Sokkia GRX3 GNSS Reciever

The Sokkia GRX3 is a full-featured, all-constellation GNSS receiver designed for precision RTK and static surveying applications. Engineered for top performance in any environment, the GRX3 supports GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS, and SBAS using 226 Universal Tracking Channels™. With its integrated 400 MHz UHF and SiteComm™ radios, internal 8 GB memory, and IP67-rated magnesium alloy body, the GRX3 is built for field reliability and flexibility.

The GRX3 incorporates Sokkia Tilt Technology with a 9-axis IMU and 3-axis eCompass, allowing you to measure points at up to 15° tilt without compromising accuracy. Whether you're performing RTK surveys, static sessions, or operating as a base or rover, the GRX3 adapts to your workflow and offers unmatched versatility in a compact footprint.

Key Features:

• 226 Universal Tracking Channels™ – Tracks all major satellite constellations and correction services
• RTK Accuracy – ±5 mm + 0.5 ppm (H), ±10 mm + 0.8 ppm (V)
• Tilt Compensation – Accurate to 1.3 mm/° tilt (≤10°); up to 15° supported
• Sokkia Tilt Technology – 9-axis IMU and 3-axis compass enable fast and accurate off-center point capture
• Integrated UHF & SiteComm™ Radios – Internal 1W UHF radio with typical range of 5–7 km, up to 15 km in optimal conditions
• 8 GB Internal Memory – Reliable onboard storage for static and RTK logs
• IP67 Dust & Water Protection – Fully ruggedized for harsh outdoor conditions
• Up to 10-Hour Runtime – Efficient internal battery, with external 12V input recommended for TX use
• L-Band Ready – Compatible with TopNET Global D & C correction services
• Magnet® Field & Office Compatible – Supports CAD-in-field, robotic control, GNSS processing, and road tools

The GRX3 is a professional-grade solution for surveyors who demand precision, speed, and flexibility in any field environment. Whether you're integrating it into an RTK network, using it as a base/rover pair, or working on difficult terrain, the GRX3 gets the job done with confidence.

What's Included

Single Receiver Package

• 1028556-02 – ASSY, GRX3 No Radio, No Cell
• 1029861-01 – Case, Hard, Sokkia GRX3
• 1027034-02 – Box, Shipping GRX3
• 1030648-01 – Card, GRX3 Quick Reference
• 1030768-01 – OAF, Default, GRX3
• 1005555-01 – Power Supply PPL65M-120(TC)
• 1005793-01 – Cable, Power 3 Pin US
• 14-008016-04LF – Cable, Power 5-Pin ODU to SAE + Ferrite
• 14-008005-03 – Cable REC to Serial DB9
• 1013602-01 – Cable, Low Drop, USB A to USB Micro B (1.5m)
• 1013050-01 – BKT, GPS Antenna Height Measure
• 22-006008-01 – Tribrach with Optical Plummet (Black)
• 1030650-01 – Tripod, SK-15 Wood Fiberglass QC
• 1022905-01 – Card, MyTopcon Reg EN
• 1059808-01 – Card, TopNET Live EN
• 51842 – Tribrach Adapter #5 w/ Removable Center
• 51949 – Prism Spacer, 100 mm

Rover UHF Package

• 1028556-32 – ASSY, GRX3 w/ TR4+ UHF (No Cell)
• 1029861-01 – Case, Hard, Sokkia GRX3
• 1027034-02 – Box, Shipping GRX3
• 1030647-01 – Card, Sokkia UHF Radio Freq Config
• 1030648-01 – Card, GRX3 Quick Reference
• 1030768-01 – OAF, Default, GRX3
• 1005555-01 – Power Supply PPL65M-120(TC)
• 1005793-01 – Cable, Power 3 Pin US
• 14-008016-04LF – Cable, Power 5-Pin ODU to SAE + Ferrite
• 14-008005-03 – Cable REC to Serial DB9
• 1013602-01 – Cable, Low Drop, USB A to USB Micro B (1.5m)
• 30-050501-01 – Antenna, Rubber Duck 440–470 MHz (HiPer Pro)
• 808016 – Pole, Carbon, Fixed 2m, 2-Section
• 1022905-01 – Card, MyTopcon Reg EN
• 1059808-01 – Card, TopNET Live EN

Network Rover Package

• 1028556-02 – ASSY, GRX3 No Radio, No Cell
• 1029861-01 – Case, Hard, Sokkia GRX3
• 1027034-02 – Box, Shipping GRX3
• 1030648-01 – Card, GRX3 Quick Reference
• 1030768-01 – OAF, Default, GRX3
• 1005555-01 – Power Supply PPL65M-120(TC)
• 1005793-01 – Cable, Power 3 Pin US
• 14-008016-04LF – Cable, Power 5-Pin ODU to SAE + Ferrite
• 14-008005-03 – Cable REC to Serial DB9
• 1013602-01 – Cable, Low Drop, USB A to USB Micro B (1.5m)
• 808016 – Pole, Carbon, Fixed 2m, 2-Section
• 1022905-01 – Card, MyTopcon Reg EN
• 1059808-01 – Card, TopNET Live EN

Base UHF 440–470 MHz Package

• 1028556-32 – ASSY, GRX3 w/ TR4+ UHF (No Cell)
• 1029861-01 – Case, Hard, Sokkia GRX3
• 1027034-02 – Box, Shipping GRX3
• 1030647-01 – Card, Sokkia UHF Radio Freq Config
• 1030648-01 – Card, GRX3 Quick Reference
• 1030768-01 – OAF, Default, GRX3
• 1005555-01 – Power Supply PPL65M-120(TC)
• 1005793-01 – Cable, Power 3 Pin US
• 14-008016-04LF – Cable, Power 5-Pin ODU to SAE + Ferrite
• 14-008005-03 – Cable REC to Serial DB9
• 14-008025-01 – Alligator Clips to SAE Cable
• 14-008099-01 – Cable, Net G3 Power SAE to Open Ends
• 14-008022-01 – Cable, SAE to SAE Extension
• 1013602-01 – Cable, Low Drop, USB A to USB Micro B (1.5m)
• 1013050-01 – BKT, GPS Antenna Height Measure
• 22-006008-01 – Tribrach with Optical Plummet (Black)
• 30-050501-01 – Antenna, Rubber Duck 440–470 MHz (HiPer Pro)
• 1030650-01 – Tripod, SK-15 Wood Fiberglass QC
• 1022905-01 – Card, MyTopcon Reg EN
• 1059808-01 – Card, TopNET Live EN
• 51842 – Tribrach Adapter #5 w/ Removable Center
• 51949 – Prism Spacer, 100 mm

Base & Rover UHF 440–470 MHz Package

• 1028556-32 – ASSY, GRX3 w/ TR4+ UHF (No Cell) ×2
• 1029861-01 – Case, Hard, Sokkia GRX3
• 1027034-02 – Box, Shipping GRX3
• 1030647-01 – Card, Sokkia UHF Radio Freq Config ×2
• 1030648-01 – Card, GRX3 Quick Reference ×2
• 1030768-01 – OAF, Default, GRX3 ×2
• 1005555-01 – Power Supply PPL65M-120(TC) ×2
• 1005793-01 – Cable, Power 3 Pin US ×2
• 14-008016-04LF – Cable, Power 5-Pin ODU to SAE + Ferrite ×2
• 14-008005-03 – Cable REC to Serial DB9 ×2
• 14-008025-01 – Alligator Clips to SAE Cable
• 14-008099-01 – Cable, Net G3 Power SAE to Open Ends
• 14-008022-01 – Cable, SAE to SAE Extension
• 1013050-01 – BKT, GPS Antenna Height Measure
• 1013602-01 – Cable, Low Drop, USB A to USB Micro B (1.5m) ×2
• 22-006008-01 – Tribrach with Optical Plummet (Black)
• 30-050501-01 – Antenna, Rubber Duck 440–470 MHz (HiPer Pro) ×2
• 1030650-01 – Tripod, SK-15 Wood Fiberglass QC
• 1022905-01 – Card, MyTopcon Reg EN ×2
• 1059808-01 – Card, TopNET Live EN
• 51842 – Tribrach Adapter #5 w/ Removable Center
• 51949 – Prism Spacer, 100 mm
• 808016 – Pole, Carbon, Fixed 2m, 2-Section