Product Name: Beitian Gnss Antenna 3V-18V Zed-F9p High Gain Cors Rtk Glonass Beidou Galileo GPS Antenna High-Precision Survey Gnss Antenna TNC-K Bt-290 Model NO.: BT-290 Nature of Operation: Receiving Antenna base Antenna: High Gain Antenna Usage Occasion: base Antenna Bands: GPS/Glonass/Beidou/Galileo Connector: TNC-K Weight: 400g Ingress Protection: IP67 Supply Voltage: 3.0V - 18.0V Supply Current: Less Than 45mA Operating Temperature: -45 - +70degree Celsius Storage Temperature: -55 - +85degree Celsius Trademark: BEITIAN Transport Package: Carton Specification: 150mm*63.7mm Origin: China HS Code: 85291090 Product Description Beitian GNSS antenna 3V-18V ZED-F9P High Gain CORS RTK GLonASS BEIDOU GALILEO GPS antenna High-Precision Survey GNSS Antenna TNC-K BT-290Model: BT-290 GNSS antennaProduct Introduction BT-290antenna employs quadrifilar helical structure to receive signals of GPS L1/L2, GLonASS G1/G2and BDS B1/B2/B3GALILEO E1/E5b bands,which features high zenithal gain, favorable low elevation gain, wide-angle circular polarization and stable phase center. The antenna is suitable for Three-system high-precision survey and military positioning and widely used in situations such as unmanned aerial vehicles, geodetic survey, road construction, marine survey, wharf container operation, maneuvers and frontier guard.Features Quadrifilar helical structure is adopted to ensure favorable gain and axial ratio at low elevation, coincidence of phase center and geometric center and minimal influence to measurement precision.Wide beam of radiation pattern can make sure good reception of signals at low elevation and normal operation in some situations of serious shielding. The radome can resist high and low temperature impact, water, and ultraviolet rays, which can protect the antenna to work outdoors all the year round.Specifications Passive AntennaBandsGPSL1L2GLONASSG1 G2GALILEOE1 E5bBEIDOUB1B2B3Gain at ZenithL1≥5.5dBiL2≥5.0dBiG1≥5.0dBiG2≥5.0dBiE1≥5.0dBiE5b≥4.5dBiB1≥5.0dBiB2≥5.0dBiB3≥4.5dBiPolarizationRHCPHorizontal Coverage360oOutput Impedance50ΩOutput VSWR≤1.5Axial Ratio at Zenith≤3dBPhase Center Accuracy≤2mmLow Noise AmplifierGain(40±2)dBNoise Figure≤1.8dBInput VSWR≤2.0Output VSWR≤2.0Delay of Differential Transmission≤5nsSupply Voltage3.0V - 18.0VSupply Current≤45mAMechanical CharacteristicsDimensionsФ150mm*63.7mmConnectorTNC-KWeight400gIngress ProtectionIP67Operating EnvironmentOperating Temperature-45ºC~+70ºCStorage Temperature-55ºC~+85ºC1pc BT-290 GNSS antenna