeTypically 4 hours

PHYSICAL SPECIFICATION

DimensionsØ 151 mm x 94.5 mm
Weight1.3 Kg
Operating Temperature-40°C to 65°C (-40°F to 149°F)
Storage Temperature-40°C to 80°C (-40°F to 176°F)
Waterproof/DustproofIP67
Shock ResistanceDesigned to endure to a 2 m pole drop on hardwood floor with no damage
VibrationVibration resistant

1. Available with future firmware update.

2. Varies with the operating environment and with electromagnetic pollution.

3. Accuracy and reliability are generally subject to satellite geometry (DOPs), multipath, atmospheric conditions and obstructions. In static mode they are subject even to occupation times: the longer is the Baseline, the longer must be the occupation time.

4. Depends on SBAS system performance.

5. Network RTK precision depends on the network performances and are referenced to the closest physical base station.

6. Optional, activated via activation code.