RF Elements
RF Elements StarterHorn 45° Asymmetrical Horn Antenna
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Revolutionize Your Network with the RF Elements 45° StarterHorn™ Antenna
Step into the future of wireless networking with the RF Elements 45° StarterHorn™, a cost-effective scalar horn antenna designed for superior performance and exceptional noise rejection. This antenna is the perfect entry point into horn technology, offering a powerful solution to the common weaknesses found in traditional sector antennas. Its unique asymmetrical beam shape and zero side lobes make it a game-changer for network deployments in noisy, high-density environments.
Unmatched Noise Immunity
The primary cause of interference in 5GHz unlicensed bands is the side lobe radiation from traditional patch array antennas. The StarterHorn™ A45 USMA brilliantly solves this problem with zero side lobes, ensuring your network remains stable and free from interference. This allows for highly efficient spectrum use and enables dense co-location of access points without performance degradation.
Precision Beam Performance
The StarterHorn™ features a unique, asymmetrical radiation pattern with an elliptical main beam. At a -6dB loss, it provides a precise 45° azimuth beam width and a 30° elevation beam width. This focused coverage, combined with an impressive 90% Beam Efficiency, directs RF energy only where you need it, dramatically increasing throughput compared to standard sector antennas which often have efficiencies below 58%.
Consistent Performance Across Frequencies
A standout feature of the StarterHorn™ is the stability of its gain and beam shape across the entire operational frequency range (5150 - 6400 MHz). This means you can rely on consistent, predictable performance regardless of the channel you choose, making network planning and optimization simpler and more effective.
Flexible and Universal Connectivity
Designed for broad compatibility, the STH-A45-USMA includes dual connection options. It features two RP-SMA female ports for use with any third-party radio with coaxial outputs. Additionally, it has a waveguide port for seamless, direct connectivity with Ubiquiti's IsoStation and PrismStation radios.
Durable, All-Weather Construction
Built to withstand the elements, the StarterHorn™ is crafted from high-quality aluminum and UV-stabilized ABS plastic. It carries an IP55 environmental rating for outdoor durability and can survive winds up to 160 km/h (100 mi/h).
Technical Specifications
| Product ID | STH-A45-USMA |
| Antenna Type | Asymmetrical StarterHorn™ |
| Gain | 17 dBi |
| Frequency Range | 5150 - 6400 MHz |
| Azimuth Beam Width (-6dB) | 45° |
| Elevation Beam Width (-6dB) | 30° |
| Radio Connection | 2x RP-SMA female, Waveguide Port |
| Polarization | Dual Linear (V/H) |
| Front-to-Back Ratio | 30 dB |
| Wind Survival | 160 km/h (100 mph) |
| Environmental Rating | IP55 |
| Operating Temperature | -30°C to +55°C (-22°F to +131°F) |
| Pole Mounting Diameter | 20 - 55 mm |
| Materials | UV Stabilized ABS Plastic, Aluminum, Stainless Steel |
| Dimensions (W x H x D) | 236 x 223 x 291 mm |
| Weight | 0.9 kg (1.9 lbs) |
| Compatible Platforms | Ubiquiti: PrismStation 5AC, IsoStation 5AC, IsoStation M5; Any radio with coaxial output. |
Manufacturer Technical Data
| Product Spec Sheet |
 Download |
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