AT-603 is a full frequency GNSS measurement antenna that supports L1/L2/L5 satellite navigation signal reception for Beidou II, GPS, and GLONASS. It can be widely used in high-precision navigation and positioning applications such as geodetic surveying and mapping, marine surveying, precision agriculture, deformation monitoring, etc. Product Application It can be widely used in geodetic mapping, oceanographic survey, precision agriculture, Deformation monitoring and other high-precision navigation and positioning occasions. Technical Characteristics The use of multi feed point design ensures the performance of right-handed circular polarization and phase center, reducing the impact of measurement errors; The antenna unit has high gain and good reception effect for low elevation satellite signals, ensuring a sufficient number of available satellites in the system; The low noise amplifier adopts pre filtering technology to effectively suppress out of band interference signals and improve system reliability; The IP67 protection of the outer shell provides protection for the antenna to work in the field for a long time. Main technical indicators (typical) Patch Architecture:Dual Four-point-feed, Single-layer Patch Supported positioning signal bands GPSL1/L2/L5; BDSB1/B2/B3; GLONASSG1/G2/G3; GalileoEl/E5a/E5b/E6 L-Band Peak Gain*:5.0 dBi Polarization:RHCP Axial Ratio@zenith:1.5dB Azimuth Coverage:360° Impedance:50 ohm Phase-center accuracy: 2.0mm Phase-center repeatability: 1.0mm LNA Frequency Range:1164MHz~1290MHz/1525MHz~1615MHz LNA Gain*:40±2.0dBTyp. @25°C Group delay variation:5ns Noise Figure*:2.0 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:152mm*67.9mm Connector:TNC Female Radome:PBT+PC Operating Temp:4085 Storage Temp:4585 Humidity:95% No-condensing Waterproof:IP67