can receive signals in GPS, GLONASS, Galileo and Beidou frequency bands. The antenna has the characteristics of high gain, good gain at low elevation angles, wide-angle circular polarization, and stable phase center. It is suitable for four-, high-precision surveying and mapping fields, and is widely used in geodetic surveying, road construction, ocean survey, terminal container operations and other occasions. The antenna part adopts a multi-feed point design to ensure that the phase center and the geometric center coincide, minimizing the of the antenna on measurement errors; The antenna unit has high gain and beam width in the pattern, which ensures the reception of signals at low elevation angles and can still search for stars normally under some serious obstruction conditions; High and low temperature resistance, waterproof, anti- cover to protect the antenna Type:B:antenna+M90SD+cable TNC Color:As Shown Material:Plastic Working frequency: GPSL1/L2 BeiDouB1/B2/B3 GLONASSG1/G2 GalileoE1/E5b Polarization type: RHCP Impedance: 50Ω Horizontal coverage angle: 360° Output standing wave ratio: less than equal 1.5 Antenna AR: less than equal 3dB Phase center error: less than equal 3mm Low Noise Amp lifier Specifications LNA gain: 40±2dB Noise figure: less than equal 1.5dB Output standing wave ratio: less than equal 1.5 Working voltage: +3V-+16V Working current: less than equal 50mA Connector: TNC-K (female) Antenna size (mm): Ф151.6mmx63mm Working temperature (℃) -40℃: -+70℃ Storage temperature (℃) -55℃: -+85℃ Waterproof grade: IP67 Package Contents: 2x antenna 2x M90SD magnetic base 2x 5m signal cable 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.