QHA-1720

The QHA-1720 engineering emphasizes its critical role in 1700–2000 MHz (1.7–2.0 GHz) operations, specifically targeting GSM 1800/1900, CDMA, and tactical L-Band frequencies. By highlighting its Quadrifilar Helix (QHA) circular polarization, we position it as the premier choice for mission-critical telemetry and ground-to-air links where signal stability during banking or maneuvering is non-negotiable.

Logistics: Versatile Tactical Integration & Customization

The QHA-1720 is designed for rapid logistical deployment and high-mobility integration. Its compact footprint allows for easy handling and cost-effective shipping, ensuring immediate operational readiness for signal intelligence and communication teams. Arriving factory-calibrated with zero field tuning required, it features a standard NATO 4-hole mounting flange for seamless installation on armored vehicles and tactical masts. For specialized mission requirements, the QHA-1720 can be supplied with customized mounting hardware, camouflage colors, and higher power ratings on request.

Durability: Radome-Enclosed All-Weather Resilience

Built to withstand the world’s most punishing climates, the QHA-1720 is encased in a high-impact, UV-resistant ABS radome. This enclosure provides a streamlined, cylindrical profile that minimizes wind loading and resists ice accumulation, ensuring 24/7 reliability in both arctic and desert environments. The internal copper alloy elements are protected from the elements, while the RF-transparent housing ensures consistent signal integrity. To ensure a long service life in saline or corrosive atmospheres, all mounting hardware is crafted from marine-grade stainless steel.

Efficiency: Circular Polarized Superiority for 1.7–2.0 GHz

The QHA-1720 provides a definitive edge in signal reliability through its Circularly Polarized (RHCP or LHCP) radiation pattern. By twisting two pairs of vertical loop radiating elements into a helix, it achieves a wide elevation beamwidth and true omni-directional properties.

This geometry is uniquely efficient for Ground-to-Air communication and high-power jamming, as it effectively eliminates signal "fading" and cross-polarization losses encountered when aircraft bank or mobile targets change orientation. Utilizing a specialized "Teflon Dielectric Transmission Line" technique, the antenna maintains a smooth VSWR and 2 dBi gain across the entire 1.7–2.0 GHz band.

Technical Features

• Optimized Bandwidth: High-efficiency, continuous operation across the 1700–2000 MHz spectrum (GSM, CDMA, and L-Band).
• Circular Polarization Excellence: Available in RHCP or LHCP to reject multipath interference and eliminate signal drops during aerial maneuvers.
• Quadrifilar Helix Geometry: Provides hemispherical coverage with a wide elevation beamwidth, perfect for tracking drones and high-altitude aircraft.
• High-Power Teflon Dielectric: Features a specialized Teflon transmission line to support high-power transmitting and broadband jamming.
• Ruggedized ABS Radome: High-strength, UV-resistant housing designed for low wind loading and maximum RF transparency.
• NATO Standard Mounting: Supplied with a NATO 4-hole flange for tactical vehicle mounting; custom mounts and colors available.
• Weatherproof Termination: RF termination is strategically placed below the mounting flange for 100% protection against moisture.
• Zero Field Maintenance: Arrives factory-calibrated and requires no field adjustments or tuning for immediate operation.
• Superior Material Build: Constructed using high-class copper alloy and marine-grade stainless steel for total corrosion resistance.
• Optional High-Power Rating: Available in enhanced power configurations for specialized jamming and surveillance missions.