UM982 BDS/GPS/GLONASS//QZSS Full-system, full-frequency, high precision positioning and directional modules, Based on NebulasIV, a new-generation baseband and high-precision algorithm integrated GNSS SoC chip developed by Hexisun. Master antenna and slave antenna simultaneously track all frequency points of the whole system including BeiDou 3 global signals, realizing on-chip RTK positioning and dual-antenna directional solving. Built-in advanced anti-interference unit ensures thatthe module can still provide reliable and accurate positioning accuracy even in complex electromagnetic ronments. Or iented to high-precision navigation and positioning fields such as drones, lawnmowers, precision agriculture and intelligent driving. Hardware overview: USB Type C connector easily connects the UM982's UART3 to the UPrecise for configuration and quick viewing of NMEA statements. Antennas: The left SMA connector is the GNSS antenna signal input (secondary antenna) The right SMA connector is the GNSS antenna signal input (main antenna) 1. GNSS Technical Parameters Models:EM-500 Supported positioning signal bands: for GPS Ll/L2/L5 for Beidou B1/B2/B3 for Glonass G1/G2/G3 for E1/E5a/E5b/E6 L-Band Gain: equal 5.5dBi Axial Ratio@zenith: less than equal 3.0dB Polarization:Right Circular Polarization (RHCP) Azimuth Coverage:360 Phase center error (mm):2mm Impendance:50ohm 2. Low Noise Amplifier Characteristics (LNA) LNA Gain:402.0dB(Typ.@25C) Noise Figure: less than equal 1.8dB Supply Voltage: 3.3-15.0VDC Current Consumption:35mA output V.S.W.R: Less than 2.0 3. Mechanical and environmental Dimension:160x65mm connector:TNC-K (Customization not supported) Weight:350g Installation mode:BSW5/8Inch-11 fastener Waterproof/dustproof:IP67 Working temperature:-40 - +85 Storage Temp:-45 - +85 Humidity:95% No-condensing Color:As Shown Material:PC+Metal Package Contents: 1 * High-precision GNSS board(Module only) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.