APT-1622

The APT-1622 is a ruggedized, high-gain tactical microwave antenna specifically engineered for NATO Band III (1350–1850 MHz). This 1.2-meter grid parabolic system is designed to provide high-capacity data relay in congested electromagnetic environments while ensuring rapid field deployment.

Performance Features

The APT-1622 is characterized by its high directional gain, delivering 22 dBi at the low band and scaling up to 24 dBi at the high band. This concentrated energy results in narrow half-power beam-widths of 12.5 to 9 degrees, ensuring secure point-to-point links. The antenna supports linear polarization and features a versatile mounting arrangement that allows a single operator to switch between vertical and horizontal polarization in the field. The primary feed assembly uses a quick-fastener system, allowing for immediate setup without specialized tools.

Durability and Construction

Engineered for "deployment under fire," the APT-1622 is constructed from 6063T6 architectural-grade aluminum alloy. To prevent environmental degradation, the unit is finished with an olive green epoxy-based anti-corrosive paint, and all mechanical fasteners are made of marine-grade stainless steel. The radiating elements and dipole feed are crafted from high-quality brass for maximum electrical conductivity. The antenna is fully MIL-STD-810G compliant, designed to operate in extreme temperatures (-30°C to +70°C) and survive harsh conditions such as salt fog, heavy rain, and high-impact shocks.

Operational Efficiency

Efficiency is at the heart of the APT-1622’s design. With a 28 dB Typical Front-to-Back ratio, it effectively rejects interference from co-sited antennas, making it perfect for crowded tactical sites. The integrated D.C. Ground provides a low-resistance discharge path for lightning protection and static noise immunity, protecting sensitive downstream radio equipment. Despite its robust 1.2-meter aperture, its 12 Kg weight profile ensures it remains highly portable for rapid-response military teams.

The APT-1622 is a professional-grade microwave relay solution engineered specifically for the NATO Band III (1350–1850 MHz). By utilizing a 1.2-meter aperture and a high-efficiency grid design, it provides the high "link margin" required for long-distance tactical data trunks while maintaining a weight profile manageable by a single operator.

Detailed Technical Features - RF & Electrical Performance

• Band-Specific Optimization: Fine-tuned to cover the entire 1350–1850 MHz range, ensuring full compatibility with Band III tactical radio relay equipment.
• High Isotropic Gain: The parabolic efficiency provides a powerful signal boost:
  • 22 dBi at the Low Band (1350 MHz)
  • 24 dBi at the High Band (1850 MHz)
• Precision Beamwidth: Concentrates RF energy into a narrow half-power beam-width that tightens from 12.5° to 9° as frequency increases. This "pencil beam" maximizes range and provides inherent protection against eavesdropping.
• Superior Signal Isolation:
  • 28 dB Typical Front-to-Back Ratio: Drastically reduces signal leakage to the rear, allowing for "back-to-back" antenna mounting on a single tower without mutual interference.
  • Cross-Polarization Discrimination: High-purity linear polarization ensures the antenna effectively rejects noise from opposite polarizations in dense RF environments.
• High Power & Safety:
  • 250 Watts CW: Robust power handling capacity for high-intensity, long-range microwave links.
  • Direct D.C. Grounding: The radiating element is internally grounded to provide a low-resistance path for lightning discharge and to bleed off static noise, resulting in a significantly lower noise floor.

Detailed Mechanical Features - Structural Engineering & Materials

• Reflector Architecture: The 1.2-meter (4-foot) grid parabolic dish is fabricated from 6063T6 architectural-grade aluminum alloy, known for its elite strength-to-weight ratio and resistance to stress-corrosion.
• Aerodynamic Grid Construction: * Support Rim: 25.4mm (1") outer diameter aluminum tube for rigid structural support.
  • Grid Members: 12.7mm (1/2") outer diameter aluminum pipes, spaced to allow high-velocity winds to pass through the reflector, reducing "wind-sail" force.
• High-Conductivity Feed: The radiating elements and the dipole feed are crafted from High-Quality Brass, ensuring maximum electrical efficiency and minimal signal loss at the focal point.
• Marine-Grade Hardware: Every screw, nut, and bolt is manufactured from Marine-Grade Stainless Steel to prevent oxidation and "seizing" in high-salinity coastal theaters.

Tactical Versatility & Logistics

• Single-Operator Deployment: Despite its large aperture, the antenna weighs only 12 Kgs. The quick-fastener system allows for the tool-free attachment of the primary feed to the reflector center.
• Field-Adjustable Polarization: The mounting arrangement at the rear of the antenna permits a 90-degree rotation, allowing the operator to switch between Vertical and Horizontal polarization in minutes.
• Mounting Interface: Designed to clamp securely onto any standard vertical mast with a diameter of up to 52 mm (2 inches).
• Stealth & Protection: The unit is finished in a matte Army Olive Green epoxy-based anti-corrosive powder paint, providing a low visual signature and a ruggedized shield against UV and chemical exposure.

Environmental Resilience (MIL-STD-810G)

The APT-1622 is fully ruggedized to ensure mission-critical communication remains uninterrupted:

• High-Wind Stability: Structurally rated to maintain its alignment and integrity in wind speeds up to 180 Km/Hr.
• Extreme Thermal Range: Operational from -30°C to +70°C and capable of being stored from -40°C to +80°C.
• Global Compliance: Tested to MIL-STD-810G for:
  • Salt Fog (Method 509.5): Essential for naval, coastal, and island deployments.
  • Blown Rain (Method 506.5): Ensures zero water ingress into the feed during heavy tropical monsoons.
  • Shock & Vibration (Method 516.6): Ruggedized for transport in tactical ground vehicles and the rigors of rapid field handling.

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

• Extended Link Range (24 dBi Peak Gain): The primary advantage of the APT-1622 is its high isotropic gain. Delivering up to 24 dBi, it allows tactical teams to bridge vast distances—often spanning over 50 kilometers in clear line-of-sight—without the need for intermediate signal repeaters.
• Superior Co-Siting Performance: In a crowded military "antenna farm" or a centralized command hub, signal interference is a constant threat. The APT-1622 features a 28 dB Typical Front-to-Back ratio, which ensures that the antenna only "sees" the intended signal and ignores RF noise from other co-located radios on the same mast.
• Rapid Single-Operator Deployment: Despite its large 1.2-meter diameter, the antenna is engineered for speed. The quick-fastener system and lightweight 12 Kg aluminum construction allow a single operator to assemble and align the unit in minutes. This is a critical advantage for units that must remain mobile and "leapfrog" their communication infrastructure forward.
• High-Power "Burn-Through" Capability: With a robust 250-Watt power handling capacity, this antenna can be paired with high-power microwave transmitters. This provides the extra "punch" needed to maintain a connection during heavy atmospheric fading (rain/fog) or to burn through intentional electronic jamming attempts.
• Environmental Hardening: Unlike commercial grid antennas, the APT-1622 is built to MIL-STD-810G standards. The combination of 6063T6 aluminum, marine-grade stainless steel, and epoxy powder coating ensures it will not corrode in salt-air coastal environments or seize up in arctic temperatures.

Key Applications

1. Divisional Tactical Backhaul

The APT-1622 serves as the primary "high-capacity pipe" for divisional-level radio relays. It is used to connect Main Command Posts (MCP) to Rear Support Areas, carrying high-bandwidth data including real-time situational awareness, encrypted VoIP, and multi-channel video feeds.

2. NATO Band III Joint Operations

Fully compliant with the 1350–1850 MHz spectrum, the APT-1622 is a standardized solution for allied forces. It ensures seamless interoperability between different nations' radio relay hardware during joint multinational exercises or theater deployments.

3. Long-Range Over-Water Communication

Due to its high gain and 180 Km/Hr wind rating, it is the preferred choice for maritime links. It can provide a stable high-speed data bridge between mainland command centers and offshore platforms or remote island outposts where signal stability is often compromised by water reflections.

4. Electronic Warfare (EW) Resilient Links

With a narrow 9-degree beam-width at the high end, the antenna focuses RF energy into a surgical "pencil beam." This makes the link extremely difficult for enemy direction-finding (DF) sensors to detect from the side and provides a high concentration of power that is naturally resistant to wide-area jamming.

5. Strategic Border & Coastal Surveillance

In fixed-station applications, the APT-1622 is used to backhaul data from remote shoreline radars and thermal imaging sensors. Its salt-fog resistance ensures a long, maintenance-free lifecycle even in high-salinity coastal environments where standard equipment typically fails within months.

Technical Performance Summary