{"product_id":"beitian-bt-3707a-antenna","title":"Beitian BT-3707A RTK Differential High-Gain GNSS Antenna SMA-K IP67 for UGV\/AGV, UAV, Marine Robot","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eBeitian BT-3707A is an RTK differential high-gain GNSS antenna designed for high-dynamic positioning and velocity measurement on moving platforms. This GNSS antenna uses a multi-feed design to align the phase center and geometric center, helping reduce measurement error impact in complex environments while maintaining compact size and low wind resistance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour-star, multi-frequency reception: BDS, GPS, GLONASS, Galileo, QZSS (bands listed in Specifications)\u003c\/li\u003e\n\u003cli\u003eMulti-feed design to reduce the impact of antenna-related measurement errors\u003c\/li\u003e\n\u003cli\u003eHigh-gain LNA for improved signal performance and support for longer cables\u003c\/li\u003e\n\u003cli\u003eStrong out-of-band suppression\/anti-interference performance (as described)\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof design\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant plastic outer cover with insulated internal protection design\u003c\/li\u003e\n\u003cli\u003e360° horizontal coverage angle\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBT-3707A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector \/ Joint model\u003c\/td\u003e\n\u003ctd\u003eSMA-K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency range (supported signals)\u003c\/td\u003e\n\u003ctd\u003eBDS: B1I, B2I, B3I\u003cbr\u003eGPS: L1C\/A, L2P (Y)\/L2C, L5\u003cbr\u003eGLONASS: L1, L2\u003cbr\u003eGalileo: E1, E5a, E5b\u003cbr\u003eQZSS: L1, L2, L5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort \/ Output impedance\u003c\/td\u003e\n\u003ctd\u003e50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarization method\u003c\/td\u003e\n\u003ctd\u003eRight-handed circular polarization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna gain\u003c\/td\u003e\n\u003ctd\u003e3 dBi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLNA gain\u003c\/td\u003e\n\u003ctd\u003e35 ±2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise figure \/ Noise coefficient\u003c\/td\u003e\n\u003ctd\u003e≤2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput VSWR\u003c\/td\u003e\n\u003ctd\u003e≤2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage standing wave ratio\u003c\/td\u003e\n\u003ctd\u003e≤2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna axis ratio\u003c\/td\u003e\n\u003ctd\u003e≤3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIn-band flatness\u003c\/td\u003e\n\u003ctd\u003e±2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase center error\u003c\/td\u003e\n\u003ctd\u003e±2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorizontal coverage angle\u003c\/td\u003e\n\u003ctd\u003e360°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply \/ Working voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V - 12.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply \/ Working current\u003c\/td\u003e\n\u003ctd\u003e≤55 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions \/ Antenna size\u003c\/td\u003e\n\u003ctd\u003eΦ90 * 25.5 mm (excluding connectors\/joints)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e130 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress \/ Waterproof level\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating \/ Working temperature\u003c\/td\u003e\n\u003ctd\u003e-55°C to +85°C (also listed as -40°C to +85°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temperature\u003c\/td\u003e\n\u003ctd\u003e-55°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking relative humidity\u003c\/td\u003e\n\u003ctd\u003e95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUGV and autonomous vehicles (including agricultural autonomous vehicles)\u003c\/li\u003e\n\u003cli\u003eMarine robots \/ unmanned ships\u003c\/li\u003e\n\u003cli\u003eUAV positioning applications\u003c\/li\u003e\n\u003cli\u003eAgricultural machinery and other high-speed mobile systems\u003c\/li\u003e\n\u003cli\u003eNavigation scheduling, tracking\/monitoring, measurement and control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eBT-3707A Antenna x1\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor installation guidance or compatibility questions with RTK positioning modules\/receivers, contact support via https:\/\/rcdrone.top\/ or email support@rcdrone.top.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Beitian BT-3707A RTK differential high-gain GNSS antenna with SMA-K connector and IP67 specs\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For.png?v=1783599833\"\u003e\u003cp\u003eBuilt for high-dynamic RTK positioning, BT-3707A combines a compact radome with IP67 sealing for outdoor robotics.\u003c\/p\u003e\n\u003cimg alt=\"BT-3707A GNSS antenna specification sheet with frequency bands, LNA gain, impedance and waterproof rating\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_1238f466-bf9f-4aa7-a4f1-b2ed044ae15b.png?v=1783599843\"\u003e\u003cimg alt=\"Multi-constellation, multi-frequency GNSS support graphic for BT-3707A (GPS, BDS, GLONASS, Galileo, QZSS)\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_a3dcbf1d-e290-40c2-b115-cb687a530fde.png?v=1783599853\"\u003e\u003cp\u003eMulti-constellation and multi-band reception supports stable RTK fixes across GPS, BDS, GLONASS, Galileo, and QZSS.\u003c\/p\u003e\n\u003cimg alt=\"Anti-interference and out-of-band suppression feature graphic for BT-3707A GNSS antenna LNA\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_abeef3a9-3df0-4b82-9302-0dd37145f52a.png?v=1783599862\"\u003e\u003cp\u003eStrong out-of-band suppression helps reduce interference and lowers the risk of losing lock in complex RF environments.\u003c\/p\u003e\n\u003cimg alt=\"RTK module compatibility and small-size overview for BT-3707A antenna with top and bottom views\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_b29d568b-74f7-4f61-b2f6-3e021eb1e604.png?v=1783599878\"\u003e\u003cp\u003eThe multi-feed design aligns phase center and geometry to help minimize antenna-related measurement error on moving platforms.\u003c\/p\u003e\n\u003cimg alt=\"BT-3707A GNSS antenna dimensions (90 mm x 25.5 mm) and SMA-K interface for easy installation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_f184a4aa-c73f-45ce-a682-a9a0bbfa20d4.png?v=1783599887\"\u003e\u003cp\u003eA low-profile 90×25.5 mm body and SMA-K interface make integration straightforward on UGVs, UAVs, and marine robots.\u003c\/p\u003e\n\u003cimg alt=\"Application collage for BT-3707A antenna: UAV, unmanned ship, agricultural machinery, and driverless car\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_409c62af-f0b9-427f-a6f8-24b5e6a1aa1c.png?v=1783599899\"\u003e\u003cp\u003eDesigned for positioning, tracking, and control across UAVs, unmanned ships, agricultural machinery, and autonomous vehicles.\u003c\/p\u003e\n\u003cimg alt=\"Antenna performance testing and gain plot screenshot for BT-3707A GNSS antenna validation\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_2b03306d-2e88-4cee-9a2a-80e3d94dbf05.png?v=1783599908\"\u003e\u003cimg alt=\"Package contents image listing BT-3707A antenna x1 with product illustration\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Differential-High-Gain-GNSS-Antenna-BT-3707A-For_54f4a202-09bc-4c25-914e-236d2e50a3e6.png?v=1783599917\"\u003e\u003cp\u003eIn the box: BT-3707A GNSS antenna (1 pc).\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Beitian","offers":[{"title":"Default Title","offer_id":53340897181920,"sku":"BT-3707A-1","price":154.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/ABUIABACGAAg6MLBsgYo9ZmoUjDoBzjoBw.jpg?v=1783565084","url":"https:\/\/rcdrone.top\/fa\/products\/beitian-bt-3707a-antenna","provider":"RCDrone","version":"1.0","type":"link"}