Antenna

The EV004 GNSS Reference Station Antenna is a professional-grade, multi-system, full-frequency geodetic antenna designed for CORS networks, survey reference stations, earthquake monitoring systems, bridge deformation monitoring, dock automation, and global navigation satellite system reference applications. Covering BeiDou B1/B2/B3, GPS L1/L2/L5, GLONASS L1/L2/L3, Galileo E1/E5a/E5b/E6, and L-Band — the EV004 provides complete multi-constellation, multi-frequency signal reception in a single compact antenna element.

Built around a unique choke and choke plate structural design, the EV004 delivers sub-millimeter phase center accuracy with high stability and excellent repeatability — the fundamental requirement for centimeter and millimeter-level geodetic positioning, precise point positioning (PPP), and long-baseline RTK applications. With a maximum gain of 6dBi, LNA gain of 40±2dB on both L1 and L2 bands, noise figure of 1.5dB or less, and IP67 waterproof and dustproof rating, the EV004 is engineered for permanent outdoor installation in the most demanding field environments.