The TW1721 is a compact, wideband Accutenna™ technology GNSS antenna that provides accurate circular reception for allupper L- band GPS, GLONASS, Beidou, and Galileo signals ( L1, G1, B1, B1 BOC, B1-2, E1) and associated augmentation signals (WAAS, EGNOS and MSAS).

The TW1721 provides truly circular response across the full frequency of the antenna providing superior multi-path signal rejection resulting in higher accuracy ofposition and time.