APT-1619

The APT-1619 is a highly portable, high-gain tactical microwave antenna specifically optimized for NATO Band III (1350–1850 MHz). With its 0.95-meter (3-foot) aperture and 9 Kg weight profile, it serves as the ideal rapid-deployment solution for military radio relay systems where mobility and performance must be perfectly balanced.

Features, Durability, and Efficiency - Performance Features

The APT-1619 provides versatile directional coverage, delivering an isotropic gain that scales from 18 dBi to 21 dBi across the band. This ensures a robust communication link for tactical point-to-point applications. A standout operational feature is the single-operator installation design; the antenna utilizes a quick-fastener system to secure the primary feed, allowing for immediate field setup. Additionally, the mounting hardware is engineered for tactical flexibility, permitting a 90-degree rotation to switch between vertical and horizontal polarization as mission requirements evolve.

Durability and Construction

Engineered to withstand the rigors of combat environments, the APT-1619 is fabricated from 6063T6 architectural-grade aluminum alloy. All structural components are treated with an olive green epoxy-based anti-corrosive paint, and every screw, nut, and bolt is made of marine-grade stainless steel to prevent environmental degradation. The radiating elements and dipole feed are crafted from high-quality brass for maximum electrical efficiency. The antenna is fully MIL-STD-810G compliant, rated to function in extreme temperatures and survive high-impact shocks and blown rain.

Operational Efficiency

Efficiency in the APT-1619 is driven by its ability to perform in "congested" electromagnetic spectrums. A Front-to-Back ratio of >24 dB and low side lobes ensure that the antenna focuses energy precisely and remains immune to interference from nearby co-sited antennas. For safety and signal clarity, it features a direct D.C. Ground path, providing lightning protection and static noise immunity. At only 9 Kgs, it is one of the most efficient high-gain microwave systems for rapid-response tactical teams.

The APT-1619 is a precision-engineered microwave relay solution designed for NATO Band III (1350–1850 MHz). It serves as the "middle-weight" champion of the Band III series, offering a 0.95-meter aperture that provides significant gain while remaining light enough for rapid, single-operator field deployment.

Detailed Technical Features - RF & Electrical Performance

• Wideband NATO Band III Coverage: Specifically optimized for the 1350–1850 MHz frequency range, ensuring seamless integration with standard-issue military radio relay sets.
• Progressive Isotropic Gain: The electrical efficiency of the parabolic design scales across the band to ensure link stability:
  • 18 dBi at the Low Band (1350 MHz)
  • 19 dBi at the Mid Band (1600 MHz)
  • 21 dBi at the High Band (1850 MHz)
• Pencil-Beam Directivity: Concentrates RF energy into a narrow half-power beam-width that tightens from 17° to 12° as frequency increases. This highly directional radiation pattern maximizes transmission range and provides inherent Low Probability of Intercept (LPI) characteristics.
• Superior Signal Isolation:
  • Front-to-Back Ratio (>24 dB): Effectively rejects noise and interference originating from behind the antenna, which is critical for maintaining high throughput in "noisy" electromagnetic environments.
  • Low Side Lobes: Engineered to minimize parasitic radiation, preventing interference with other co-located communication systems on the same tactical mast.
• High Power & Safety:
  • 250 Watts CW: Robust power handling capacity for high-intensity microwave links.
  • Direct D.C. Grounding: The radiating element is internally grounded to provide a low-resistance discharge path, offering essential protection against lightning strikes and static noise buildup.

Detailed Mechanical Features - Structural Engineering & Materials

• Reflector Architecture: The 0.95-meter (3-foot) grid parabolic dish is fabricated from 6063T6 architectural-grade aluminum alloy, delivering an elite strength-to-weight ratio and high resistance to stress-corrosion.
• Aerodynamic Grid Construction:
  • Support Rim: 25.5mm (1") outer diameter aluminum tube for rigid structural integrity.
  • Grid Members: 12.7mm (1/2") outer diameter aluminum pipes, spaced to allow high-velocity winds to pass through the reflector, significantly reducing "wind-sail" force.
• High-Conductivity Feed: The radiating elements and the dipole feed are crafted from High-Quality Brass, ensuring maximum electrical conductivity 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 or humid jungle theaters.

Tactical Versatility & Logistics

• Single-Operator Deployment: With a gross weight of only 9 Kgs, the antenna is designed for rapid manual handling. 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 the field without disassembling the mount.
• 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-1619 is fully ruggedized to ensure mission-critical communication remains uninterrupted in the most unforgiving climates:

• High-Wind Stability: Structurally rated to maintain its alignment and integrity in wind speeds up to 180 Km/Hr.
• Global Compliance: Fully tested to MIL-STD-810G for:
  • High/Low Temperature: Operational from -30°C to +70°C and storage from -40°C to +80°C.
  • Salt Fog (Method 509.5): Essential for naval and shoreline deployments.
  • Blown Rain (Method 506.5): Ensures zero water ingress into the feed during heavy tropical monsoons.
  • Shock & Vibration (Method 514.6/516.6): 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 and copper coatings 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.

The APT-1619 is a precision-engineered solution for NATO Band III (1350–1850 MHz) tactical networks. Its design fills a critical gap for units that require higher gain than a standard omnidirectional or small Yagi antenna, but cannot afford the weight and logistical footprint of a full 1.2-meter dish.

Key Advantages

• Optimal Power-to-Weight Ratio: Delivering a peak gain of 21 dBi while weighing only 9 Kgs, the APT-1619 is the "sweet spot" for high-mobility units. It provides enough gain to leapfrog over significant terrain obstacles while remaining light enough to be mounted on lightweight man-portable or vehicle-integrated telescopic masts.
• Rapid Tactical Deployment: In modern warfare, speed is a survival metric. The quick-fastener system allows a single operator to take the antenna from its transport case to full operational status in under five minutes. The tool-free assembly of the primary feed ensures that links can be established or relocated instantly.
• Superior Spectrum Hygiene: With a Front-to-Back ratio of >24 dB and exceptionally low side lobes, this antenna is "electrically quiet" to its surroundings. This allows it to be used in dense signal environments—such as a battalion command post—without causing interference to, or receiving noise from, other co-located radio systems.
• Hurricane-Force Resilience: The open-grid design is aerodynamically transparent, allowing it to maintain its precision alignment in wind speeds up to 180 Km/Hr. This is a massive advantage over solid parabolic dishes, which act as "sails" and can buckle masts or lose signal lock during severe weather.
• Combat-Ready Durability: Built to MIL-STD-810G standards, the APT-1619 is immune to the "salt-crust" and oxidation common in coastal theaters. The combination of 6063T6 aluminum, marine-grade stainless steel, and epoxy powder coating ensures a maintenance-free lifecycle in humid, saline, or arctic conditions.

Key Applications

1. High-Mobility Tactical Radio Relay

The APT-1619 is the primary choice for "jump" teams—tactical units that must frequently relocate their position. It provides the high-bandwidth backbone for carrying voice, data, and video between mobile command posts and forward operating bases (FOB).

2. NATO Band III Joint Operations

Fully compliant with the 1350–1850 MHz frequency range, this antenna is a standardized tool for allied forces. It ensures seamless interoperability between different national military radio relay sets during multinational theater deployments.

3. Drone (UAV) Ground Control Stations

The high directional gain and 1.35–1.85 GHz coverage make the APT-1619 ideal for controlling long-range UAVs or receiving high-definition ISR (Intelligence, Surveillance, and Reconnaissance) video feeds from aerial platforms.

4. Coastal and Border Surveillance

Used in both fixed and semi-fixed roles, the APT-1619 connects remote shoreline sensors and radar stations to a central monitoring hub. Its salt-fog resistance makes it the go-to model for maritime border security where standard equipment typically fails.

5. Electronic Warfare (EW) Resilient Links

With a narrow 12-degree beam-width at the high end, the antenna focuses energy into a "pencil beam." This makes the communication link extremely difficult for enemy direction-finding (DF) sensors to detect and provides the "link margin" necessary to maintain communications through active jamming.

Technical Performance Summary