AD-12/G — Wideband UHF Dipole Antenna

Overview

The AD-12/G is a wideband UHF dipole antenna operating across the 420 to 520 MHz frequency range. Built for both stationary and portable deployments, the antenna integrates a robust epoxy-glass composite radome to protect its grounded internal components and ensure a long service life.

Technical Summary

• Frequency Range: 420 - 520 MHz
• Gain: 0 - 2 dBi
• Impedance: 50 ohms
• Maximum Power: 100 W CW
• Polarization: Vertical
• Connector Type: N

Operational Use Cases

• Monitoring applications
• Secure communications
• Tactical communications

Deployment Environments

Intended for fixed site and tactical platforms. All metal parts are grounded and sealed within the composite radome to provide excellent resistance against atmospheric influences during stationary or portable field deployments.

Performance Metrics

Electrically designed as a dipole, this antenna utilizes capacitive distributed loading on the upper radiating element. It supports up to 100 W CW maximum power while delivering 0 to 2 dBi of gain across its operating band.

Setup & Portability

The antenna mounts directly onto any metal tube with an inner diameter greater than 30 mm and an outer diameter less than 43 mm, such as standard 1 1/4-inch tubes. It can also be installed using standard mounting console and adapter elements (ADK).

FAQs

• How do I ensure an antenna safely matches a transmitter? Verify the operational frequency range aligns with your system and confirm the antenna can continuously withstand the transmitter's maximum power output.
• What does vertical polarization signify? It indicates that the radiated electric field is oriented vertically relative to the earth. For optimal signal transfer, ensure both the transmitting and receiving antennas share this orientation.
• Does a dipole antenna require a ground plane? Unlike a monopole, a dipole is a complete electrical structure that does not rely on an external ground plane to function. Confirm specific installation clearances with the manufacturer.
• 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 changed for Espy's compact monitoring system? Cyntony helped Espy source antennas that fitted a compact transit case and coordinated later sourcing revisions for removable mounting. This documented result concerns Espy's system; it does not establish this product's dimensions, mounting features or performance (Espy case study).

Video Notes