KXAT401_ four B1L1 anti-jamming all-in-one machine completes the reception, amplification, downconversion, filtering and anti-interference processing of 4-channel BDS_B1 and GPS_L1-frequency point signals, and adopts 12V-32V voltage power supply, which is composed of four parts: antenna array assembly, radio frequency component, anti-interference processing component and other components, which can realize the anti-three broadband interference functions, and can achieve high-precision positioning and precise timing under strong interference conditions.