Ubiquiti airFiber 24 HD: When Gigabit Isn't Enough
The standard airFiber 24 is fast. The airFiber 24 HD is the beast of the series. It looks similar on the outside, but under the hood works an even more powerful version of the Ubiquiti INVICTUS™ processor.
Why "HD"? (High Density)
The decisive advantage of the HD version is Modulation. While the normal model goes up to 64QAM, the HD version masters 256QAM.
Simply put: It packs more data packets into the same radio wave. This results in a massive throughput of 2 Gbps+ (Aggregate). This is ideal if you want to connect corporate locations and really need *every* bit of speed.
Perfect for the City
In cities, the 24 GHz band is a blessing, as 5 GHz is often unusable.
The AF-24HD uses two separate antennas (one transmits, one receives). Thanks to this physical separation and FDD technology (Frequency Division Duplex), there is no waiting time when switching between sending and receiving. The latency is so low that you hardly notice there is no cable.
Range and Weather
Like all 24 GHz systems, the HD version is subject to physics ("Rain Fade"). It is best suited for distances up to 10 km but can bridge up to 20 km in good weather. Thanks to the improved receive antennas (higher gain), it offers slightly more reserves in rain than the standard model.
Detailed Technical Specifications
| System & Performance | |
| Model: | AF-24HD (airFiber 24 HD) |
| Frequency Range: | 24.05 – 24.25 GHz (ISM Band) |
| Max. Throughput: | 2 Gbps+ (Aggregate / Sum) |
| Max. Range: | 20+ km (Recommended for max speed: < 5-10 km) |
| Modulation: | Up to 256QAM (Standard model only 64QAM) |
| Spectral Efficiency: | 15.9 bps/Hz (Extremely high) |
| Encryption: | 128-Bit AES |
| Antenna (Integrated) | |
| Type: | Dual-Dish (Separate TX/RX Reflector) |
| Gain (TX): | 33 dBi |
| Gain (RX): | 40 dBi (Better than Standard Model) |
| 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: | 593 x 768 x 370 mm (Slightly larger than Standard) |
| Weight: | 17.3 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 HD Unit |
| 1 x Heavy-Duty 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
