AY-850

The AY-850 is a professional-grade, high-gain directional Yagi antenna specifically engineered for the 700–1000 MHz frequency spectrum. Delivering a robust 13 dBi (11 dBd) gain, this antenna is optimized for long-distance point-to-point links, 800/900 MHz ISM band telemetry, and mission-critical cellular backhaul. Its ruggedized, pre-assembled construction ensures rapid deployment and high survivability in extreme environmental conditions.

Precision Directional Focus

The AY-850 provides sharp, directive performance with a 45-degree horizontal and 35-degree vertical beam-width. Combined with an 18 dB Front-to-Back Ratio, it allows system engineers to establish high-intensity links while effectively rejecting co-channel interference and background noise from the rear and sides. This high selectivity is crucial for maintaining signal integrity in congested RF environments.

Innovative Feed and Efficiency

The unique design of the AY-850 utilizes a specialized matching feed system that acts as an internal impedance transformer. This eliminates the need for traditional folded dipoles, which can introduce unnecessary complexity and loss. The result is a stable VSWR of better than 1.5:1 across a 100 MHz segment of the band. The feed point is enclosed in a ruggedized Nylon housing, providing a hermetic seal against moisture, ice, and salt spray.

Industrial-Grade Construction

Built for permanent outdoor installation, the antenna is constructed from high-quality 6063T6 architectural aluminum alloy. The radiating elements are permanently fixed to the 25.4 mm support boom, ensuring that electrical alignment remains perfect even under high vibration or heavy wind loads. The antenna is factory-tuned and requires no field adjustments, providing "out-of-the-box" reliability.

Performance Summery

Detailed Technical Features

• Strategic Gain: 13 dBi typical gain for superior link margin in the 700–1000 MHz band.
• Broad UHF/Cellular Coverage: Optimized for GSM-850, 900 MHz SCADA, and LTE-700/800 frequency ranges.
• Polarization Versatility: The mounting hardware facilitates both Vertical and Horizontal polarization.
• High Power Tolerance: Supports continuous RF power handling of up to 250 Watts.
• Signal Purity: Directional pattern minimizes multipath interference in urban and industrial zones.

Detailed Mechanical Features

• Aviation Grade Materials: Elements and booms made from 6063T6 aluminum round tubes and rods for maximum corrosion resistance.
• Pre-Assembled Rigidity: Elements are factory-fixed; no field assembly of individual elements is required.
• Streamlined Profile: Small surface area minimizes wind resistance and conserves tower loading capacity.
• Elite Fasteners: Supplied with Stainless Steel mounting hardware for masts up to 52 mm (2 inches).
• Termination: Industry-standard N-Female termination fixed directly to the driven element.

Detailed Environmental Features

• Hurricane Resilience: Wind survival rating of 200 Km/Hr (125 MPH).
• Thermal Hardening: Operational in extreme climates from -30°C to +70°C.
• Climate Defense: Anodized aluminum and Nylon-protected feed ensure decades of service in saline or industrial atmospheres.
• Humidity Tolerance: Certified for operation in 0 to 95% RH environments.

Key Advantages

• Plug-and-Play Reliability: Factory-fixed elements and pre-tuned matching eliminate field assembly errors and ensure consistent performance.
• Minimal Tower Loading: At only 1.6 Kgs, it reduces structural stress on masts and allows for higher density antenna clusters.
• Maintenance-Free Build: No field tuning required; internal junctions are designed to prevent RF inter-modulation.

Primary Applications

• 900 MHz SCADA & Telemetry: Establishing high-reliability data links for utility grids and industrial automation.
• 800 MHz Public Safety: Directive high-gain antenna for regional emergency service repeaters.
• Cellular & LTE Backhaul: High-gain directive links for regional network infrastructure.
• Point-to-Point UHF Links: Strategic communication backbones for secure fixed-station nodes.