{"product_id":"beitian-bt-47n-antenna","title":"Beitian BT-47N 3.3-12V RTK Multi-Frequency GNSS Survey Antenna GPS\/GLONASS\/BDS\/Galileo TNC-K","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Beitian BT-47N is a multi-frequency GNSS measurement\/survey antenna designed for use with a variety of satellite navigation receivers. It supports BDS, GPS, GLONASS, and Galileo signals and is specified for applications such as geodetic surveying and mapping, waterway mapping, precision agriculture, and marine\/oceanographic surveying.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReceives multi-system, multi-frequency GNSS signals: BDS B1\/B2\/B3, GPS L1\/L2, GLONASS L1\/L2, GALILEO E1\/E5b\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.3-12.0 V\u003c\/li\u003e\n\u003cli\u003eLow noise figure: ≤ 2 dB\u003c\/li\u003e\n\u003cli\u003eLow VSWR: ≤ 2 (also listed as input VSWR ≤ 2.0)\u003c\/li\u003e\n\u003cli\u003eRight-hand circular polarization (RHCP)\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof rating\u003c\/li\u003e\n\u003cli\u003eMechanical mount: 5\/8\"-11 UNC thread, thread depth 20 mm\u003c\/li\u003e\n\u003cli\u003eIncludes a waterproof pressure balancing valve\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-47N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported GNSS \/ Bands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBDS B1\/B2\/B3; GPS L1\/L2; GLONASS L1\/L2; GALILEO E1\/E5b\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 dBi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna AR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 3.0 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase center error\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 2 mm\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\/output impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVSWR\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3-12.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating\/supply current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 45 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLNA gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 ± 2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise figure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 2 dB\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\u003eAntenna size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDia 100 x 47 mm\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 to +70 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-55 to +85 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMount thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11 UNC, thread depth 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLabel (as printed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBeitian; MODEL: BT-47N; P\/N: J2504021111S; MADE IN CHINA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGeodetic surveying and mapping\u003c\/li\u003e\n\u003cli\u003eWaterway mapping\u003c\/li\u003e\n\u003cli\u003eRTK measurements\u003c\/li\u003e\n\u003cli\u003ePrecision agriculture\u003c\/li\u003e\n\u003cli\u003eMarine\/oceanographic surveys\u003c\/li\u003e\n\u003cli\u003eUnmanned vehicles\u003c\/li\u003e\n\u003cli\u003eSmart driving test\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor product selection help (connector\/base option matching) or integration support with GNSS receivers, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cp\u003eItems depend on the selected option. The product list indicates the following package variants (each shown as x1):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBT-47N antenna\u003c\/li\u003e\n\u003cli\u003eAntenna large base, TNC connector, default 5 meter feeder\u003c\/li\u003e\n\u003cli\u003eAntenna large base, SMA connector, default 5 meter feeder\u003c\/li\u003e\n\u003cli\u003eAntenna small base, TNS connector, default 5 meter feeder\u003c\/li\u003e\n\u003cli\u003eAntenna small base, SMA connector, default 5 meter feeder\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWire length joints can be customized (configuration noted as reference-only and based on customer needs).\u003c\/p\u003e\u003ch2\u003eAvailable Options (Shopify)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel: BT-47N; BT-M110SLD-Magnetic Mounting; BT-M110SLB-Metal Mounting; BT-M90SD\u003c\/li\u003e\n\u003cli\u003eCable\/adapter options: 5m TNC-J SMA-J; 5m TNC-J TNC-J\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Beitian BT-47N RTK multi-frequency GNSS survey antenna overview with key specs and supported constellations\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS.png?v=1783588459\"\u003e\u003cp\u003eDesigned for RTK measurement and surveying, the BT-47N supports GPS, GLONASS, BDS, and Galileo multi-frequency signals.\u003c\/p\u003e\n\u003cimg alt=\"BT-47N GNSS antenna specification table listing supported bands, gain, polarization, VSWR, voltage, and IP67 rating\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_488b41b5-772f-48d7-a9c1-0ceb19aa18ac.png?v=1783588468\"\u003e\u003cp\u003eKey electrical and RF specifications are summarized for quick receiver matching, including operating voltage, LNA gain, and waterproof rating.\u003c\/p\u003e\n\u003cimg alt=\"BT-47N antenna mechanical drawing with diameter\/height dimensions, mounting hole pattern, and connector placement\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_1be069ba-cd9d-4a37-a9d0-1aa2d84c8b67.png?v=1783588478\"\u003e\u003cp\u003eUse the dimensioned drawing to confirm clearance, mounting layout, and connector orientation before installation.\u003c\/p\u003e\n\u003cimg alt=\"Infographic comparing common single-band GNSS antenna issues like poor positioning accuracy and weak signal reception\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_3aaee57d-e79a-48f6-8fa7-b2f8bd3e8c92.png?v=1783588487\"\u003e\u003cp\u003eMulti-frequency reception helps reduce common single-band limitations in challenging environments.\u003c\/p\u003e\n\u003cimg alt=\"Feature highlights for BT-47N including multi-frequency reception, operating voltage range, materials, and stable signal reception\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_dcca719e-0230-4576-9b8b-0b240251e3fd.png?v=1783588497\"\u003e\u003cp\u003eEngineered for consistent performance across demanding surveying, mapping, and field deployments.\u003c\/p\u003e\n\u003cimg alt=\"Materials and housing design graphic showing engineering plastic upper shell and aluminum alloy lower shell\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_d9e838cb-98f6-472e-874b-6c1358b94503.png?v=1783588506\"\u003e\u003cp\u003eA durable housing pairs an engineering-plastic radome with an aluminum-alloy base for rugged outdoor use.\u003c\/p\u003e\n\u003cimg alt=\"LNA gain graphic indicating up to 40±2 dB for stable GNSS signal amplification in the BT-47N antenna\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_294ab70d-7eda-4233-b785-327847598b97.png?v=1783588516\"\u003e\u003cp\u003eHigh LNA gain supports stable amplification for cleaner GNSS signal output.\u003c\/p\u003e\n\u003cimg alt=\"Operating voltage 3.3–12V graphic and BT-47N product dimensions diagram showing 100 mm diameter by 47 mm height\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_7a9db340-6934-4cfa-9e2e-caaeff4f8586.png?v=1783588532\"\u003e\u003cp\u003eWide 3.3–12V input and a compact 100×47 mm form factor make integration easier across platforms.\u003c\/p\u003e\n\u003cimg alt='Close-up component callouts: TNC-K connector, waterproof pressure balancing valve, and 5\/8\"-11 UNC mounting thread' loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_35482db8-85bf-493a-b2f3-fdc1d71f89f9.png?v=1783588542\"\u003e\u003cp\u003eConnector, vent valve, and 5\/8\"-11 UNC mount details help confirm compatibility with your mast or base.\u003c\/p\u003e\n\u003cimg alt=\"Product display of BT-47N GNSS antenna on a base with attached coax cable plus underside view of the mounting base\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_f111caa4-214c-4434-b5ea-51862a6b60f1.png?v=1783588551\"\u003e\u003cimg alt=\"BT-47N antenna views (top, side, bottom) plus application scenarios icons for agriculture, RTK, UAV, mapping, and marine\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_6848dc41-5e92-4d7c-95ad-b123ced2583e.png?v=1783588562\"\u003e\u003cp\u003eSuitable for precision agriculture, RTK measurements, unmanned vehicles, and marine or waterway mapping workflows.\u003c\/p\u003e\n\u003cimg alt=\"Package options list for BT-47N antenna showing large\/small base variants and TNC or SMA connector choices with 5 m cable\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-3V-12V-Autonomous-Driving--ADAS-CORS-RTK-GNSS_be03edeb-3761-4acc-9768-4531c7dd2a56.png?v=1783588571\"\u003e\n\u003c\/div\u003e","brand":"Beitian","offers":[{"title":"BT-47N","offer_id":53341023043808,"sku":"BT-47N-1","price":141.54,"currency_code":"USD","in_stock":true},{"title":"BT-M110SLD-Magnetic Mounting","offer_id":53341023076576,"sku":"BT-47N-2","price":33.64,"currency_code":"USD","in_stock":true},{"title":"BT-M110SLB-Metal Mounting","offer_id":53341023109344,"sku":"BT-47N-3","price":46.64,"currency_code":"USD","in_stock":true},{"title":"BT-M90SD","offer_id":53341023142112,"sku":"BT-47N-4","price":29.74,"currency_code":"USD","in_stock":true},{"title":"5m TNC-J SMA-J","offer_id":53341023174880,"sku":"BT-47N-5","price":141.54,"currency_code":"USD","in_stock":true},{"title":"5m TNC-J TNC-J","offer_id":53341023207648,"sku":"BT-47N-6","price":141.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/6_a7e92951-c87e-49cb-b21d-bf52abe695f3.png?v=1783519949","url":"https:\/\/rcdrone.top\/uk\/products\/beitian-bt-47n-antenna","provider":"RCDrone","version":"1.0","type":"link"}