ExternalAntenna: Reliable Security Communication Where Signals Struggle
- David Ryder
- Nov 24, 2025
- 3 min read
Updated: Dec 24, 2025
A security system is only as strong as its communication. In environments filled with reinforced concrete, metal structures, underground locations, or enclosed spaces, radio and cellular signals can weaken or fail entirely. That’s where ExternalAntenna becomes essential.
ExternalAntenna is a professional-grade accessory designed to enhance LTE, cellular, and Ajax radio communication in challenging environments. It allows critical security signals to pass through barriers that typically block or degrade performance—ensuring stable, uninterrupted connectivity when it matters most.
At WC Security Services (WCSS), ExternalAntenna is used to strengthen Ajax systems in locations where signal reliability cannot be left to chance.
Designed for Challenging Environments
Certain locations are notorious for poor signal performance. ExternalAntenna is ideal for installations in:
Warehouses and industrial facilities
Underground parking garages
Reinforced concrete buildings
Metal enclosures and safe boxes
Factories and wind turbines
Office buildings with heavy structural shielding
Residential properties with signal dead zones
By placing the antenna outside the obstructed area, WCSS ensures the hub can communicate clearly using Jeweller, Wings, or cellular channels.
One Antenna. Three Communication Channels.
ExternalAntenna is a versatile, triple-purpose solution that supports:
Jeweller (primary radio communication)
Wings (visual data and backup communication)
2G / 3G / 4G / LTE cellular channels
Covering frequency bands from 698–960 MHz and 1,710–2,690 MHz, a single antenna can be configured to optimize the selected communication channel—eliminating the need for multiple antennas or complex hardware.
Built-In Protection Against Sabotage and Failure
Security communication must be protected just like sensors and detectors.
ExternalAntenna includes cable breakage detection. If the cable is:
Cut
Severed
Damaged
Or even partially weakened
The system sends an instant alert to both users and the monitoring centre (available with supported hubs). Even if communication is not completely lost, the system still reports the issue.
If a problem is detected, the hub automatically switches back to its internal antennas and notifies all relevant parties—ensuring continuous protection.
Simple Installation, Professional Results
ExternalAntenna is designed for fast, clean installation:
Standard SMA connector for secure attachment
Up to 3 metres (9.8 ft) of cable for flexible placement
Mounted using double-sided adhesive tape
Routed through hub mounting holes or Ajax Case without modifying the system
As an accessory, ExternalAntenna does not require app pairing or user control—it works silently in the background, strengthening communication while remaining fully monitored.
Real-Time Connection Monitoring
Even though ExternalAntenna is not added or controlled via the app, the system continuously monitors the connection integrity.
This means:
Issues are detected immediately
Maintenance teams are alerted early
Downtime is minimized
System reliability is preserved
For WCSS clients, this translates into fewer disruptions and stronger system uptime, even in harsh environments.
Why WC Security Services Uses ExternalAntenna
At WC Security Services, we design systems based on real-world conditions, not ideal ones.
ExternalAntenna allows us to:
Deploy Ajax systems in locations others avoid
Maintain strong communication through concrete and metal
Ensure monitoring signals always reach the control centre
Add redundancy and resilience to high-risk sites
Deliver professional-grade security without compromise
