Product Parameters HA-301A GNSS antenna adopts eight-arm coupling and four-feed point feeding technology, supports L1 and L2 dual-band satellite navigation signal reception of Beidou II, GPS, GLONASS and GALILEO systems, built-in low noise amplifier, and adopts two-stage filter , good out-of-band suppression and strong anti-interference ability, ensuring normal operation in harsh electromagnetic environments. Meet the needs of current multi-system compatibility and high-precision measurement. The antenna adopts multi-arm spiral technology, which ensures the performance of right-handed circular polarization and phase center, and reduces the influence of measurement errors; The antenna unit has the characteristics of high gain and small gain roll-off, and has a good reception effect on satellite signals at low elevation angles; Compact low noise, high gain amplification and excellent out-of-band rejection; Electrostatic protection: 15KV (air discharge); Small size, light weight, easy to carry and install. Main technical indicators (typical) Patch Architecture:Quadrifilar Helix Supported positioning signal bands BD：B1/B2/B3； GPS：L1/L2； GLONASS：G1/G2； Galileo：El/E5b Peak Gain*:≥2.0 dBi Polarization:RHCP Axial Ratio@zenith:≤1.5dB Azimuth Coverage:360° Impedance:50 ohm LNA Frequency Range:1197MHz~1278MHz/1559MHz~1606MHz LNA Gain*:35±3.0dB（Typ. @25°C） 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:Φ71mm*27.5mm Connector:SMA-J Radome:ABS+PC Operating Temp:－40℃～＋85℃ Storage Temp:－45℃～＋85℃ Humidity:95% No-condensing Waterproof:IP67
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