OGG-BD-36-D is a four-system total frequency point vehicle antenna supporting GPS, BDS, GLONASS, and GALILEO, which can be widely used in automated farm equipment, high precision UAV, vehicle, and other G3001 is a three system three frequency point handheld antenna supporting GPS, BDS, GLONASS, which can be widely used in portable equipment positioning, mapping, high precision UAV and other industries. Firstly, its passive antenna has a high gain, wide beam, good reception of low elevation angle signal, and can still receive stars generally in the more obscuring severe environment; secondly, its passive antenna has a vast working band, which can well support multi-system multi-frequency point work; and the volume is tiny, lightweight, reliable structure, and meets IP65 after assembly, which significantly improves the reliability of the whole UAV, such as waterproof, impact, etc.; finally, the antenna Out-of-band suppression is high, which can effectively avoid signal interference from communication base stations and other signals that lead to system instability.