{"product_id":"beitian-bt603-gnss-antenna","title":"Beitian BT-602\/BT-603 Helical GNSS Antenna SMA-J for Drone RTK GPS\/BeiDou\/GLONASS\/Galileo","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Beitian BT-602 \/ BT-603 is a helical GNSS antenna designed for drone RTK and other satellite navigation receiver applications. Two models are available with different supported satellite bands\/systems: BT-602 and BT-603.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour-system GNSS signal support (model-dependent working modes)\u003c\/li\u003e\n\u003cli\u003eRight-hand circular polarization (RHCP)\u003c\/li\u003e\n\u003cli\u003e360° horizontal coverage angle\u003c\/li\u003e\n\u003cli\u003eSMA-J connector, 50 Ω port impedance\u003c\/li\u003e\n\u003cli\u003eCompact size and lightweight design (Φ40*84.5 mm, ≤60 g)\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.3-12.0 V; operating current: ≤50 mA\u003c\/li\u003e\n\u003cli\u003eUV-resistant PC material (UV Material)\u003c\/li\u003e\n\u003cli\u003eMounting: 3 x M2.5 threaded holes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ch3\u003eGNSS Working Modes (by model)\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eWorking mode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBT-602\u003c\/td\u003e\n\u003ctd\u003e\n        GPS L1\/L2; GLONASS L1\/L2; BDS B1I\/B1C\/B2I\/B2a\/B2b\/B3I; GALILEO E1\/E5b; L-Band\n      \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBT-603\u003c\/td\u003e\n\u003ctd\u003e\n        GPS L1\/L2\/L5; BDS B1\/B2\/B3; GLONASS L1\/L2\/L3; GALILEO E1\/E5a\/E5b\/E6; ABAS L1\/L5; QZSS L1\/L2\/L5\/L6; IRNSS L5; L-Band\n      \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eAntenna \/ Electrical \/ Environmental\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain (dBi)\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLNA Gain (dB)\u003c\/td\u003e\n\u003ctd\u003e36±2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise figure (dB)\u003c\/td\u003e\n\u003ctd\u003e≤2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVSWR\u003c\/td\u003e\n\u003ctd\u003e≤2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput VSWR\u003c\/td\u003e\n\u003ctd\u003e≤2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort impedance\u003c\/td\u003e\n\u003ctd\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarization\u003c\/td\u003e\n\u003ctd\u003eRight-hand circular polarization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIn-band flatness (dB)\u003c\/td\u003e\n\u003ctd\u003e±2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage (V)\u003c\/td\u003e\n\u003ctd\u003e3.3-12.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating current (mA)\u003c\/td\u003e\n\u003ctd\u003e≤50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifferential propagation delay (ns)\u003c\/td\u003e\n\u003ctd\u003e≤5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna AR (dB)\u003c\/td\u003e\n\u003ctd\u003e≤3\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\u003ePhase center error (mm)\u003c\/td\u003e\n\u003ctd\u003e±2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°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\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eMechanical\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector type\u003c\/td\u003e\n\u003ctd\u003eSMA-J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna size\u003c\/td\u003e\n\u003ctd\u003eΦ40*84.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna weight\u003c\/td\u003e\n\u003ctd\u003e≤60 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct dimension (detailed)\u003c\/td\u003e\n\u003ctd\u003eΦ40.0 ±0.3 mm; length 84.5 ±0.3 mm; Φ26.6 ±0.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e3 x M2.5 threaded holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cp\u003ePackage contents vary by selection. The following configurations are shown:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle spiral set:\u003c\/strong\u003e BT-603 Four-Star Full Range x1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle spiral set with base:\u003c\/strong\u003e BT-603 + BT-M61AJ5 x1 + SMA-J connector 5-meter cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral set meal:\u003c\/strong\u003e BT-902G2 + BT-603 + SMA Male to Female Cable + Two single-ended connecting wires + PL2303HXD USB Debug Cable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDrones\u003c\/li\u003e\n\u003cli\u003eHandheld terminal devices\u003c\/li\u003e\n\u003cli\u003eSmall RTK equipment\u003c\/li\u003e\n\u003cli\u003eTracking and positioning\u003c\/li\u003e\n\u003cli\u003eAutonomous driving (positioning systems)\u003c\/li\u003e\n\u003cli\u003eScientific research testing\u003c\/li\u003e\n\u003cli\u003eWireless communication related positioning setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor integration and compatibility questions (connector\/cable selection, receiver matching, or model choice BT-602 vs BT-603), 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-602\/BT-603 helical GNSS antenna overview with model band table and drone RTK use\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO.png?v=1783596712\"\u003e\u003cp\u003eBuilt for drone RTK and other positioning receivers, the BT-602\/BT-603 helical antenna supports multi-band GNSS (model dependent) with RHCP polarization.\u003c\/p\u003e\n\u003cimg alt=\"Beitian brand advantages and antenna specification table for multi-system GNSS reception\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_bf545170-0286-40a3-b850-fc39d0a729b2.png?v=1783596721\"\u003e\u003cp\u003eSpecifications and support options are summarized for quick selection between BT-602 and BT-603 configurations.\u003c\/p\u003e\n\u003cimg alt=\"BT-602\/BT-603 specification table plus mechanical dimensions drawing for Φ40 mm helical antenna\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_1feda365-eb3d-4236-a0ec-9bb1f56b091c.png?v=1783596731\"\u003e\u003cimg alt=\"Multi-constellation GNSS coverage infographic for four-system full-band reception and 360° coverage\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_5f4e6c0c-a6ee-4c7a-af02-156a789e18cc.png?v=1783596741\"\u003e\u003cp\u003eMulti-constellation reception helps maintain stable tracking across GPS, BDS, GLONASS, GALILEO and other supported systems depending on the model.\u003c\/p\u003e\n\u003cimg alt=\"LNA gain highlight for GNSS antenna, stating LNA gain up to 36±2 dB and low-noise output\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_86b6363c-5a38-42c5-b08d-67fdac50527c.png?v=1783596750\"\u003e\u003cimg alt=\"Operating voltage range graphic for the antenna, showing 3.3–12 V compatibility and stable output\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_cf5c968e-f6f3-4ebc-84d9-1d3f7efc6f50.png?v=1783596759\"\u003e\u003cimg alt=\"Product size callout for helical GNSS antenna, Φ40×84.5 mm, with UV material and base detail\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_2f36e4a1-13bc-4d07-995a-5a740a19ac55.png?v=1783596777\"\u003e\u003cp\u003eCompact Φ40×84.5 mm housing keeps weight down while the UV-resistant shell supports long-term outdoor use.\u003c\/p\u003e\n\u003cimg alt=\"Close-ups of UV-resistant housing, SMA-J connector, and three M2.5 threaded mounting holes\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_19bb74ad-89ef-498a-800e-3601d5eafafa.png?v=1783596786\"\u003e\u003cp\u003eSMA-J connectivity and three M2.5 mounting points simplify integration into custom drone and RTK enclosures.\u003c\/p\u003e\n\u003cimg alt=\"Comparison chart: Beitian antenna benefits versus typical market antennas, focusing on signal and QC\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_bb3ae8e7-c7ec-41f0-930f-c301317a7ca4.png?v=1783596796\"\u003e\u003cimg alt=\"Application scenarios collage showing antenna on drones and use cases like tracking, autonomous driving, testing\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_44b995f1-a9fd-4a91-835a-0e3e33635e31.png?v=1783596807\"\u003e\u003cp\u003eCommon use cases include drones, small RTK equipment, tracking\/positioning systems, and research test setups.\u003c\/p\u003e\n\u003cimg alt=\"Gain test plot and RTK module connection schematic illustrating antenna integration in base\/rover setup\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_303a88b0-4f7a-471a-b082-768ceb1729fd.png?v=1783596816\"\u003e\u003cp\u003eWiring and test references help plan receiver integration, including base\/rover RTK positioning module connections.\u003c\/p\u003e\n\u003cimg alt=\"Package contents options for BT-603 sets, including SMA cable, base, connecting wires, and USB debug cable\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Beitian-High-Performance-3-18V-GPS-BEIDOU-GLONASS-GALILEO_73900bd1-7a0b-4b8a-8031-95a2baedd818.png?v=1783596824\"\u003e\u003cp\u003eChoose a single antenna, a set with base and 5 m SMA cable, or a full kit with receiver board and accessories based on your build.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Beitian","offers":[{"title":"BT-603-Four constellation full frequency","offer_id":53340939976928,"sku":"BT-603-1","price":83.54,"currency_code":"USD","in_stock":true},{"title":"BT-602-Four constellation multiple frequency","offer_id":53340940009696,"sku":"BT-603-2","price":73.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/1-_-E_ad642181-87fa-44b5-a6ca-3d835e230c81.png?v=1783566605","url":"https:\/\/rcdrone.top\/hi\/products\/beitian-bt603-gnss-antenna","provider":"RCDrone","version":"1.0","type":"link"}