AY-450

The AY-450 is a professional-grade, high-gain directional UHF Yagi antenna engineered for the 400–512 MHz frequency range. Delivering a robust 13 dBi gain, this antenna is specifically hardened for mission-critical base station applications in extreme theaters. Featuring MIL-STD-810G compliance and a tactical Olive Green finish, it is designed for maximum reliability in coastal, desert, and high-vibration environments.

Precision Directional Focus

The AY-450 provides sharp, directive performance with a 55-degree horizontal and 45-degree vertical beam-width. Combined with a 16 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.

Strategic Structural Hardening

Constructed from 6063T6 ultra-corrosion-resistant architectural anodized aluminum alloy, the AY-450 is built to survive the harshest environmental stressors. The elements are permanently welded to the support boom, ensuring that electrical alignment remains perfect even under high vibration or heavy wind loads. For additional protection in saline coastal environments, the entire array is coated with a high-quality epoxy-based paint.

Maintenance-Free Reliability

Designed for "set-and-forget" operation, the AY-450 requires no field tuning or adjustments. The unique matching feed system eliminates the need for traditional folded dipoles, resulting in increased efficiency and a stable VSWR of better than 1.5:1. The antenna is factory-tuned for a 25 MHz bandwidth segment within the 400-512 MHz range.

Performance Summery

Detailed Technical Features

• Strategic Gain: 13 dBi typical gain for superior link margin in the UHF band.
• Stable Bandwidth: Optimized for high-fidelity data and voice across a 25 MHz bandwidth.
• Polarization Versatility: Can be mounted for either Vertical or Horizontal polarization.
• High Power Tolerance: Supports continuous RF power handling of up to 250 Watts.
• Directivity: Directional pattern minimizes multipath interference in urban and industrial zones.

Detailed Mechanical Features

• Aviation Grade Materials: Support boom (25.4 mm square) and elements (12.7 mm round) constructed from 6063T6 aluminum alloy.
• Square Boom Design: Provides superior torque resistance and prevents element rotation under wind load.
• Marine Grade Hardware: Supplied with Type 316 Stainless Steel mounting hardware for masts up to 52 mm (2 inches).
• Tactical Finish: Finished in Olive Green (RAL 6003) for UV protection and tactical concealment.
• Logistics: Overall length of 1.6 meters with a gross weight of 3.5 Kgs.

Detailed Environmental Features (MIL-STD-810G)

• Theater Hardening: Certified against Salt Fog (Method 509.5) and Fungus Resistance (Method 508.6).
• Hurricane Resilience: Wind survival rating of 200 Km/Hr (125 MPH).
• Thermal Hardening: Operational in extreme climates from -30°C to +70°C.
• Mechanical Rigidity: High resistance to Shock (Method 516.6) and Vibration (Method 514.6).
• Climate Defense: High-quality epoxy paint provides a hermetic seal against salt spray and acid rain.

Key Advantages

• Combat-Proven Durability: MIL-STD-810G certification ensures the antenna will not fail in corrosive, humid, or high-vibration theaters.
• Minimal Tower Loading: The small surface area and lightweight design conserve tower capacity and reduce structural stress.
• "Plug-and-Play" Reliability: Factory-welded elements and pre-tuned matching eliminate field assembly errors.

Primary Applications

• Strategic UHF Backhaul: Establishing reliable data and voice links for secure government and military infrastructure.
• Regional UHF Repeaters: Directive high-gain antenna for public safety and emergency service networks.
• Coastal and Maritime Communications: Specialized epoxy coating makes it ideal for port operations and offshore platforms.
• Industrial Telemetry: Perfect for long-range SCADA monitoring in harsh environmental conditions.