Sokkia GRX1 GNSS Receiver GPS+GLONASS

Sokkia GRX1 GNSS Receiver

Sokkia GRX1 receiver brings a new level of flexibility into precision GNSS applications. Whether it’s used for RTK base or rover, for network RTK rover or even as a static receiver, the GRX1 provides unmatched usability and convenience that increases field work efficiency on every job site.

The GRX1 GNSS receiver is a fully integrated GPS & GLONASS receiver and antenna, digital UHF modem, GSM/GPRS module, Bluetooth® module and detachable battery into a compact and rugged magnesium alloy body.

Fully Scalable Composition

GRX1’s scalable architecture will maximize allow you to return on investment. You start with an L1 GPS receiver with minimal initial costs, which can be upgraded to L1 GPS+GLONASS, to L1/L2 GPS, up to 72-channel L1/L2 GPS+GLONASS receiver at any time you need.  

Maximum Versatility in RTK Applications

Utilizing full wireless connectivity and the Sokkia-invented voice navigation system, the GRX1 dramatically facilitates the use of both RTK and network RTK technologies.

• Built-in GSM/GPRS modem makes the GRX1 an ideal rover receiver for
  network RTK positioning.


• The GRX1 can be used for both private RTK base and RTK rover using
  internal digital UHF modem without any extra device.


• It also supports network RTK where the correction data is broadcasted by
  UHF radio.


• Voice messages notify the users when RTK is fixed or lost, or other
  problems occur. This feature dramatically increases work efficiency by
  eliminating a need for repeated checks with the controller display.

Specifications: