AX3704 is a helix antenna which supports GPS L1/L2, GLONASS G1/G2, BDS B1/B2 and is designed for UAV system and mobile devices. It can be used in aerial photographs, telemetry technology, disaster monitoring, traffic patrol, security monitoring etc. This helix antenna has exceptional pattern control, polarization purity and high efficiency in a very compact form factor. Antenna element has high gain and wide beam width to ensure the signal receiving performance of satellite at low elevation angle. AX3704 is equipped with an O-ring that makes the antenna waterproof grade can reach IP65 once installed on a mating surface.