The C220 GR2 is a high-performance, multi-constellation GNSS choke ring antenna, specifically optimized for GNSS reference station applications and RTK network infrastructures. Offering exceptional multipath mitigation and sub-millimeter phase-center accuracy, the C220 GR2 delivers a durable solution for demanding positioning and navigation applications, including static and real-time geodetic reference stations, surveying, mapping, machine control, and autonomous navigation.