The GCX2 is a multiconstellation, dual-frequency receiver that connects via Bluetooth to the Sokkia S-10 or GHX2 field controller. It uses 226 channels, each optimized to constantly track available satellite signals, the company says. It offers radio-free RTK operation via interference-free data communication technology, which eliminated licensing issues, according to the company. When used as a base station, it may support up to three concurrent GCX2 rovers at a range up to 300 meters. Each receiver can be used as a base or a rover.