The Ubiquiti airFiber 5U (Model: AF-5U) is a carrier-grade Point-to-Point (PtP) wireless backhaul bridge designed for long-distance, high-throughput network connectivity. Specifically tuned for the upper 5 GHz frequency spectrum ($5.7\text{ GHz}$ to $6.2\text{ GHz}$), the airFiber 5U allows network operators to bypass congested lower 5 GHz channels, delivering superior noise immunity and exceptional link reliability across extended distances.
Powered by Ubiquiti's proprietary INVICTUS custom silicon and Hybrid Division Duplexing (HDD) technology, the AF-5U achieves high spectral efficiency, sub-millisecond latency, and real-world aggregate throughput exceeding $1.2\text{ Gbps}$. Its iconic mechanical architecture features two independent high-gain slant 45-degree parabolic reflector dishes mounted on a single rigid chassis—one dedicated to transmitting and the other to receiving. Equipped with Gigabit Ethernet, auxiliary management ports, integrated GPS clock synchronization for co-location deployment, and an interactive LED alignment display, the AF-5U is built for ISP backhauls, enterprise building-to-building links, and mission-critical infrastructure.
Comprehensive Key Features:
Upper 5 GHz Frequency Band: Operates within $5.7\text{ GHz} - 6.2\text{ GHz}$ to avoid interference in congested $5.1 - 5.8\text{ GHz}$ environments.
1.2+ Gbps Aggregate Throughput: High-speed data throughput powered by Ubiquiti’s custom INVICTUS processing architecture.
Long-Range Performance: Capable of establishing high-speed wireless backhaul links extending up to $100+\text{ km}$ ($60+\text{ miles}$).
Dual Independent Dish Optics: Separate high-gain parabolic reflector dishes for Tx and Rx eliminate duplexing isolation losses.
Hybrid Division Duplexing (HDD): Combines the latency benefits of Frequency Division Duplexing (FDD) with the spectral efficiency of Time Division Duplexing (TDD).
GPS Clock Synchronization: Built-in GPS synchronization prevents co-location self-interference on shared towers.
Extended Technical Specifications:
Manufacturer / Brand: Ubiquiti Inc.
Model / SKU: airFiber AF-5U
Operating Frequency: $5725\text{ MHz}$ to $6200\text{ MHz}$ (Upper 5 GHz Band)
Maximum Throughput: $1.2+\text{ Gbps}$
Maximum Range: $100+\text{ km}$ ($62\text{ miles}$)
Transmit Power: Up to $50\text{ dBm}$ (EIRP, region-dependent)
Antenna Gain: $23\text{ dBi}$ (Tx and Rx parabolic reflectors)
Polarization: Dual Slant 45°
Networking Interfaces:
(1) 10/100/1000 Mbps Ethernet Port (Data & Passive PoE In)
(1) 10/100 Mbps Ethernet Port (Management)
Power Supply: 50V, 1.2A PoE GigE Adapter (Included)
Max Power Consumption: 50 Watts
Operating Temperature: $-40^\circ\text{C}$ to $+55^\circ\text{C}$ ($-40^\circ\text{F}$ to $+131^\circ\text{F}$)
Mounting: Pole Mount Bracket Included