AD-18/G-40600 — Mobile Wideband UHF/SHF Dipole Antenna

Overview

The AD-18/G-40600 is a robust wideband UHF/SHF center-fed dipole antenna designed for continuous coverage from 400 to 6000 MHz. Built for heavy-duty mobile applications, it handles high-power communication and jamming requirements while offering an optional integrated GPS module to minimize vehicle footprint.

Technical Summary

• Frequency Range: 400 to 6000 MHz (UHF, L, S, C bands)
• Power Handling: Up to 500 W CW at 500 MHz (scales to 50 W at 6000 MHz)
• Polarization: Vertical (Main Dipole), RHCP (Optional GPS)
• Gain: -2 to +4 dB
• Base: Shock-absorbing stainless steel spring

Operational Use Cases

• Counter-RCIED and high-power jamming operations
• Tactical vehicle communications
• Secure, wideband mobile communication networks

Deployment Environments

Engineered for tactical ground vehicles, this antenna features a durable aluminum and plastic base paired with an epoxy composite radiator tube. A stainless steel spring absorbs shocks and vibrations encountered in harsh, mobile environments.

Performance Metrics

Setup & Portability

The antenna integrates a standard NATO 4-hole mounting flange for straightforward vehicle integration. The optional L1 GPS antenna is situated within the base and requires an independent SMA connection.

Compatibility

Mounts to standard NATO 4-hole vehicle interfaces. The optional active GPS element connects via a dedicated SMA connector.

FAQs

• What is the typical radiation pattern of a vertically polarized dipole antenna? A vertical dipole normally produces an omnidirectional azimuth pattern with a characteristic donut shape. Gain is maximized at the horizon, with radiation nulls directed toward the zenith and nadir.
• How is the optional GPS antenna connected? The integrated active L1 GPS antenna is located within the base and requires an independent SMA connection to the host receiver.
• How does operating frequency affect power handling capability? Maximum continuous wave (CW) power handling typically decreases at higher frequencies due to thermal limits in the antenna's components. Verify the frequency-specific power rating for your required transmission band.
• 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 did Cyntony's tactical-link field test establish? Cyntony's 2025 XTND-DIRECT field test showed how terrain, antenna height and clearance affected a specific mesh-radio link. The result informs deployment questions; it does not establish range, throughput or suitability for this product (Field-test account).

Video Notes