The airFiber 5 from Ubiquiti is a 5GHz Full Duplex, PTP radio housed in a compact, a highly efficient form factor that delivers amazing wireless gigabit+ performance, low latency, and long-range. The airFiber 5 is ideal for carrier backhaul, building-to-building enterprise use, or public safety applications. 

The airFiber 5 is able to achieve this through: 

Its innovative antenna design:

airFiber features a dual-independent, 2×2 MIMO, high-gain reflector antenna system. Separate yet integrated transmit (TX) and receive (RX) antennas help extend link budgets by eliminating the extra RF losses caused by the switches or duplexers required in systems with common TX/RX antennas. The 45⁰ slanted antennas cut through interference with up to 3dB added noise isolation. 

Its high-speed capabilities and range:

airFiber delivers gigabit performance at 1.2+ Gbps. To put this in perspective, airFiber can transmit a 100 MB file in less than a second. Rivalling common broadband providers, airFiber download speed is up to 100x faster. With speed and throughput surpassing conventional wired backhauls, airFiber prevails over expensive and labour-intensive wired infrastructures. airFiber is built for short to medium range use.

Low-Latency:

Conventional wireless standards impose a latency by having to receive a packet before a packet is transmitted. airFiber can transmit data synchronously without any wait time. airFiber features traditional TDD and FDD modes of operation in addition to the proprietary Hybrid Division Duplexing (HDD) mode, which provides a breakthrough in range and spectral efficiency performance.

Based on the ranging algorithm built into the air protocol, the airFiber radios use patent-pending HDD technology to calculate the propagation delay and know when each radio can transmit and receive, so they send packets in precise synchronization. Packet transmission latency is virtually eliminated. 

5GHz Unlicensed Band:

airFiber operates in worldwide, license-free, 5 GHz frequency. Anyone around the world can purchase and operate airFiber without any special permits, paperwork, or added licensing costs. Users are free to locate, deploy, and operate airFiber practically anywhere they choose (subject to local country regulations).