Hand-Held GNSS Integrated Rover System

Features also integrated into the new system are SD memory card slot, and wireless connectivity via Wi-Fi, Bluetooth or optional UHF radio pack.

The GRS-1 (Geodetic Rover System) was designed with two primary system design goals: smaller size and weight, and lower-than-expected cost. According to Ian Stilgoe, Product Marketing and Support manager, this results in a device equipped with a full GPS + GLONASS dual-frequency receiver, cellular modem and Windows PC into a very small, very versatile device for all applications."

Designed primarily as a GNSS network rover receiver, the GRS-1 has DGPS capability with the internal L1 GPS and Glonass antenna for GIS and navigation. When added the PGA-1 external antenna and connected to your local GNSS network via the internal modem, the user instantly receive dual frequency, dual constellation GNSS RTK centimeter accuracy. The GRS-1 also can handle post processing.

The GRS-1 uses the Windows Mobile operating system to run many applications including TopSURV and Topcon's GIS extensions for  ESRI's ArcPAD.

In addition to the network rover configuration, the GRS-1 also has an optional RH-1 radio module to work with existing Topcon GNSS Base station receivers already in the market. This allows the GRS-1 to work even if GSM coverage is not available.