{"product_id":"tx490-blg-120-490mhz-8dbi-high-gain-omnidirectional-fiberglass-antenna-n-male","title":"Ebyte TX490-BLG-120 490MHz 8dBi High Gain Omnidirectional Fiberglass Outdoor Antenna 50Ω N-Male","description":"\u003c!-- 1. AI 一句话参数摘要 --\u003e\n\u003cp\u003eThe Ebyte TX490-BLG-120 is an industrial-grade high-gain omnidirectional outdoor fiberglass antenna engineered for 470~510MHz (490MHz Sub-1GHz \/ LoRa \/ Wireless Metering) communications, delivering high 8dBi gain with 50Ω impedance and ≤2.0 VSWR via a standard N-Male (N-J) connector, featuring a 1200mm heavy-duty IP67 waterproof, UV-proof, and wind-resistant fiberglass radome for wireless base stations, IoT gateways, LoRaWAN concentrators, and long-range industrial telemetry radios.\u003c\/p\u003e\n\u003c!-- 2. 核心技术优势 --\u003e\n\u003ch2\u003eKey Features \u0026amp; Advantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-High 8dBi Peak Gain \u0026amp; Extended Range\u003c\/strong\u003e: Built with a 1200mm high-efficiency multi-element collinear dipole array, providing superior signal concentration along the horizontal plane (360° horizontal × 80° vertical beamwidth) to bridge long-distance Sub-1GHz wireless telemetry links.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for 470~510MHz Sub-1GHz \u0026amp; LoRa Bands\u003c\/strong\u003e: Professionally tuned for center frequency 490MHz across the 470MHz~510MHz spectrum, ideal for wireless automated meter reading (AMR), smart water\/gas metering, and industrial wireless radio transceivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Weatherproof Fiberglass (FRP) Radome\u003c\/strong\u003e: Reinforced fiberglass composite shell with UV stabilization, high wind resistance, and IP67 hermetic sealing, resisting rain penetration, moisture, salt fog, and outdoor thermal cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard N-Male (N-J) Interface \u0026amp; 100W High Power Rating\u003c\/strong\u003e: Features a robust nickel-plated brass N-J connector supporting up to 100W continuous RF power transmission with minimal connection insertion loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Temperature Resilience (-40°C to +85°C)\u003c\/strong\u003e: Reliable continuous outdoor operation across mountain repeaters, coastal installations, and hot industrial utility rooftops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 3. 核心规格参数表 --\u003e\n\u003ch2\u003eCore Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 20px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left; border: 1px solid #e0e0e0;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0; width: 28%;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSpecification Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eCenter Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e490 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e470 ~ 510 MHz (Sub-1GHz ISM \/ LoRa Band)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eAntenna Gain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e8.0 dBi (High Peak Gain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eVoltage Standing Wave Ratio (VSWR)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e≤ 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eRadiation Pattern \u0026amp; Polarization\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eOmnidirectional (360° Horizontal Beamwidth \/ 80° Vertical Beamwidth) \/ Vertical Polarization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eMax Power Handling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e100 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eN-J (N-Type Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eAntenna Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1200 mm (1.2m Length) × Φ20 mm (Diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eRadome Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eHigh-Strength Fiberglass (FRP Composite)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e350g (±10g Net Weight) \/ 1000g (Packaged Shipping Weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 4. 多 SKU 选型指南对比表 --\u003e\n\u003ch2\u003eProduct Selection Guide\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 20px 0;\"\u003e\n\u003cp style=\"font-size: 14px; font-weight: 600; color: #cf222e; margin-bottom: 10px;\"\u003e\u003cstrong\u003eNotice for Selection: Please verify that your radio transmitter or gateway operates in the 470~510MHz (490MHz nominal) frequency band prior to placing an order.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; text-align: center; border: 1px solid #e0e0e0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eModel (SKU)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eCenter Frequency\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eFrequency Range\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003ePeak Gain\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eLength\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eConnector\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003ePrimary Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eTX490-BLG-120\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e490 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e470 ~ 510 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e8.0 dBi\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1200 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eN-J (N Male)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eLong-Distance Sub-1GHz Base Stations, LoRa Gateways, AMR Water\/Gas Metering Hubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 5. 详情页切片大图组 --\u003e\n\u003cdiv class=\"ebyte-detail-images\" style=\"margin-bottom: 30px;\"\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_01_3c6b0428-cb66-4db4-b812-eaed57741da3.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 1\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_02_04aacd32-c6bc-45a5-8bd3-84054df70adc.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 2\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_03_209945ef-75e6-42bb-a1ee-1c301e720787.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 3\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_04_7cec427b-1e86-4375-8f68-65fbd1522b34.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 4\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_05_3d8b46ba-4c72-4d5a-97d7-c72644fd0af3.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 5\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_06_1035a96e-cd3a-4433-a46b-87df30f044d1.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 6\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_07_d90492cc-e85c-45dd-95bc-87be1edbe6e5.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 7\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_08_1021b0ef-5543-418b-89b8-d04f86c1b341.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 8\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_09_085964c8-5efa-4d66-9bf6-bd726f068d5e.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 9\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_10_946914f6-6ae0-426d-b138-7e32aea07135.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 10\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_11_93fb8dda-30ad-4f25-9ace-c341f9b23470.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 11\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_12_6f6291d6-80d9-4dc3-8afd-8634f7dc6cf5.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 12\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_13_65837242-70ec-4e37-af6a-63ac21e26df5.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 13\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_01_41f0f0ae-c7e3-4542-a4db-f6b6340747d8.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 14\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_02_bd47d766-a39b-456a-8f05-535b69af5d79.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 15\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_03_42100e49-a257-4876-bd7e-811480a1148c.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 16\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_04_691794f9-908c-4600-8644-f6c2581d237a.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 17\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_05_0cbfc3a4-7506-4d3a-9c46-91bd439195ac.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 18\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_06_892cf409-f691-4b18-8e2f-cfa7a43dd8c9.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 19\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_07_dc3efd4a-8b3c-4906-8821-74eb1a7ef7ed.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 20\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_08_3a490e7f-5400-4217-821a-b9d242e620e8.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 21\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/2_09_dbd9a288-5edf-42e1-b07e-540cecb00c80.jpg?v=1793865995\" alt=\"Ebyte TX490-BLG-120 490MHz 8dBi Omnidirectional Fiberglass Antenna Feature Detail 22\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 6. 工业级安装与接线说明 --\u003e\n\u003ch2\u003eIndustrial Installation \u0026amp; Wiring\u003c\/h2\u003e\n\u003cp\u003eThe TX490-BLG-120 high-gain antenna is 1.2 meters long and engineered for outdoor mast, tower, or wall bracket deployment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMast Mounting \u0026amp; Clamping\u003c\/strong\u003e: Use heavy-duty U-bolt mounting brackets to fix the antenna base onto a vertical metallic or composite pole (recommended pole diameter Φ35mm~50mm). Mount vertically for proper vertical polarization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF Connector Connection\u003c\/strong\u003e: Thread the N-J (N-Male) connector onto a standard low-loss 50 Ω feeder cable (e.g., LMR-400, 50-5, or 50-7 coaxial cable) terminated with an N-K (N-Female) jack. Hand-tighten securely and wrap with waterproof self-fusing silicone tape for full outdoor weatherproofing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight \u0026amp; Line-of-Sight Clearance\u003c\/strong\u003e: Elevate the 1200mm antenna above surrounding metal structures, trees, and buildings to maximize 360-degree horizontal line-of-sight propagation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightning Surge Protection\u003c\/strong\u003e: For rooftop or outdoor tower installations, install a 50 Ω N-type gas tube surge arrestor inline and bond to the building ground busbar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 7. 真实工业物联网使用场景 --\u003e\n\u003ch2\u003ePractical Application Scenarios\u003c\/h2\u003e\n\u003ch3\u003e1. Smart City AMR Automated Meter Reading \u0026amp; Wireless Metering Concentrators (470~510MHz)\u003c\/h3\u003e\n\u003cp\u003eDeploys as the central collection antenna on municipal utility collector hubs, aggregating real-time consumption data from thousands of residential water, electricity, and gas smart meters across urban and suburban districts.\u003c\/p\u003e\n\u003ch3\u003e2. Long-Range Sub-1GHz LoRaWAN Gateway \u0026amp; Industrial Radio Repeaters\u003c\/h3\u003e\n\u003cp\u003eProvides high 8dBi gain to boost transmission distance and penetrate deep foliage\/concrete in smart agriculture, forestry telemetry, and environmental IoT monitoring networks.\u003c\/p\u003e\n\u003ch3\u003e3. Oilfield, Pipeline \u0026amp; Industrial SCADA Telemetry (Ebyte DTU Radios)\u003c\/h3\u003e\n\u003cp\u003ePairs with Ebyte Sub-1GHz wireless serial data transceivers (such as E62\/E90 DTU series) to establish long-distance point-to-point and point-to-multipoint industrial telemetry links across oilfields, mines, and river dams.\u003c\/p\u003e\n\u003ch3\u003e4. Solar Farm \u0026amp; Renewable Energy Storage Site Telemetry\u003c\/h3\u003e\n\u003cp\u003eInstalled on solar plant central monitoring towers to communicate with string inverters and weather stations over vast geographical areas with high RF noise immunity.\u003c\/p\u003e\n\u003c!-- 8. 常见技术与选型问答 --\u003e\n\u003ch2\u003eFAQ Section\u003c\/h2\u003e\n\u003ch3\u003e1. Why choose an 8dBi 1200mm fiberglass antenna for 490MHz \/ 470MHz Sub-1GHz applications?\u003c\/h3\u003e\n\u003cp\u003eAn 8dBi high gain fiberglass antenna significantly compresses the vertical radiation beam into a wide, powerful 360-degree horizontal disc, vastly extending line-of-sight communication distance over long-range outdoor terrains compared to 2dBi~3dBi compact whip antennas.\u003c\/p\u003e\n\u003ch3\u003e2. What is the difference between 490MHz fiberglass antennas and 433MHz \/ 4G antennas?\u003c\/h3\u003e\n\u003cp\u003eThe TX490-BLG-120 is custom-tuned specifically for the 470MHz~510MHz band (nominal 490MHz), common in Asian and European Sub-1GHz wireless metering and private telemetry networks. It provides lower VSWR and maximum radiation efficiency on 470~510MHz compared to standard 433MHz or 4G LTE broadband antennas.\u003c\/p\u003e\n\u003ch3\u003e3. How should a 1.2m fiberglass antenna be mounted to resist gale-force winds?\u003c\/h3\u003e\n\u003cp\u003eDue to the 1200mm length, secure the base firmly with dual heavy-duty U-bolt clamps onto a sturdy vertical steel mast. Ensure the antenna is plumb vertical and that all coaxial connections are sealed with UV-resistant waterproofing tape.\u003c\/p\u003e\n\u003ch3\u003e4. Can this antenna connect to SMA-based LoRa modules and DTU radio modems?\u003c\/h3\u003e\n\u003cp\u003eYes. The antenna features a standard N-J (N-Male) connector. You can connect it to any SMA-equipped LoRa module, gateway, or DTU radio using a low-loss N-Female to SMA-Male (N-K to SMA-J) coaxial jumper cable (such as RG-58 or LMR-200).\u003c\/p\u003e","brand":"Ebyte Official Store - IoT Module Manufacturer","offers":[{"title":"TX490-BLG-120","offer_id":48850549997773,"sku":"TX490-BLG-120","price":31.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/1_1250b0eb-e7d3-4077-80e1-d11ce49ef90f.jpg?v=1793866038","url":"https:\/\/ebyteiot.com\/es\/products\/tx490-blg-120-490mhz-8dbi-high-gain-omnidirectional-fiberglass-antenna-n-male","provider":"Ebyte Official Store - IoT Module Manufacturer","version":"1.0","type":"link"}