AD-23/35-4-M — Mobile UHF Collinear Dipole Antenna

Overview

The AD-23/35-4-M is a rugged mobile collinear dipole antenna covering the 820 to 940 MHz UHF frequency range. Designed for heavy-duty mobile applications, it features a ground-plane independent architecture and offers an optional integrated active GPS antenna.

Technical Summary

• Frequency Range: 820 to 940 MHz (UHF)
• Antenna Type: Collinear Dipole (Omnidirectional)
• Ground-Plane Dependency: Independent
• GPS Integration: Optional active GPS antenna
• Radome Material: Durable composite tube
• Finish: Military green (RAL-6014) two-component UV-resistant paint

Operational Use Cases

Optimized for heavy-duty vehicle communication platforms operating within the 820 to 940 MHz UHF band. The ground-plane independent design allows for versatile placement across different vehicle types without relying on the mounting surface to form a counterpoise.

Deployment Environments

Engineered for demanding outdoor mobile environments. The antenna utilizes a stainless steel biconical spring at its base to absorb severe mechanical shocks and vibrations, while the composite tube construction provides robust resistance to atmospheric conditions.

Setup & Portability

The system is constructed in two primary sections: the radiating element and the shock-absorbing base. The base utilizes a four-hole mounting arrangement positioned on a 4.5-inch (114.3 mm) circle.

Compatibility

The base conforms to NATO-standard mounting dimensions. Verify the required RF connector types and cable routing specifications for both the UHF and optional GPS feeds with the manufacturer.

FAQs

• Why use a ground-plane independent collinear dipole antenna? Ground-plane independent dipoles provide consistent radiation performance regardless of the mounting surface size or material. This allows for flexible placement on vehicles or portable structures without requiring a large metallic counterpoise.
• How does a collinear dipole array affect radiation patterns? A collinear array aligns multiple radiating elements vertically to focus energy toward the horizon. This compresses the elevation beamwidth, increasing the peak gain while maintaining omnidirectional coverage in the azimuth plane.
• What is required for installing a NATO-standard vehicle antenna mount? Verify the vehicle or mounting bracket accepts a four-hole bolt pattern on a 4.5-inch (114.3 mm) circle. Confirm the hardware specifications and torque requirements with the manufacturer to ensure secure attachment during transit.
• Problems we solve: how do we narrow antenna choices? Balancing operating bands, coverage needs and mounting space can make antenna selection difficult. Share those constraints with Cyntony to compare candidate antennas and identify what needs manufacturer confirmation (Our process).
• Outcomes we deliver: what comes from working through the requirements? The practical outcome is a requirements-led set of product options to evaluate with Cyntony. Confirm performance, compatibility and any service scope for your configuration before selection (Our process).

Video Notes

A short technical video demonstrating the mechanical flexibility and impact resistance of the biconical spring base during simulated vehicle transit would strongly support the ruggedness claims of this product.