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GR 5

Topcon is proud to be the world leader in advanced satellite positioning technology. As the original pioneer of dual-constellation and G3 triple-constellation integration, Topcon continues to lead all other manufacturers with the most sophisticated receiver technology and design.

One look at the GR-5, and you notice the advanced antenna design. This patented Fence Antenna™ technology provides industry-leading tracking sensitivity and multipath rejection in a compact and lightweight package. By combining this antenna with the latest innovations in tracking algorithms, Topcon has given the GR-5 our most highly advanced tracking performance ever!

The GR-5’s tracking capabilities are not only state-of-the-art, but also deliver unmatched value to our customers by providing accuracy levels superior to other RTK systems in difficult environments. While other systems sacrifice accuracy for tracking performance, the GR-5 gives you the best of both! The GR-5's design didn’t stop simply with new antenna and tracking technologies, it also boasts numerous advancements such as: an increased number of channels, extended battery life, expanded internal memory options, new internal modem design, internet-compatible firmware, MAGNET software capable and much, much more. It all sums up to… More Performance. More Accuracy. More Productivity.


  • 216 Universal Tracking Channels
  • G3 Tracking Technology (GPS/GLONASS/GALILEO)
  • Advanced Fence Antenna™ Technology - Unsurpassed tracking and performance
  • Sophisticated, High Accuracy RTK technology with position updates up to 100Hz
  • Integrated Dual Communication System with multiple Radio and Cellular combinations
  • MAGNET software compatible
  • 32GB SDHC storage support
  • Dual hot-swappable batteries

Technical Specifications

Number of Channels 216 Universal Channels
Signals Tracked G3 Technology – GPS, GLONASS and GALILEO*
RTK H: 10 mm + 1 ppm
  V: 15 mm + 1 ppm
Static/Fast Static H: 3mm + 0.5ppm
  V: 5mm + 0.5ppm
Optional Radio Type Integrated UHF TX/RX, or 915MHz Spread Spectrum
Base Radio Output 0.01 - 1.0W, user selectable
Cellular Communications Integrated GSM/GPRS or CDMA****
Wireless Communications Integrated Bluetooth® 2.0 compliant
Memory Internal, Removable SD/SDHC Memory Card
Data Update/Output Rate 1Hz – 100Hz Selectable***
Real Time Data Output TPS, RTCM SC104, CMR, CMR+
ASCII Output NMEA 0183 version 2.x and 3.0
Enclosure Magnesium I-Beam Housing
Operating Temperature -40 to +70°C**
Dust/Water Protection IP66
Shock Rating 2 meter pole drop to concrete
  IEC 60068-2-29, IEC 60068-2-27
Vibration Rating SAE J1211, Section 4.7
  MIL-STD 202G, Method 214A

  • Multiple patents are associated with Fence Antenna™ technology.
  • GIOVE A/B test satellites are available for signal evaluation and test purposes.
  • -30 to +60°C with integrated batteries
  • Data rates from 10 - 100hz and higher available as option
  • GSM/CDMA available as factory options

For more details download the brochure :


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