{"product_id":"beitian-bt-t30a-gnss-antenna","title":"Beitian BT-T30A\/BT-T30B External GNSS Antenna TNC-K, Dual Band L1\/L2 or L1\/L5 for Marine \u0026 Instruments","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eBeitian BT-T30A \/ BT-T30B is an external GNSS antenna designed for marine vessel installations and industrial instruments. It supports multi-constellation reception with dual-band options (model-dependent) and integrates an LNA for signal amplification.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExternal GNSS antenna with sealed design (dustproof and waterproof as stated).\u003c\/li\u003e\n\u003cli\u003eDual-band options by model: BT-T30A (L1\/L2) or BT-T30B (L1\/L5).\u003c\/li\u003e\n\u003cli\u003eIntegrated LNA gain: 4012 dB (Only LNA).\u003c\/li\u003e\n\u003cli\u003ePolarization: RHCP (Right-handed circular).\u003c\/li\u003e\n\u003cli\u003e360  horizontal plane coverage angle.\u003c\/li\u003e\n\u003cli\u003eTNC-K connector interface.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBT-T30A; BT-T30B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking mode \/ Frequency range (BT-T30A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGPS L1\/L2; GLONASS L1\/L2; BDS B1I\/B2I\/B2b; GALILEO E1\/E5b\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking mode \/ Frequency range (BT-T30B)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGPS: L1, L1C, L5C; BDS: B1I, B1C, B2a; Galileo: E1, E5a; QZSS: L5; IRNSS: S-L5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5.0 dBi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLNA gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4012 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\u0026lt;2.5 dB (Only LNA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePassband ripple\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.0 dB (Only LNA)\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\u0026lt;2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput VSWR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;2.0 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImpedance \/ Output impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e509\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePolarization mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRHCP \/ Right-handed circular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAntenna axial ratio \/ Axis ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;4 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorizontal plane 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\u003eFrequency temperature coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.7~10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e425 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector \/ Interface form\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\u003e666.5*46 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4150 g\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~+85 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-40 C~+85 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWet degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40%~95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStructural diagram notes (unit: mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e666.511; 4611; 76.311; M18*1; TNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e1 x BT-T30A GPS antenna (as stated in packing list)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMarine vessel GNSS antenna installations\u003c\/li\u003e\n\u003cli\u003eIndustrial instruments and equipment\u003c\/li\u003e\n\u003cli\u003eRobots\u003c\/li\u003e\n\u003cli\u003eBase stations\u003c\/li\u003e\n\u003cli\u003eTiming positioning\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor model selection help (BT-T30A vs BT-T30B) or integration support, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Beitian BT-T30A\/BT-T30B external GNSS antenna model comparison with supported bands and key specs\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine.png?v=1783479414\"\u003e\u003cimg alt=\"Beitian BT-T30A\/BT-T30B external GNSS antenna product view with TNC-K mount and protective cap\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_dd80dbed-8ca1-4481-b256-d0c633f3e870.png?v=1783479423\"\u003e\u003cp\u003eDesigned for marine and industrial installs, the BT‑T30 series uses a rugged external housing and a TNC‑K interface for secure mounting.\u003c\/p\u003e\n\u003cimg alt=\"BT-T30A specifications and structural dimensions with 360° coverage, RHCP polarization, and TNC-K interface\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_24b9c020-bde7-4298-a781-59dfcda8cb9d.png?v=1783479433\"\u003e\u003cp\u003eKey operating specs and mechanical dimensions are provided to help plan placement, clearance, and cable routing.\u003c\/p\u003e\n\u003cimg alt=\"Sealed external GNSS antenna highlights with strong signal capture, lightweight housing, and 2.7–10V power range\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_66096a5b-9074-4bd8-85e4-47e164094ba2.png?v=1783479444\"\u003e\u003cimg alt=\"Close-up of antenna housing and TNC-K connector with sealed design and included protective glue nut cap\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_abd2b2d1-00e2-4fb8-b887-4510cdfea55a.png?v=1783479454\"\u003e\u003cp\u003eA sealed, dustproof\/waterproof-style enclosure pairs with the TNC‑K connector, while the protective cap helps keep the fitting clean when unused.\u003c\/p\u003e\n\u003cimg alt=\"Application collage for GNSS antenna use in instruments, robots, timing positioning systems, and base stations\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_2d54f340-a612-4a38-9668-ebb2cfdc2b3d.png?v=1783479466\"\u003e\u003cp\u003eSuitable for robots, industrial instruments, base-station setups, and timing\/positioning applications requiring reliable GNSS reception.\u003c\/p\u003e\n\u003cimg alt=\"Packing list and product parameters table for BT-T30A GNSS antenna, including frequency ranges, gain, and VSWR\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_201c13ca-b9e9-4fd0-907d-af99c1d530fa.png?v=1783479475\"\u003e\u003cp\u003eThe package includes one BT‑T30A antenna, with core parameters summarized for quick integration checks.\u003c\/p\u003e\n\u003cimg alt=\"LNA specs and environmental ratings table with additional product views for the external GNSS antenna\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-L1L5-GNSS-GPS-BDS-Dual-Band-Antenna-for-Marine_41c34e2c-9517-402e-9069-9dede0d26807.png?v=1783479486\"\u003e\n\u003c\/div\u003e","brand":"Beitian","offers":[{"title":"BT-T30A (L1+L2)","offer_id":53332482818272,"sku":"T-T30TKB-1","price":138.32,"currency_code":"USD","in_stock":true},{"title":"BT-T30B (L1+L5)","offer_id":53332482851040,"sku":"T-T30TKB-2","price":138.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/BT-T30A-E.png?v=1783477361","url":"https:\/\/rcdrone.top\/pt\/products\/beitian-bt-t30a-gnss-antenna","provider":"RCDrone","version":"1.0","type":"link"}