STA-609 GNSS antenna adopts multi-arm and multi-feed point technology, supports L1, L2/L5 and L-band satellite navigation signal reception of BD II, GPS, GLONASS and GALILEO systems, built-in pre-filter, low noise amplifier and final filter, good out-of-band suppression, strong anti-interference ability, ensuring normal operation in harsh electromagnetic environment, meeting the current needs of multi-system compatibility and high precision measurement.