Product Parameters The HA-901 GNSS antenna adopts multi arm multi feed technology and supports L1, L2/L5, and L-band satellite navigation signal reception for Beidou second-generation, GPS, GLONASS, and GALILEO systems. It is equipped with a multi-level filter and low noise amplifier, with good out of band suppression and strong anti-interference ability, ensuring normal operation in harsh electromagnetic environments. Meet the current requirements for multi-system compatibility and high-precision measurement. Product Application The HA-901 GNSS antenna adopts multi arm multi feed technology and supports L1, L2/L5, and L-band satellite navigation signal reception for Beidou second-generation, GPS, GLONASS, and GALILEO systems. It is equipped with a multi-level filter and low noise amplifier, with good out of band suppression and strong anti-interference ability, ensuring normal operation in harsh electromagnetic environments. Meet the current requirements for multi-system compatibility and high-precision measurement. Technical characteristics The use of multi arm spiral technology ensures right-handed circular polarization and phase center performance, reducing the impact of measurement errors; The antenna unit has the characteristics of high gain and small gain rollover, which is good for receiving low elevation satellite signals; Exquisite low noise, high gain amplification, and excellent out of band suppression; Small size, light weight, easy to carry and install. Main technical indicators (typical) Patch Architecture:Quadrifilar Helix Supported positioning signal bands GPS: L1/L2/L5 GLONASS: L1/L2/L3 BDS: B1/B2/B3 Galileo: E1/E5/E6 L-band Peak Gain*:2.5 dBi Polarization:RHCP Axial Ratio@zenith:1.5dB Azimuth Coverage:360° Impedance:50 ohm LNA Frequency Range:1164MHz~1278MHz/1525MHz~1615MHz LNA Gain*:35±3.0dBTyp. @25°C Group Delay Variation:5ns Noise Figure*:1.5 dB@25°C , Typ. Output VSWR:1.8:1 typ. 2.0:1max Operation Voltage:3.0~6.0V DC Operation Current:45mA Mechanicals & Environmental Dimension:40.8mm*40.2mm Connector:SMA-J Radome:ABS+PC Operating Temp:4085 Storage Temp:4585 Humidity:95% No-condensing Waterproof:IP67