


Ubiquiti
Ubiquiti PowerBeam AC, antenna 400mm 2,4 GHz AC 25dBi AirMax CPE PBE-2AC-400
SKU: pbe-2ac-400|6 ready to ship
Description
The Ubiquiti PowerBeam AC is a 2.4 GHz airMAX ac high-performance directional wireless bridge with a 400 mm reflector antenna, designed for long-range point-to-point links. A dedicated Wi-Fi management radio simplifies setup, while the custom Ubiquiti airMAX ac processor delivers total throughput of over 450 Mbps.
Key Benefits at a Glance
airMAX ac protocol for long-range PtP links at 2.4 GHz
Dedicated Wi-Fi management radio for out-of-band device management
400 mm reflector antenna with 18 dBi gain and mechanical tilt adjustment of ±20°
Over 450 Mbps total throughput, including over 330 Mbps real TCP/IP throughput
airOS 8 operating system with automatic channel selection and ACK timing
WPA2 encryption and NDAA compliance
Performance & Wireless Technology
The PowerBeam AC operates in the 2.4 GHz band and supports the airMAX ac protocol for long-range point-to-point connections. The operating frequency ranges from 2412 to 2472 MHz worldwide, and from 2412 to 2462 MHz in the USA and Canada. Selectable channel widths of 10, 20, or 40 MHz are available in both PtP and PtMP modes. Total throughput exceeds 450 Mbps, with real TCP/IP throughput over 330 Mbps.
Transmit power is rated at 27 dBm with a tolerance of ±2 dB. Modulation supports up to 8x 256QAM, though transmit power decreases to 22 dBm at 8x 256QAM (5/6). Receiver sensitivity ranges from -92 dBm at 1x BPSK (½) to -67 dBm at 8x 256QAM (5/6), each with ±2 dB tolerance. The device is powered by a custom Ubiquiti airMAX ac processor based on the MIPS 74Kc core.
Enclosure & Mounting
The 400 mm reflector antenna achieves 18 dBi gain. The enclosure is made of UV-stabilized plastic and powder-coated SPCC. With the radome, the device measures 420 x 420 x 289 mm and weighs 1.8 kg; including mounting hardware, the total weight is 1.795 kg. A mast mounting kit is included.
Mechanical tilt adjustment allows ±20° vertical alignment. The device withstands wind speeds up to 200 km/h (125 mph), with a wind load of 342.5 N. Four LEDs indicate signal strength, while additional LEDs show power and Ethernet status. A reset button restores factory settings.
Power & Interfaces
The network interface consists of a single GbE RJ45 port. Power is supplied via passive PoE (2-pair: pins 4, 5+; 7, 8 return), with a supported voltage range of 20–27V DC. A 24V, 0.5A Gigabit PoE adapter is included. Maximum power consumption is 7.5W. ESD/EMP protection is rated at ±24 kV for air and contact discharge.
Management & Security
The PowerBeam AC is managed by airOS 8. Automatic channel selection identifies clear frequencies, while automatic distance selection adjusts ACK timing. Transmit power control can be set to automatic or manual. A dedicated Wi-Fi management radio operates separately from the main band, using 5150–5250 MHz worldwide or U-NII-3 (5725–5850 MHz) in the USA. Encryption is provided via WPA2.
Environmental Testing & Certifications
The device is designed for operation in temperatures from -40 to 70°C and humidity levels of 5 to 95% non-condensing. It undergoes multiple environmental tests: vibration testing per IEC 68-2-6, temperature shock testing per IEC 68-2-14, UV testing per IEC 68-2-5 at 40°C, salt fog testing per IEC 68-2-11 (equivalent to MIL-STD-810 G Method 509.5), and wind-driven rain testing per ETS 300 019-1-4 (equivalent to MIL-STD-810 G Method 506.5).
Certifications include FCC, IC, and RoHS. The device is NDAA-compliant. The warranty covers 12 months.
Technical Specifications
Operating frequency: 2.4 GHz (2412–2472 MHz worldwide; 2412–2462 MHz USA/Canada)
Antenna type: Reflector antenna, 400 mm
Antenna gain: 18 dBi
Total throughput: 450+ Mbps
Real TCP/IP throughput: 330+ Mbps
Output power: 27 dBm (±2 dB)
Modulation: 1x BPSK (½) to 8x 256QAM (5/6)
Receiver sensitivity: -92 dBm to -67 dBm (±2 dB)
Channel width: 10/20/40 MHz (PtP and PtMP)
Link mode: Long-Range Point-to-Point (PtP)
Processor: Custom Ubiquiti airMAX ac (MIPS 74Kc)
Memory: 64 MB
Operating system: airOS 8
Management radio: Dedicated Wi-Fi radio (5150–5250 MHz worldwide; U-NII-3 5725–5850 MHz USA)
Network interface: 1× GbE RJ45 port
Power supply: Passive PoE 2-pair (4, 5+; 7, 8 return)
PoE adapter: 24V, 0.5A Gigabit (included)
Voltage range: 20–27V DC
Max power consumption: 7.5W
ESD/EMP protection: ±24 kV (air/contact)
Tilt adjustment: ±20°
Dimensions (with radome): 420 x 420 x 289 mm
Weight: 1.8 kg (1.795 kg with mounting hardware)
Enclosure material: UV-stabilized plastic, powder-coated SPCC
Mounting: Mast mounting kit (included)
Wind survivability: 200 km/h (125 mph)
Wind load: 342.5 N at 200 km/h (77 lbf at 125 mph)
Operating temperature: -40 to 70°C (-40 to 158°F)
Operating humidity: 5 to 95% non-condensing
LEDs: Power, Ethernet, (4) signal strength
Buttons: (1) reset to factory defaults
Security: WPA2
NDAA-compliant: Yes
Warranty: 12 months
Vibration test: IEC 68-2-6
Temperature shock test: IEC 68-2-14
UV test: IEC 68-2-5 at 40°C (equivalent: ETS 300 019-1-4)
Salt fog test: IEC 68-2-11 (equivalent: MIL-STD-810 G Method 509.5)
Wind-driven rain test: ETS 300 019-1-4 (equivalent: MIL-STD-810 G Method 506.5)
AI Fact Sheet
## Ubiquiti PowerBeam AC, antenna 400mm 2,4 GHz AC 25dBi AirMax CPE PBE-2AC-400
Ubiquiti PowerBeam AC, antenna 400mm 2,4 GHz AC 25dBi AirMax CPE PBE-2AC-400 is a Ubiquiti product.
The Ubiquiti PowerBeam AC is a 2.4 GHz airMAX ac high-performance directional wireless bridge with a 400 mm reflector antenna, designed for long-range point-to-point links. A dedicated Wi-Fi management radio simplifies setup, while the custom Ubiquiti airMAX ac processor delivers total throughput of over 450 Mbps.
Key facts:
- Supported Frequency Range - Worldwide: 5150-5250 MHz
- Supported Frequency Range - US/CA: U-NII-3: 5725-5850 MHz
- Frequency: 2.4 GHz
- Gain: 18 dBi
- Output Power: 27 dBm
- TX Power Specifications (Modulation: 1x BPSK (½)): 27 dBm ± 2 dB
- TX Power Specifications (Modulation: 2x QPSK (½)): 27 dBm ± 2 dB
- TX Power Specifications (Modulation: 2x QPSK (¾)): 27 dBm ± 2 dB
Price: €120.29 (excl. VAT). Availability: Available.
Downloads:
- Datasheet: https://shop.ascend.de/api/products/by-mpn/pbe-2ac-400/documents/1594758?v=8891efdc41b1
More: https://shop.ascend.de/en/products/ubiquiti-powerbeam-pbe-2ac-400
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