Ubiquiti airFiber 24: The Sprinter Among Wireless Bridges
In metropolitan areas, the 5 GHz band is often "polluted" by hundreds of WiFi networks. Getting a stable link there is difficult.
The airFiber 24 solves this problem radically: It shifts to the 24 GHz band. It's quiet here, and there is room for speed.
FDD: Transmit and Receive Simultaneously
Most wireless bridges work in TDD mode (Time Division Duplex) – they can either transmit OR receive. This costs time.
The AF-24 masters FDD (Frequency Division Duplex) and HDD. Thanks to its two separate antennas in the housing, it can send and receive data simultaneously. The result is sub-millisecond latency – perfect for VoIP and real-time applications.
Range vs. Physics
24 GHz signals are extremely fast but are more sensitive to heavy rain than 5 GHz signals.
Therefore, the AF-24 is not built for 100 km, but for short to medium distances (up to approx. 5-13 km). Within this range, however, it delivers performance ("availability") that rivals fiber optic cables.
1.4 Gbps Aggregate Speed
Similar to the AF-5, "1.4+ Gbps" means the antenna handles this rate in total (upload + download). It fully utilizes its Gigabit Ethernet Port and delivers true business-class performance.
Detailed Technical Specifications
| System & Performance | |
| Model: | AF-24 (airFiber 24) |
| Frequency Range: | 24.05 – 24.25 GHz (ISM Band) |
| Max. Throughput: | 1.4+ Gbps (Aggregate) |
| Max. Range: | 13+ km (Recommended for high availability: < 5-8 km) |
| Packet Rate: | > 1,000,000 pps |
| Encryption: | 128-Bit AES |
| Antenna (Integrated) | |
| Type: | Dual-Dish (Separate TX/RX Reflector) |
| Gain: | 33 dBi (TX) / 38 dBi (RX) |
| Polarization: | Dual-Slant (MIMO) |
| Beamwidth: | < 3.5° (Extremely Directional) |
| Isolation: | Front-to-Back Ratio: 70 dB |
| Interfaces | |
| Data Port: | 1x 10/100/1000 Ethernet (Gigabit RJ45) |
| Management Port: | 1x 10/100 Ethernet (Out-of-Band) |
| Aux Port: | 1x RJ12 (Alignment Tone) |
| Physical & Power | |
| Dimensions: | 649 x 426 x 303 mm |
| Weight: | 10.5 kg (Mount included) |
| Power Supply: | 50V, 1.2A PoE GigE Adapter (included) |
| Max. Consumption: | 50 W |
| Wind Survival: | Up to 200 km/h |
| Operating Temp: | -40°C to +55°C |
Scope of Delivery
| 1 x Ubiquiti airFiber 24 Unit |
| 1 x Rugged Pole Mount |
| 1 x Gigabit PoE Adapter (50V, 1.2A) |
| 1 x Power Cord |
| Note: Two units are required for a link. |
Homepage: https://www.ui.com
Street name: Von-Bargen-Straße 34
Postal code, City: 22041 , Hamburg
Country: Deutschland
E-Mail: hallo@dajb-hamburg.de
