{"product_id":"tx2400-jz-3-2-4ghz-ultra-short-antenna-2-0dbi-sma-j","title":"Cdsenet TX2400-JZ-3 2.4GHz Mini Rubber Antenna 2.0dBi SMA-J 34mm IoT Compact Size","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 10px;\"\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 24px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 20px;\"\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp style=\"font-size: 16px; color: #444; margin-bottom: 20px;\"\u003eThe \u003cstrong\u003eTX2400-JZ-3\u003c\/strong\u003e is a 2.4GHz ultra-short omnidirectional rubber stick antenna engineered for space-constrained IoT devices and mobile wireless terminals. At just \u003cstrong\u003e34mm tall\u003c\/strong\u003e, it delivers a measured \u003cstrong\u003epeak gain of 2.0 dBi\u003c\/strong\u003e with a VSWR of \u003cstrong\u003e1.51 at 2.4GHz and 1.41 at 2.5GHz\u003c\/strong\u003e, covering the full 2.4–2.5GHz ISM band used by Wi-Fi, Bluetooth, ZigBee, and Thread. The TPEE radome provides weather resistance and mechanical flexibility for compact gateways, network cards, routers, and handheld industrial terminals. Updated March 2026.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" cke-id=\"img32\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-JZ-3.png?v=1774862408\"\u003e\u003c\/div\u003e\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 15px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left; border: 1px solid #ececec;\"\u003e\n\t\u003cthead\u003e\n\t\t\u003ctr style=\"background-color: #f9f9f9; border-bottom: 2px solid #eee;\"\u003e\n\t\t\t\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eParameter\u003c\/th\u003e\n\t\t\t\u003cth style=\"padding: 12px; font-weight: bold; color: #333;\"\u003eValue\u003c\/th\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/thead\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eFrequency Range\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e2400 – 2500 MHz (Center: 2450 MHz)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003ePeak Gain\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e2.0 dBi\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eVSWR\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: bold; color: #c0392b;\"\u003e1.51 @ 2.4 GHz  |  1.41 @ 2.5 GHz (≤ 1.5 typ. mid-band)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eImpedance\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e50 Ω\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eConnector Type\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eSMA-J (SMA Male, inner thread \u0026amp; pin)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eAntenna Height\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e34 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eRadome Material\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eTPEE (weather-resistant, high elasticity)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eRadiation Pattern\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eOmnidirectional (vertical polarization)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eMax Input Power\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e50 W\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0; background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eOperating Temperature\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003e-30 °C to +75 °C\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"border-bottom: 1px solid #f0f0f0;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eCompliance\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eRoHS\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr style=\"background-color: #fafafa;\"\u003e\n\t\t\t\u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eLast Updated\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding: 12px;\"\u003eMarch 2026\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eProduct Details\u003c\/h2\u003e\n\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003e34mm Ultra-Short Profile — Minimal Panel Footprint\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eAt 34mm total height, the TX2400-JZ-3 is suited for devices where standard 50–100mm antennas would protrude excessively: network cards, compact industrial gateways, smart TV modules, and handheld terminals. The TPEE body is flexible under lateral stress, reducing the risk of connector damage from accidental contact in dense equipment racks or portable devices.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" cke-id=\"img33\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-JZ-3-1.png?v=1774862409\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background: #ffffff; border: 1px solid #eee; border-radius: 8px; padding: 20px;\"\u003e\n\u003ch3 style=\"font-size: 18px; color: #111; margin: 0 0 10px 0;\"\u003eSMA-J Connector — Direct Compatibility with 2.4GHz Wireless Modules\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin-bottom: 15px;\"\u003eThe precision SMA-J (male, inner thread and pin) connector provides a 50Ω impedance-matched interface to SMA-K female ports on Wi-Fi modules, Bluetooth gateways, ZigBee coordinators, and wireless serial port modules. The connector is rated for repeated mating cycles, supporting field-serviceable installations in routers, APs, and industrial wireless terminals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 20px;\"\u003eProfessional Test Report\u003c\/h2\u003e\n\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center;\"\u003e\n\u003cp style=\"font-size: 15px; color: #1e3a8a; margin-bottom: 15px;\"\u003eMeasured with a vector network analyzer (Agilent E5071C equivalent): VSWR = \u003cstrong\u003e1.51 @ 2.40 GHz\u003c\/strong\u003e and \u003cstrong\u003e1.41 @ 2.50 GHz\u003c\/strong\u003e. The antenna meets the ≤1.5 VSWR specification across the upper portion of the band; the 2.40GHz edge reading of 1.51 represents a \u0026lt;1% deviation from the ≤1.5 threshold and has negligible impact on system link budget.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" cke-id=\"img34\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-JZ-3-2.png?v=1774862409\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f8fbff; border: 1px solid #e1ecf7; border-radius: 8px; padding: 20px; text-align: center;\"\u003e\u003cdiv\u003e\u003cimg alt=\"\" cke-id=\"img35\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-JZ-3-3.png?v=1774862409\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eIdeal Applications\u003c\/h2\u003e\n\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eNetwork Infrastructure\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eCompact Wi-Fi routers, access points, and wireless hotspot devices requiring a low-profile external antenna that does not obstruct adjacent ports.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eMobile \u0026amp; Handheld Terminals\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003ePortable radios, network cards, smart TV modules, and handheld industrial scanners where a standard-length antenna would be impractical.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eSmart Home \u0026amp; ZigBee\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eZigBee 3.0 coordinators, Thread border routers, Bluetooth 5.x hubs, and Matter-over-Thread devices in residential and light commercial smart home deployments.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"flex: 1 1 220px; min-width: 200px; border: 1px solid #f0f0f0; border-radius: 10px; padding: 15px; background: #fff;\"\u003e\n\u003ch3 style=\"font-size: 16px; margin: 0 0 8px 0; color: #0056b3;\"\u003eIndustrial IoT Gateways\u003c\/h3\u003e\n\n\u003cp style=\"font-size: 14px; color: #666; margin: 0;\"\u003eCompact industrial wireless gateways, SCADA edge nodes, and factory automation controllers requiring a space-efficient 2.4GHz antenna on a DIN-rail or panel-mount enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"font-size: 22px; color: #111; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 25px;\"\u003eResources\u003c\/h2\u003e\n\u003ca href=\"http:\/\/www.cdebyte.com\/pdf-down.aspx?id=1235\" rel=\"noopener noreferrer\" style=\"display: inline-block; padding: 12px 25px; background-color: #0056b3; color: #fff; text-decoration: none; border-radius: 6px; font-weight: 600; font-size: 15px;\" target=\"_blank\"\u003e📄 Download Datasheet (PDF)\u003c\/a\u003e\u003c\/section\u003e\n\n\u003csection style=\"border-top: 1px solid #eee; padding-top: 30px;\"\u003e\n\u003ch2 style=\"font-size: 20px; color: #111; margin-bottom: 20px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: Is the TX2400-JZ-3 compatible with Wi-Fi, Bluetooth, and ZigBee modules?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: Yes. The TX2400-JZ-3 covers 2400–2500MHz, encompassing Wi-Fi 4\/5 (802.11b\/g\/n), Bluetooth 4.x\/5.x, ZigBee 3.0, Thread, and Matter over Thread. It requires an SMA-K (female) port on the host module. Verify your device uses standard SMA (not RP-SMA) before ordering — the two connectors appear similar but are not interchangeable.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: Why does the VSWR read 1.51 at 2.4GHz instead of ≤1.5?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The measured VSWR of 1.51 at 2.40GHz represents a \u0026lt;1% deviation from the ≤1.5 specification threshold. At this level, the reflected power difference versus a perfect 1.5 VSWR match is less than 0.03 dB — well within measurement uncertainty and negligible for any practical link budget. The antenna fully meets the ≤1.5 specification across the mid and upper band (2.45–2.50GHz).\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: How does the 34mm height compare to standard 2.4GHz rubber antennas?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: Standard 2.4GHz rubber stick antennas typically measure 50–105mm. The TX2400-JZ-3 at 34mm is approximately 30–65% shorter, making it suitable for panel-mount devices, network cards, and portable terminals where a full-length antenna would protrude beyond the device enclosure or obstruct adjacent connectors. The trade-off is a marginally narrower elevation beamwidth compared to longer antennas.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 20px; padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: What is the operating temperature range?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: The TX2400-JZ-3 is rated for -30°C to +75°C. This covers standard indoor and light industrial environments. For applications requiring operation below -30°C or above +75°C (such as outdoor industrial enclosures in extreme climates), consider the TX2400-JW-5, which is rated for -40°C to +85°C.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"padding: 15px; background: #fafafa; border-radius: 8px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 6px;\"\u003eQ: What is the difference between SMA-J and RP-SMA connectors?\u003c\/p\u003e\n\n\u003cp style=\"color: #555; margin: 0; font-size: 14px;\"\u003eA: SMA-J (standard SMA Male) has an inner pin and mates with SMA-K (female, inner socket) ports on most industrial wireless modules and IoT gateways. RP-SMA reverses the pin\/socket arrangement and is commonly found on consumer Wi-Fi routers. The TX2400-JZ-3 uses SMA-J and is not compatible with RP-SMA ports without an adapter. Always confirm your device's connector type before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n","brand":"cdsenet","offers":[{"title":"Default Title","offer_id":45301875966054,"sku":"TX2400-JZ-3","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/9918\/9350\/files\/TX2400-JZ-3-_2_800x800_v2.jpg?v=1773985990","url":"https:\/\/cdsenet.store\/products\/tx2400-jz-3-2-4ghz-ultra-short-antenna-2-0dbi-sma-j","provider":"CDSENET, Built for the Wireless World","version":"1.0","type":"link"}