Ubiquiti airFiber Multiplexer 4-Port (AF-MPx4)

The Ubiquiti airFiber Multiplexer 4-Port (AF-MPx4) is a specialized accessory designed to enhance the functionality and scalability of Ubiquiti’s airFiber 11 GHz radios. Specifically tailored for the airFiber 11FX system, this multiplexer enables true 2x2 MIMO configurations by supporting the operation of two airFiber radios on a single high-gain dish antenna. This allows network operators to dramatically increase throughput and link reliability while conserving space and reducing installation complexity on tower infrastructure.

The AF-MPx4 is constructed for seamless integration with the AF-11FX radio and the AF-11G35 11 GHz 35 dBi antenna. It provides four RF ports—two for each radio—which allows simultaneous operation of both radios in either dual-polarity or dual-channel mode. This dual-radio setup effectively doubles the available bandwidth by enabling each radio to handle separate data streams, increasing overall capacity and enabling higher throughput performance of over 1.2+ Gbps when fully utilized. It is an ideal solution for service providers, data carriers, and enterprise users who require high-capacity wireless backhaul solutions over licensed 11 GHz spectrum.

Designed with RF efficiency and link clarity in mind, the AF-MPx4 ensures minimal signal loss and optimal impedance matching between the radios and the antenna. It is manufactured using high-grade materials and precision-engineered connectors to support the frequency range of 10.7 to 11.7 GHz, covering both low and high bands within the 11 GHz licensed spectrum. This allows the use of one multiplexer configuration across multiple deployment scenarios without requiring frequency-specific variants, giving network engineers more flexibility in link planning.

In terms of physical design, the AF-MPx4 is built to withstand outdoor conditions. Its robust enclosure and weather-sealed RF connectors protect it from rain, dust, and UV radiation. The multiplexer mounts directly onto the back of the AF-11G35 antenna, maintaining a clean and consolidated form factor while simplifying installation and alignment procedures. The accessory is designed to complement Ubiquiti’s rugged airFiber ecosystem, ensuring mechanical compatibility and ease of deployment.

When used in conjunction with airFiber radios and antennas, the AF-MPx4 supports centralized management through Ubiquiti’s UISP (Ubiquiti Internet Service Provider) platform. This integration allows administrators to monitor link health, signal strength, data throughput, and overall system performance in real time from a single dashboard.

In summary, the Ubiquiti airFiber Multiplexer 4-Port (AF-MPx4) is a vital tool for scaling up licensed 11 GHz wireless backhaul links. By enabling dual-radio MIMO operation over a single antenna, it offers increased throughput, efficient spectrum use, and a simplified, space-saving deployment model ideal for demanding wireless networking environments.