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GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver
GRX3 GNSS Receiver

GRX3 GNSS Receiver

The Sokkia GRX3 is designed to survive the toughest field conditions while being smaller, lighter, & packed with the latest cutting-edge GNSS technology. It can receive all signals from all satellites and constellations in a small, tough design with an integrated IMU and eCompass.

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Positioning made easy

This fully integrated all-in-view constellation RTK GNSS receiver
brings a new level of versatility and flexibility into your precision
positioning applications. The GRX3 provides unmatched usability and
versatility that’s sure to enhance your productivity.
And like all Sokkia products, you can customize it to meet your needs
and create your own workflows.
• Sokkia Tilt Technology
• L Band Ready Technology
• 226 Universal Tracking Channels™ covering all modernized signals
(GPS, GLONASS, Galileo, BeiDou, IRNSS, QZSS, SBAS)
• Integrated 400MHz UHF and SiteComm™ Radios
• RTK and static survey operations
• Fusion Positioning™ technology automated workflow
• Standard RTK and Network RTK
• IP67 rated

GRX3 GNSS Receiver
GRX3 GNSS Receiver
Sokkia Tilt Technology

The Sokkia GRX3 incorporates a revolutionary 9-axis inertial
measurement unit (IMU) and an ultra-compact 3-axis eCompass.
This advanced technology compensates for mis-leveled field
measurements out of plumb by as much as 15 degrees. Awkward
shots on steep slopes or hard to reach spots are now a breeze with
tilt technology.

Open Architecture

The GRX3 architecture is designed so that third parties can write their own applications.

All Constellation Support
Featuring 226 Universal Tracking Channels with Universal Tracking Technology, the GRX3 has you covered. With programmable channels for tracking available signals, the GRX3 supports all modernized signals.
Multiple Wireless Technologies

The most commonly used wireless technologies can be integrated into the GRX3 receiver. Digital UHF, Network RTK, and SiteComm™.

Maximum Versatility
Utilizing full wireless connectivity and no voice feedback, the GRX3 enables the use of both RTK and network RTK technologies. It can be operated as both a private RTK base and RTK rover using the internal digital UHF.
Stay in Control
The GRX3 includes built-in internal Bluetooth® capability that allows you to choose your field controller model and software. Whether it is a small palm-sized screen device, a larger screen handheld, or even a field laptop, the GRX3 is ready to connect.
Ready for the field
The GRX3’s magnesium alloy body can handle even the toughest job site conditions. It’s compact, watertight, and rugged with IP67 rated dust and water protection.
GRX3 GNSS Receiver
GeoPro Field

Welcome to the quickest and easiest way to collect and layout
points in the field. GeoPro Field’s user friendly interface and simple
but powerful controls help you work faster and more precisely.
Graphical interface available on
Windows®tablets
• Collect field measurements
• Control GNSS and robotic systems from Sokkia
• CAD in the field functionality
• Export point files to 3rd party software

GeoPro Office

Process field measurement data from a variety of sensors in the
same job file.
By combining data from multiple sensors, you get more
a complete view of the project than you would with separate
static files from each sensor.
• Process raw data from field measurements
• Work with total station, digital level, and GNSS receiver data
• GNSS post-processing
• 3D CAD view (optional module)
• Road design tools
(optional module)

Brochure - EN
Number of Universal Tracking Channels

226 UTC technology
Tracked Signals

GPS L1 C/A, L1C, L2P(Y), L2C, L5
GLONASS L1 C/A, L1P, L2 C/A, L2P, L3C
BeiDou B1, B2
Galileo E1,E5a, E5b, Alt-BOC
SBAS L1 C/A, L5 WAAS/MSAS/EGNOS/GAGAN
QZSS L1 C/A, L1C, L1-SAIF, L2C, L5
Static/Fast Static

H: 3 mm + 0.4 ppm
V: 5 mm + 0.5 ppm*
Radio

Built-in 425-470 MHz UHF radio
Dust/Water Protection

IP67
Dimensions

150 x 100 x 150 mm (w x h x d)
Operating Time

RX mode -10hr, TX mode 1W – 6hr
Weight

<1.15 kg
Operating Temperature

-40°C to 70°C
Operation

Single-button operation for power, receiver reset, memory initialization
Display panel

22 LED status indicators
Internal Radios

425-470 MHz UHF radio
Max Transmit Power: 1W
Range: 5-7 km typical; 15 km
in optimal conditions.***
Memory

Internal Non-removable 8 GB SDHC

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