{"product_id":"beitian-bt-208-antenna","title":"Beitian BT-208 Full-Frequency GNSS Survey Antenna for RTK Measurement, IP67, TNC-K, Multi-Constellation","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Beitian BT-208 is a full-frequency, multi-constellation GNSS survey antenna designed for RTK measurement, intelligent inspection, and deformation monitoring. It features a multi-feed-point design with a fully symmetrical antenna structure to help maintain a stable phase center and reduce antenna-pair measurement error. High gain and low VSWR improve reception, including low-elevation signals in challenging environments.\u003c\/p\u003e\u003cp\u003eThe antenna uses an anti-multipath choke plate and an anti-surge design to help suppress out-of-band strong interference for reliable operation. It is rated IP67 for outdoor use.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFull-frequency GNSS reception across multiple systems (GPS, BDS, GLONASS, Galileo, SBAS, QZSS, IRNSS, L-Band)\u003c\/li\u003e\n\u003cli\u003eMulti-feed-point, fully symmetrical antenna structure for stable phase center\u003c\/li\u003e\n\u003cli\u003eLow VSWR and improved low-elevation signal reception\u003c\/li\u003e\n\u003cli\u003eAnti-multipath choke plate and anti-surge design to suppress strong out-of-band interference\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof grade\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-208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency range \/ systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGPS L1\/L2\/L5\u003cbr\u003eBDS B1I\/B2I\/B3I\/B1C\/B2a\/B2b\u003cbr\u003eGLONASS L1\/L2\/L3\u003cbr\u003eGALILEO E1\/E5a\/E5b\/E6\u003cbr\u003eSBAS L1\/L5\u003cbr\u003eQZSS L1\/L2\/L5\/L6\u003cbr\u003eIRNSS L5\u003cbr\u003eL-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\u003e5.5\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\u0026lt;=3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVSWR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;=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\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\u0026lt;=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+\/-2\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\u0026lt;=45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential propagation delay (ns)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;=5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTNC-K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRadome material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS\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\u003eΦ100*55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimension tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiameter: 100.00+\/-0.3 mm\u003cbr\u003eHeight: 55.00+\/-0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight (g)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003espiral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting holes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11UNC deep 19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating temperature (°C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 to +85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage temperature (°C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-55 to +85\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\u003eWaterproof grade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmentally friendly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eROHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eBT-208 antenna x1\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAdditional packages are shown for reference, including: Antenna BT-M90SD (TNC 3-5 m feeder package) x1; Antenna BT-M90SD (SMA 3-5 m feeder package) x1; Antenna BT-M110SLD (TNC 3-5 m feeder package) x1; Antenna BT-M110SLD (SMA 3-5 m feeder package) x1. Wire length joints can be customized.\u003c\/p\u003e\u003cp\u003eFor package selection and cable-length customization support, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGeodesy, land surveying, and mapping\u003c\/li\u003e\n\u003cli\u003eWaterway surveying and mapping\u003c\/li\u003e\n\u003cli\u003ePrecision agriculture\u003c\/li\u003e\n\u003cli\u003eMarine and oceanographic surveying\u003c\/li\u003e\n\u003cli\u003eInspection measurement and deformation monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Comparison table of Beitian BT-208 full-frequency GNSS survey antenna specifications and key parameters\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring.png?v=1783590314\"\u003e\u003cp\u003eBuilt for RTK measurement and monitoring tasks, the BT-208 focuses on stable phase-center performance and reliable multi-band reception.\u003c\/p\u003e\n\u003cimg alt=\"Beitian BT-208 full-frequency GNSS survey antenna on mounting poles with cable, promotional overview graphic\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_feddf6bc-3120-4cc0-9257-daa747a95df9.png?v=1783590324\"\u003e\u003cp\u003eFull-frequency, multi-constellation tracking supports surveying, mapping, agriculture, and marine workflows that depend on consistent satellite lock.\u003c\/p\u003e\n\u003cimg alt=\"BT-208 GNSS antenna specification sheet with frequency bands, gain, VSWR, LNA gain, connector type, and IP67 rating\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_ddd2bb70-efe5-405e-a269-bd160e377f4a.png?v=1783590334\"\u003e\u003cp\u003eKey electrical and mechanical specs are summarized for quick integration into RTK, inspection, and deformation-monitoring systems.\u003c\/p\u003e\n\u003cimg alt=\"Infographic highlighting common problems with single-band GNSS antennas, plus BT-208 outline and mounting diagram\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_9664865f-5962-47b1-8400-f09d86a8f1ec.png?v=1783590345\"\u003e\u003cp\u003eMulti-frequency reception helps reduce common issues like poor positioning accuracy and unstable trajectories in complex environments.\u003c\/p\u003e\n\u003cimg alt=\"Feature icons for wide use, multi-use, 3.3–12 V input, up to 38±2 dB LNA gain, IP67 waterproofing, and quality control\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_33067829-4d5c-4241-ba2d-2c3f55f9d51f.png?v=1783590356\"\u003e\u003cp\u003eHigh gain, low noise amplification, and IP67 sealing help maintain dependable reception in demanding outdoor conditions.\u003c\/p\u003e\n\u003cimg alt=\"Material and electronics graphic for the antenna radome and internal LNA, emphasizing durability and stable signal output\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_cfe96937-6ea3-4d14-a2c1-bc4b2531780b.png?v=1783590367\"\u003e\u003cp\u003eDurable radome materials and a low-noise amplifier design support stable signal output for precise positioning.\u003c\/p\u003e\n\u003cimg alt=\"Operating voltage 3.3–12 V and product dimensions graphic showing 100 mm diameter and 55 mm height\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_aa83ad85-7316-4615-a849-f3a5b422104e.png?v=1783590376\"\u003e\u003cp\u003eCompact Φ100×55 mm form factor fits common survey mounts while supporting a wide 3.3–12 V operating range.\u003c\/p\u003e\n\u003cimg alt='Close-ups of TNC-K connector, 5\/8\"-11 UNC mounting thread, and antenna housing design details' loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_6682eb08-5311-4c88-859d-1f5634d2630f.png?v=1783590386\"\u003e\u003cp\u003eStandard TNC-K connectivity and a 5\/8\"-11 UNC mount make installation straightforward on survey poles and fixed stations.\u003c\/p\u003e\n\u003cimg alt=\"Comparison chart of Beitian antenna advantages versus other antennas, covering performance, QC, customization, and support\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_10072397-3bfe-41d1-b569-4aca2afa9860.png?v=1783590396\"\u003e\u003cp\u003eA clear breakdown of quality control, testing, customization support, and service expectations versus typical single-frequency options.\u003c\/p\u003e\n\u003cimg alt=\"Application examples with GNSS antennas mounted on vehicles for driving test training and unmanned vehicle positioning\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_0ea7d7b3-12e6-4ffe-92ea-d4af87b560df.png?v=1783590407\"\u003e\u003cp\u003eVehicle-mount use cases include training fleets and autonomous platforms that need consistent positioning in motion.\u003c\/p\u003e\n\u003cimg alt=\"Precision agriculture use case with roof-mounted antenna, plus product list including BT-208 antenna and accessory package\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_c33818d3-069f-4e82-80e3-2b73a9a47e2b.png?v=1783590417\"\u003e\u003cp\u003ePackage contents focus on the BT-208 antenna, with optional feeder-package accessories available depending on connector needs.\u003c\/p\u003e\n\u003cimg alt=\"Accessory package list featuring BT-M90SD and BT-M110SLD feeder packages with SMA or TNC and 3–5 m cable options\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-RTK-Intelligent-Inspection-Deformation-Monitoring_f1d9ee62-5ec3-4449-a943-e54592b2c579.png?v=1783590426\"\u003e\u003cp\u003eOptional feeder packages can be selected with SMA or TNC connectors, and cable length can be customized on request.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Beitian","offers":[{"title":"BT-208","offer_id":53341007184096,"sku":"BT-208-1","price":131.14,"currency_code":"USD","in_stock":true},{"title":"BT-M110SLD-Magnetic Base","offer_id":53341007216864,"sku":"BT-208-2","price":33.64,"currency_code":"USD","in_stock":true},{"title":"BT-M90SD-Magnetic Base","offer_id":53341007249632,"sku":"BT-208-3","price":27.14,"currency_code":"USD","in_stock":true},{"title":"BT-M110SLB-aluminium  Base","offer_id":53341007282400,"sku":"BT-208-4","price":46.64,"currency_code":"USD","in_stock":true},{"title":"5m TNC-J SMA-J","offer_id":53341007315168,"sku":"BT-208-5","price":27.14,"currency_code":"USD","in_stock":true},{"title":"5m TNC-J TNC-J","offer_id":53341007347936,"sku":"BT-208-6","price":27.14,"currency_code":"USD","in_stock":true},{"title":"3m TNC-J SMA-J","offer_id":53341007380704,"sku":"BT-208-7","price":24.54,"currency_code":"USD","in_stock":true},{"title":"3m TNC-J TNC-J","offer_id":53341007413472,"sku":"BT-208-8","price":24.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/3_b9fb18f7-52f5-423f-bf14-0241e7a13737.png?v=1783572204","url":"https:\/\/rcdrone.top\/zh\/products\/beitian-bt-208-antenna","provider":"RCDrone","version":"1.0","type":"link"}