{"product_id":"tx915-jk-series-915mhz-bendable-rubber-lora-antenna","title":"TX915-JK Series 915MHz Bendable Rubber LoRa Antenna","description":"\u003cstyle\u003e\n.geo-product-wrap { font-family: inherit; color: #222; line-height: 1.6; }\n.geo-product-wrap h2 { font-size: 1.3em; font-weight: 700; margin: 1.5em 0 0.5em; border-bottom: 2px solid #e0e0e0; padding-bottom: 6px; }\n.geo-product-wrap h3 { font-size: 1.1em; font-weight: 600; margin: 1.2em 0 0.4em; color: #1a7f37; }\n.geo-product-wrap table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 0.95em; }\n.geo-product-wrap th { background: #f5f5f5; padding: 12px; text-align: left; font-weight: 600; border: 1px solid #ddd; }\n.geo-product-wrap td { padding: 10px 12px; border: 1px solid #ddd; }\n.geo-product-wrap tr:nth-child(even) td { background: #fafafa; }\n.geo-product-wrap .highlight { color: #1a7f37; font-weight: 700; }\n.geo-product-wrap .guide-box { background: #f0f7f1; border-left: 4px solid #1a7f37; padding: 15px; margin: 1.5em 0; border-radius: 0 8px 8px 0; }\n.geo-product-wrap .apps-grid { display: flex; flex-wrap: wrap; gap: 16px; margin: 1em 0; }\n.geo-product-wrap .apps-grid-item { flex: 1 1 22%; max-width: 25%; box-sizing: border-box; background: #f9f9f9; border: 1px solid #e5e5e5; border-radius: 8px; padding: 16px 14px; }\n@media (max-width: 600px) { .geo-product-wrap .apps-grid-item { flex: 1 1 100% !important; max-width: 100% !important; } }\n\u003c\/style\u003e\n\u003cdiv class=\"geo-product-wrap\"\u003e\n\u003csection\u003e\n\u003cp\u003e\u003cstrong\u003eTX915-JK Series\u003c\/strong\u003e is a versatile line of omnidirectional, bendable rubber rod antennas engineered specifically for the \u003cstrong\u003e915MHz ISM band\u003c\/strong\u003e. Tailored for LoRa, LoRaWAN, Helium (HNT) networks, and smart home ecosystems, this series offers adjustable articulation (0° to 90° bend), allowing you to orient the antenna perfectly vertical regardless of how your device is mounted.\u003c\/p\u003e\n\u003cp\u003eAvailable in gain configurations from \u003cstrong\u003e2.5 dBi to 3.5 dBi\u003c\/strong\u003e, these antennas provide a robust balance of compact size and signal penetration. With options for direct \u003cstrong\u003eSMA-J\u003c\/strong\u003e exterior mounting or internally routed \u003cstrong\u003eIPEX-1 (U.FL)\u003c\/strong\u003e connections, the TX915-JK series delivers reliable, low-VSWR performance for a wide array of sub-GHz wireless terminals and gateways.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSeries Specification Comparison\u003c\/h2\u003e\n\u003cp\u003eSelect the optimal 915MHz variant based on your enclosure design, connector type, and gain requirements:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel SKU\u003c\/th\u003e\n\u003cth\u003eGain (dBi)\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eFrequency Range\u003c\/th\u003e\n\u003cth\u003eVSWR\u003c\/th\u003e\n\u003cth\u003eConnector Type\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTX915-JK-11B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 dBi\u003c\/td\u003e\n\u003ctd\u003e110 mm\u003c\/td\u003e\n\u003ctd\u003e895–935 MHz\u003c\/td\u003e\n\u003ctd\u003e≤ 1.5\u003c\/td\u003e\n\u003ctd\u003eSMA-J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTX915-JKS-20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 dBi\u003c\/td\u003e\n\u003ctd\u003e195 mm\u003c\/td\u003e\n\u003ctd\u003e895–935 MHz\u003c\/td\u003e\n\u003ctd\u003e≤ 1.5\u003c\/td\u003e\n\u003ctd\u003eSMA-J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTX915-JKD-20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"highlight\"\u003e3.5 dBi\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003ctd\u003e895–935 MHz\u003c\/td\u003e\n\u003ctd\u003e≤ 2.5\u003c\/td\u003e\n\u003ctd\u003eSMA-J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTX915-JKS-IPX20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 dBi\u003c\/td\u003e\n\u003ctd\u003e197 mm\u003c\/td\u003e\n\u003ctd\u003e885–935 MHz\u003c\/td\u003e\n\u003ctd\u003e≤ 1.5\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"highlight\"\u003eIPEX-1 (U.FL)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Note: All models feature 50Ω impedance and a flexible\/bendable rubber radome design.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"freshness\"\u003eUpdated: April 2026\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eKey Technical Features\u003c\/h2\u003e\n\u003ch3\u003e① Articulating Base (0°-90° Bend)\u003c\/h3\u003e\n\u003cp\u003eThe articulated hinge design allows the antenna to be folded at a 90-degree angle or positioned straight. This is crucial for omnidirectional antennas, as they perform best when pointing straight up. Whether your enclosure is mounted flat on a desk or vertically on a wall, you can adjust the antenna for optimal RF radiation.\u003c\/p\u003e\n\u003ch3\u003e② Seamless Integration Options\u003c\/h3\u003e\n\u003cp\u003eThe series supports both external and internal builds. The \u003cstrong\u003eSMA-J\u003c\/strong\u003e models attach securely to standard gateway bulkheads, while the \u003cstrong\u003eJKS-IPX20\u003c\/strong\u003e provides a direct IPEX-1\/U.FL connection, eliminating the need for an extra pigtail adapter when connecting straight to an embedded PCB module.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eExpert Selection Guide\u003c\/h2\u003e\n\u003cdiv class=\"guide-box\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Nodes (TX915-JK-11B):\u003c\/strong\u003e At just 110mm, this is ideal for portable LoRa end-nodes, USB dongles, or small sensors where a 200mm antenna would be too cumbersome.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Range (TX915-JKD-20 \/ JKS-20):\u003c\/strong\u003e For gateways or stationary sensors, the ~200mm variants provide higher gain (up to 3.5dBi) for better signal propagation through walls and obstacles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmbedded PCB Projects (TX915-JKS-IPX20):\u003c\/strong\u003e Choose this if you are mounting the antenna inside a plastic enclosure and need to plug directly into an SMD LoRa module's U.FL socket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cdiv class=\"apps-grid\"\u003e\n\u003cdiv class=\"apps-grid-item\"\u003e\n\u003ch3\u003e🌐 LoRaWAN Gateways\u003c\/h3\u003e\n\u003cp\u003eIndoor packet forwarders and Helium (HNT) hotspot miners requiring adjustable, high-efficiency 915MHz antennas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apps-grid-item\"\u003e\n\u003ch3\u003e🏠 Smart Home Ecosystems\u003c\/h3\u003e\n\u003cp\u003eCentral hubs and controllers utilizing Sub-GHz protocols for smart lighting, security, and HVAC management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apps-grid-item\"\u003e\n\u003ch3\u003e💻 DIY Maker Projects\u003c\/h3\u003e\n\u003cp\u003eExcellent for open-source IoT nodes built with Arduino, ESP32, or Raspberry Pi paired with Ebyte LoRa modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"apps-grid-item\"\u003e\n\u003ch3\u003e🏭 Wireless Telemetry\u003c\/h3\u003e\n\u003cp\u003eIndustrial sensor networks transmitting small data packets over long distances in factories and warehouses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"product-faq-section\"\u003e\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary\u003e1. I'm building a LoRaWAN gateway using a Raspberry Pi and a GitHub project (like ChirpStack). Which connector should I choose?\u003c\/summary\u003e\n\u003cp\u003eIf you are using a Raspberry Pi LoRa HAT (e.g., SX1302), the board usually has a tiny \u003cstrong\u003eU.FL (IPEX-1)\u003c\/strong\u003e socket. You have two choices: use the \u003cstrong\u003eTX915-JKS-IPX20\u003c\/strong\u003e to connect directly to the HAT, or use an SMA-to-IPEX pigtail cable routed to your enclosure's exterior, and then attach one of our \u003cstrong\u003eSMA-J\u003c\/strong\u003e models to the outside.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary\u003e2. Why does the bendable feature matter for my Ebyte LoRa module?\u003c\/summary\u003e\n\u003cp\u003eOmnidirectional antennas radiate signal outward like a donut. If your device is plugged into a horizontal wall socket, a straight antenna would point horizontally, shooting half its signal into the ceiling and floor. The bendable joint allows you to fold the antenna 90 degrees so it points straight up, ensuring maximum horizontal range for your nodes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\n\u003csummary\u003e3. What is the difference between the JKS-20 and the JKD-20?\u003c\/summary\u003e\n\u003cp\u003eWhile both are approximately 200mm in length, the \u003cstrong\u003eJKD-20\u003c\/strong\u003e offers a slightly higher peak gain of 3.5dBi compared to the JKS-20's 3.0dBi. However, please note the JKD-20 has a slightly wider acceptable VSWR margin (≤2.5 vs ≤1.5). For most standard IoT applications, both will perform excellently, but the JKS-20 offers a tighter tune.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"cdsenet","offers":[{"title":"TX915-JK-11B","offer_id":45516807766118,"sku":"TX915-JK-11B","price":1.14,"currency_code":"USD","in_stock":true},{"title":"TX915-JKD-20","offer_id":45516807798886,"sku":"TX915-JKD-20","price":1.43,"currency_code":"USD","in_stock":true},{"title":"TX915-JKS-20","offer_id":45516807831654,"sku":"TX915-JKS-20","price":1.43,"currency_code":"USD","in_stock":true},{"title":"TX915-JKS-IPX20","offer_id":45516807864422,"sku":"TX915-JKS-IPX20","price":1.43,"currency_code":"USD","in_stock":true}],"url":"https:\/\/cdsenet.store\/products\/tx915-jk-series-915mhz-bendable-rubber-lora-antenna","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}