Calian TW5394, TW5790, and TW5794 Smart GNSS Antennas are dual-band (L1/L2) antennas that integrate a Calian Accutenna® ceramic patch with eXtreme filtering and u-blox ZED-F9P and NEO-D95 GNSS receivers. The antennas feature a simultaneous, multi-constellation capability, including GPS, Glonass, Beidou, and Galileo. The TW5394, TW5790, and TW5794 series provide PointPerfect PPP-RTK augmentation via SPARTN, base/rover operation, and a precise heading solution. The Calian TW5394, TW5790, and TW5794 Smart GNSS Antennas offer RS422/485 RJ45 connectors and USB 2.0 Type-A male connectors with a low-profile gray radome housing. The GNSS antennas are ideal for various smart applications, including autonomous driving, smart agriculture, robotics, and unmanned aerial vehicles (UAVs). The TW5790 antennas are also suitable for geodetic surveys, precision timing, subsidence monitoring, and digital twin applications.