Product Name: Beitian 3-18V Drone Nav Rtk Receiver Four-System Helical Gnss Antenna Bds Glonass Galileo GPS Spiral Antenna SMA-J Bt-560d Model NO.: BT-560D Nature of Operation: Transmitting Antenna Usage Occasion: Handheld Antenna Frequency: Bds B1/GPS L1/Glonass G1/Galileo E1 Connector: SMA-J Weight: 18g Waterproof Grade: IP67 Supply Voltage: 3.0V - 18.0V Supply Current: Less Than 42mA Trademark: BEITIAN Transport Package: Carton Specification: 29.0*58.5mm Origin: China HS Code: 85291090 Product Description Model:BT-560D GPS antennaSpecificationsAntennaSpecificationsFrequency Range(MHz)GPS L1GLonASS L1BDSB1GALILEO E1Gain(dBi)<3Antenna AR (dB)≤3VSWR≤1.8PolarizationRight-hand circular polarizationPort Impedance(Ω)50 Electrical SpecificationsLNA Gain(dB)33±2Noise figure(dB)≤1.8Operating voltage(V)3.0V-18.0VOperating current(mA)≤42Structural CharacteristicsConnector typeSMA-JAntenna size(mm)Φ29.0*58.5Antenna weight(g)≤20Working EnvironmentOperating temperature(ºC)-40-+70Storage temperature(ºC)-55-+85Waterproof gradeIP671pc BT-560D GPS antenna