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915mhz 3dBi Rubber Antenna for TV
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915mhz 3dBi Rubber Antenna for TV

Product specifications:
Frequency Range:915MHz
Gain:3dBi
V.S.W.R≤1.92
Nominal Impedance:50Ω
Polarization:Vertical
Maximum Power:50W
Connector:SMA
 
  • EX20022

  • Keesun

  • EX20022

Availability:
Quantity:
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Are you looking to significantly boost the performance and range of your 915MHz Industrial, Scientific, and Medical (ISM) band devices? The days of unreliable connections and limited coverage for your Internet of Things (IoT), LoRaWAN, or M2M projects are over. Our 915MHz 3dBi Omni-Directional Rubber Duck Antenna is specifically engineered to provide a robust, stable, and extended-range signal for all applications operating in the popular 902-928 MHz frequency range (US915).

Please Note: This antenna is optimized for the 915 MHz ISM band used primarily for long-range, low-power data communication technologies like LoRaWAN, Helium, and M2M. It is not designed for standard Over-the-Air (OTA) Digital TV reception, which operates in the UHF/VHF frequency ranges (470-698 MHz, 54-216 MHz). Using the antenna for its intended purpose will ensure optimal signal performance.

This compact, high-performance antenna, often referred to as a rubber ducky antenna or whip antenna, combines a modest yet effective 3dBi gain with a rugged, flexible design. It is the perfect upgrade from stock antennas, offering superior signal propagation in a portable, easy-to-deploy package. Whether you are expanding a Helium Hotspot network, deploying a large-scale LoRa sensor array, or optimizing a SCADA system, this antenna delivers the reliability and extended reach you need to maintain critical connections. It's built for seamless integration, durability, and 360-degree signal coverage, ensuring your devices perform optimally indoors and out.

Unmatched Performance for Long-Range Data Communications

The core of any successful long-range wireless deployment lies in the quality of its radiating element. Our 915 MHz Rubber Antenna is precision-tuned to the center of the US ISM band to deliver peak efficiency for data transmission and reception.

  • Optimized 915 MHz Frequency: This antenna is laser-focused on the 902-928 MHz band, which is critical for low-power wide-area networks. This tuning minimizes the Voltage Standing Wave Ratio (VSWR) to below 2.0 (typically 1.5), ensuring maximum power transfer from your radio to the antenna. This results in cleaner signals, minimal reflection loss, and fewer dropped data packets compared to generic, poorly-tuned alternatives.

  • True 3dBi Omni-Directional Gain: The 3dBi gain provides a carefully balanced radiation pattern. It offers greater range and stronger signal penetration than a zero-gain antenna without becoming overly directional (as is common with very high-gain antennas). The omni-directional pattern guarantees a complete 360° horizontal coverage, which is ideal for mobile devices or stationary equipment where communication direction is not fixed. This makes it an excellent "starter" or general-purpose antenna for urban and suburban environments.

  • 50 Ohm Impedance Matching: Engineered to perfectly match the standard 50 Ohm impedance of virtually all LoRaWAN and IoT radio modules, this ensures plug-and-play compatibility and peak system efficiency without requiring additional tuning components.

By prioritizing efficiency and a balanced gain profile, this 3dBi whip antenna acts as the crucial link for extending your wireless network's footprint, providing stable performance even in challenging, non-line-of-sight (NLOS) environments common in the sub-GHz frequency range.

Versatile Deployment Scenarios for the IoT Ecosystem

The robust construction and specific frequency tuning of this 915MHz antenna open it up to a vast range of professional and enthusiast applications, all centered around low-power, long-range data communication.

LoRaWAN & LPWAN Networks

The 915MHz frequency is the operational standard for LoRaWAN (Long Range Wide Area Network) deployments across North America, Australia, and select parts of Asia. This antenna is a primary component for:

  • Helium Network Miners: Serving as an upgraded or direct replacement antenna for popular Helium Hotspots (e.g., Bobcat, RAK, SenseCAP), the 3dBi gain is often the ideal choice for dense urban areas. It helps increase the number of witnesses and improve HNT rewards by optimizing the vertical beamwidth for signal reception from surrounding buildings.

  • LoRa Nodes & Gateways: Enhancing the uplink and downlink range and reliability of base stations and end devices in large-scale smart city, smart agriculture, or industrial monitoring projects where a wide coverage area is needed.

M2M (Machine-to-Machine) and SCADA Communications

The compact and durable design is ideal for critical industrial and utility installations where robust connectivity is mandatory:

  • Remote Asset Monitoring: Connecting environmental sensors, GPS trackers, or utility meters (like gas and water) that require low data rates but must communicate reliably over long distances.

  • SCADA and Telemetry: Providing reliable two-way data links for supervisory control and data acquisition systems in remote or harsh environments, such as monitoring water levels, oil pipelines, or weather stations.

Wireless Video and Data Links

In certain jurisdictions where allowed, the 915 MHz ISM band is utilized for specialized, short-burst, low-bandwidth data and wireless video links where signal penetration through obstacles is paramount, such as within a dense warehouse or construction site. Its flexibility also makes it a favorite for FPV (First Person View) and RC control links for drone enthusiasts using systems tuned to the 915MHz band.

Designed for Durability and Seamless Integration

Our 915MHz 3dBi Rubber Duck Antenna is engineered to combine high electrical performance with superior mechanical resilience, guaranteeing reliability whether mounted indoors or out.

  • Rugged 'Rubber Duck' Housing: The outer jacket is made from a highly flexible and durable rubber compound (typically TPEE or high-grade ABS), which protects the sensitive internal elements from physical impact, vibration, and environmental factors like dust and moisture. This resilience is what makes the rubber ducky design a standard for mobile and portable equipment.

  • Universal SMA-Male Connector: The antenna is typically terminated with a universally popular SMA-Male connector, allowing for immediate plug-and-play connection to a vast range of 915 MHz radio modules, development boards (e.g., Meshtastic, ESP32 LoRa), and commercial gateways. Its swivel and tilt hinge allows the antenna to be optimally positioned vertically regardless of the mounting orientation of the host device.

  • Compact and Lightweight: With a physical length optimized for the quarter-wave performance at 915MHz, the antenna is incredibly portable and adds minimal bulk or weight to your end device, making it ideal for small form-factor devices and discrete IoT installations.

Conclusion: Elevate Your 915MHz Connectivity

The 915MHz 3dBi Omni-Directional Rubber Duck Antenna is an essential upgrade for any system utilizing the 902-928 MHz ISM band. Its optimized technical performance for LoRaWAN, Helium, and M2M applications, combined with its robust, compact, and universally compatible design, guarantees an immediate and tangible improvement in your network's range, stability, and data throughput. For reliable, long-range, low-power connectivity in the 915MHz frequency, this rubber whip antenna is the smart choice. Upgrade your device today to connect further and more reliably.


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Shenzhen Keesun Technology Co.,Ltd was founded in Aug of 2012, a high-tech enterprise specializing in various types of antenna and network cable manufacturing.

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