{"product_id":"beitian-bt-208d-antenna","title":"Beitian BT-208D GNSS Antenna 38±2dB LNA, 4-Star Full-Band, MCX-JW for RTK Vehicle \u0026 Agriculture","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Beitian BT-208D GNSS antenna is a four-star full-band measurement antenna designed for RTK\/high-precision positioning use cases such as vehicles and agricultural machinery. It supports multi-system satellite signals and provides 360° horizontal coverage with compact sizing for easier installation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour-star full-band measurement antenna (BT-208D)\u003c\/li\u003e\n\u003cli\u003eMulti-system compatible frequency support: GPS \/ BDS \/ GLONASS \/ GALILEO \/ SBAS \/ QZSS \/ IRNSS \/ L-Band\u003c\/li\u003e\n\u003cli\u003eLNA gain: 38±2 dB\u003c\/li\u003e\n\u003cli\u003eGain: ≥4 dBi\u003c\/li\u003e\n\u003cli\u003e360° horizontal coverage angle\u003c\/li\u003e\n\u003cli\u003eRight-hand circular polarization\u003c\/li\u003e\n\u003cli\u003eMCX-JW connector with RG178 cable\u003c\/li\u003e\n\u003cli\u003eCeramic material (as stated)\u003c\/li\u003e\n\u003cli\u003eDesign notes (as stated): multi-feed point \u0026amp; symmetrical antenna structure; multipath suppression choke ring; surge protection design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBT-208D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency range \/ working mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGPS L1\/L2\/L5; BDS B1I\/B2I\/B3I\/B1C\/B2a\/B2b; GLONASS L1\/L2\/L3; GALILEO E1\/E5a\/E5b\/E6; SBAS L1\/L5; QZSS L1\/L2\/L5\/L6; IRNSS L5; L-Band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGain (dBi)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≥4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLNA gain (dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38±2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise figure (dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePassband fluctuation (dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna AR (dB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVSWR (antenna)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput VSWR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVSWR (electrical)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase center error (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePolarization\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRight-hand circular polarization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePort impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorizontal coverage angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating voltage (V)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0-12.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating current (mA)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMCX-JW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRG178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna size (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eΦ80*22.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna weight (g)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimension drawing (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eØ80 ±0.3; Ø73.5 ±0.1; Ø61; Ø50; height 22.4 ±0.3; 4-Ø3.2; 4-0.5 MAX; 10; 5.0; 62.5; 10.4; cable length 100 ±5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVehicle tracking and positioning\u003c\/li\u003e\n\u003cli\u003ePrecision agriculture \/ agricultural machinery positioning\u003c\/li\u003e\n\u003cli\u003eGeodetic surveying and hydrographic surveying\u003c\/li\u003e\n\u003cli\u003eLogistics and transportation positioning systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor product selection or integration support, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFour-star full-band measurement antenna BT-208D ×1\u003c\/li\u003e\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Beitian BT-208D GNSS antenna four-star full-band measurement antenna for RTK positioning, with compact round housing\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle.png?v=1783593303\"\u003e\u003cp\u003eDesigned for RTK and other high-precision positioning tasks, the BT-208D combines full-band coverage with a compact form for easier installs.\u003c\/p\u003e\n\u003cimg alt=\"Beitian BT-208D technical parameters table: multi-constellation GNSS bands, 38±2 dB LNA gain, 3–12 V supply, MCX-JW connector\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_4b69fc12-1b3a-43af-bcaf-db2980a0b248.png?v=1783593312\"\u003e\u003cp\u003eCore electrical specs are provided for integration planning, including supported GNSS bands, LNA gain, and power requirements.\u003c\/p\u003e\n\u003cimg alt=\"BT-208D antenna dimension drawing with mounting hole pattern and cable lead, plus RTK positioning accuracy infographic\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_1d29e78d-1b8c-4fab-9208-7ac8044b076f.png?v=1783593323\"\u003e\u003cp\u003eMechanical drawings help confirm fitment for vehicle or machinery mounting, including diameter, height, and hole placement.\u003c\/p\u003e\n\u003cimg alt=\"BT-208D underside view and feature highlights: stable signal reception, customizable appearance, and full-frequency coverage chart\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_6c30ab13-16cf-427f-932d-ee1c01d7006a.png?v=1783593333\"\u003e\u003cp\u003eA multi-feed, symmetrical structure is used to support stable reception and broad frequency coverage for multi-system GNSS work.\u003c\/p\u003e\n\u003cimg alt=\"GNSS systems icons (GPS, GLONASS, BDS, Galileo) and LNA gain highlight 38±2 dB with operating voltage 3–12 V\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_370574fc-3fcc-4741-b7e9-49e7f9971cbc.png?v=1783593344\"\u003e\u003cp\u003eMulti-constellation compatibility is paired with a 38±2 dB LNA and 3–12 V operating range to support stable output in the field.\u003c\/p\u003e\n\u003cimg alt=\"Product size specifications for the round GNSS antenna: about Ø80 mm x 22.4 mm, compact housing with short lead cable\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_8a093469-453a-4e82-a976-905917cf174d.png?v=1783593360\"\u003e\u003cp\u003eCompact sizing (approx. Ø80 × 22.4 mm) suits tight installations while keeping the antenna profile low.\u003c\/p\u003e\n\u003cimg alt=\"Construction callouts: antenna feed point, ceramic material, fixed mounting hole positions, and MCX-JW connector details\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_580a45a0-2fc5-497c-b6a5-29440ce291c8.png?v=1783593369\"\u003e\u003cp\u003eBuild details include a ceramic element, fixed mounting points, and an MCX-JW connector with RG178 cable for straightforward integration.\u003c\/p\u003e\n\u003cimg alt=\"GNSS gain test chart and comparison panel highlighting four-star full-range measurement antenna vs single-frequency antennas\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_388be9b7-4f6c-4716-a86e-b819c92bcd55.png?v=1783593381\"\u003e\u003cp\u003ePerformance and support comparisons are provided to help evaluate a measurement-grade antenna versus basic single-frequency options.\u003c\/p\u003e\n\u003cimg alt=\"Application display photo: precision agriculture tractor and a drone, representing high-precision positioning use cases\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_9f59cea9-b9ed-4d1f-93e6-38504d066bd8.png?v=1783593392\"\u003e\u003cp\u003eTypical applications include precision agriculture and mobile platforms that benefit from stable GNSS positioning.\u003c\/p\u003e\n\u003cimg alt=\"Application scenarios grid for GNSS antenna: vehicle networking, tracking, autonomous driving, training, logistics, precision agriculture\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_5336725b-b8cd-4fbe-b71e-8e99b97db508.png?v=1783593401\"\u003e\u003cimg alt=\"Layered package graphic featuring BT-208D with example accessories (board, wires, USB cable) and customization note\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-AMR-RTK-High-precision-38db-High-Gain-GNSS-Vehicle_a87ce665-2dc4-48e6-b432-a78837a970bb.png?v=1783593410\"\u003e\n\u003c\/div\u003e","brand":"Beitian","offers":[{"title":"BT-208D","offer_id":53340973629664,"sku":"Beitian_AMR_R_1dcad8-1","price":94.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/1._-E_48aac92a-49df-4e1c-8a1b-f3f2ecaaf209.png?v=1783568766","url":"https:\/\/rcdrone.top\/tr\/products\/beitian-bt-208d-antenna","provider":"RCDrone","version":"1.0","type":"link"}