APT-4726

The APT-4726 is the most compact and highly portable solution in the NATO Band IV lineup. Designed for "grab-and-go" tactical operations, it provides significant gain in a lightweight, 0.65-meter form factor that can be deployed in seconds by a single operator.

Performance Features

The APT-4726 is a high-performance tactical microwave antenna engineered for the 4400–5000 MHz range. Despite its compact 0.65-meter (2 feet) diameter, it delivers a focused 7-degree beam-width, ensuring precise point-to-point communication. A standout feature for rapid deployment is its integrated +/-15 degrees elevation tracking mechanism, which offers the widest range of vertical adjustment in the series, making it ideal for establishng links in mountainous or urban terrain.

Durability and Construction

Built from 6063T6 ultra-corrosion-resistant architectural anodized aluminum, the APT-4726 is designed to survive in the world's harshest theaters. It is finished with an army green epoxy-based anti-corrosive powder paint and utilizes high-grade stainless steel for all fasteners. The antenna is fully compliant with MIL-STD-810G standards, having passed rigorous testing for high/low temperatures, shock, vibration, and blown rain. Its open-grid design allows it to remain stable in wind speeds up to 160 Km/Hr.

Operational Efficiency

Efficiency is at the core of the APT-4726’s design. Weighing only 5 Kgs, it is the lightest model in the NATO Band IV series, allowing it to be easily carried by a single soldier. The quick-fastener system for the primary feed and the ability to rapidly toggle between vertical and horizontal polarization ensure that communication links are established with minimal downtime. Furthermore, the integrated D.C. ground provides essential lightning protection and noise immunity, safeguarding sensitive radio equipment.

For the APT-4726, the focus is on achieving the perfect balance between high-frequency microwave performance and extreme man-portability. Below is the detailed breakdown of its technical and mechanical architecture.

RF & Electrical Architecture

• Frequency Optimization: Specifically tuned for NATO Band IV (4400–5000 MHz), ensuring full interoperability with modern military radio relay systems.
• Isotropic Gain: Provides a robust 26 dBi Typical gain, allowing for long-distance communication despite its small 0.65m aperture.
• Directional Precision: Features a focused <7° half-power beam-width, which concentrates energy to maximize range and minimize the probability of intercept (LPI).
• Signal Integrity: * Front-to-Back Ratio:26 dB, ensuring the antenna is shielded from noise originating behind the reflector.
  • Cross-Polarization Discrimination: 22 dB, allowing for clean signal separation in complex RF environments.
• Power Handling: Capable of managing 150 Watts of continuous RF power, suitable for high-capacity data and video trunks.
• Electrical Safety: Integrated D.C. Grounding creates a low-resistance discharge path, offering dual protection against lightning strikes and static noise interference.

Connection & Interface

• Termination: Equipped with an N-Female connector for universal compatibility with tactical coaxial cables.
• Impedance: Standardized 50 Ohms for minimal signal reflection and optimal power transfer.

Advanced Materials & Fabrication

• Reflector Construction: The 0.65-meter grid parabolic dish is fabricated from 6063T6 architectural-grade aluminum alloy, known for its high strength-to-weight ratio and natural resistance to environmental stress.
• Feed System: The primary feed is made from high-quality brass and features a quick-fastener system, allowing for rapid assembly/disassembly without specialized tools.
• Hardware: Every screw, nut, and bolt is made of high-grade marine-certified stainless steel to prevent "seizing" or oxidation in humid or saline conditions.

Mechanical Versatility

• Elevation Tracking: A key mechanical highlight is the built-in +/-15° elevation tracking mechanism. This provides significant vertical tilt, essential for aligning links in steep mountainous terrain or high-density urban "canyon" environments.
• Polarization Adjustment: The rear mounting hardware allows the operator to rotate the antenna by 90 degrees to switch between Vertical (V) and Horizontal (H) polarization on-the-fly.
• Mounting Interface: Designed to be clamped onto any standard vertical mast or support pipe with an outer diameter of up to 52 mm (2 inches).

Portability & Logistics

• Ultra-Lightweight Design: With a gross weight of only 5 Kgs, it is the lightest antenna in its class, designed for "single-operator" deployment and easy integration into man-portable tactical kits.
• Compact Footprint: The 2-foot (0.65m) diameter ensures a low visual and physical profile, making it easier to conceal in forward-operating positions.

Environmental Engineering (MIL-STD-810G)

The mechanical design is validated against the most demanding global military standards to ensure reliability in any theater of operation.

• Wind Load Efficiency: The grid-style members (12.7mm aluminum pipe) allow wind to pass through the reflector, maintaining stability in gusts up to 160 Km/Hr.
• Anti-Corrosive Finish: The entire unit is treated with an Army Green epoxy-based powder coating, providing high resistance to salt fog, UV radiation, and chemical agents.
• Temperature Resilience: Engineered to function flawlessly in temperatures as low as -40°C and as high as +71°C.
• Ingress & Impact: Fully tested for Blown Rain (Method 506.5) and High-Impact Shock (Method 516.6), ensuring it can survive transit in tactical vehicles and exposure to heavy monsoon seasons.

EU Environmental & Safety Compliances

To meet international regulatory and environmental safety standards for global deployment, the antenna adheres to the following:

• RoHS Compliant: Restricted use of hazardous substances (Lead, Mercury, Cadmium, etc.) in all electronic components and solder joints.
• REACH Compliant: Ensures all chemical substances used in the fiberglass radome are registered and safe for human health and the environment.
• WEEE Directive: Designed for high-end lifecycle management with recyclable aluminum and copper materials, facilitating sustainable disposal.
• CE Mark: Fully compliant with EU safety, health, and environmental protection requirements.

Key Advantages

• Extreme Portability: At just 5 Kgs, this antenna can be moved and set up by one person in environments where heavier equipment cannot go.
• Superior Vertical Flexibility: The +/-15° elevation tracking is the most generous in the lineup, perfect for steep angle links in hills or high-rise urban areas.
• Low Visual Profile: Its small size and grid design make it difficult to detect visually or by radar, providing a stealth advantage to tactical units.

Key Applications

• Forward Operating Base (FOB) Links: Ideal for connecting small tactical teams to a larger command network.
• Urban Warfare & C4I: Small enough to be deployed on rooftops or balconies for secure, high-speed data transmission.
• Unmanned Aerial Vehicle (UAV) Ground Stations: Provides a portable, high-gain directional link for controlling drones and receiving video feeds.
• Emergency Rapid Response: The go-to model for disaster relief teams needing to restore communications instantly.