Ajax ExternalAntenna – LTE & Radio Signal Booster for Hub BP

Ajax ExternalAntenna – LTE & Radio Signal Booster for Hub BP

The Ajax ExternalAntenna is a purpose-built accessory that strengthens cellular and radio communication for Ajax Hub BP and other compatible Ajax control panels. By relocating the antenna beyond thick walls, metal enclosures, or reinforced concrete, it helps the hub maintain a stable connection to the Ajax Cloud and to the wireless devices in your security system, even when the installation environment is challenging.

Key Features

• Multi-channel support: Works across cellular (2G/3G/LTE), Jeweller radio, and Wings radio communication channels.
• Wide frequency coverage: Supports 698–960 MHz and 1,710–2,690 MHz bands for broad carrier and radio compatibility.
• Simple SMA connection: Fitted with a male SMA coaxial connector for a secure plug-in fit to the hub's circuit board.
• Generous cable length: Comes with roughly 3 metres of coaxial cable, giving installers flexibility to position the antenna at the optimal signal location.
• Tamper and breakage detection: If the antenna cable is damaged or cut, the system immediately alerts the user and the monitoring station.
• Automatic fallback: If the external antenna signal weakens or fails, the hub automatically reverts to its built-in antenna so communication is never fully lost.
• Easy adhesive mounting: Includes pre-applied double-sided tape for straightforward, tool-free fixing to a wall or surface.
• Compact, low-profile design: Slim housing that can be discreetly routed through perforated sections of the hub casing or an Ajax Case.

Ideal Applications

This antenna is best suited for installations where the Hub BP is placed inside a safe, a metal cabinet, a basement, or a reinforced concrete room, all of which can severely weaken cellular and radio signals. It is also useful on large commercial sites, warehouses, or multi-storey buildings where distance and structural obstacles reduce the strength of the hub's built-in antennas. Security installers commonly deploy one antenna per required channel (cellular, Jeweller, or Wings) to guarantee consistent, jam-resistant coverage across an entire property.

What's in the Box

• Ajax ExternalAntenna unit with attached coaxial cable
• Pre-applied double-sided adhesive mounting tape
• Male SMA connector for direct hub connection

Frequently Asked Questions

Does the ExternalAntenna need to be paired in the Ajax app?
No. It is a passive accessory and is not listed or controlled as a separate device in the Ajax app; it simply connects directly to the hub's antenna port.

Can one antenna cover all communication channels?
A single unit connects to only one output (cellular, Jeweller, or Wings) at a time, so for full multi-channel coverage, installers typically fit one antenna per channel that needs boosting.

What happens if the antenna cable is damaged?
The hub detects the fault, notifies the user and the monitoring company, and automatically switches back to its internal antenna to keep the system operating.

Additional Resources

• More info: