Ubiquiti airFiber AF-3G26-S45
3 GHz, 26 dBi Slant 45 Antenna for airFiber

Ubiquiti airFiber AF-3G26-S45

Ubiquiti Products
airFiber X Antenna
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airFiber X AntennaOverview:

The airFiber X Antennas feature significant advances in noise isolation and beam performance to complement the airFiber X radios for carrier backhauls and Point-to-Point (PtP) bridging (airFiber X radio sold separately).

Powerful Performance

The airFiber X antenna delivers 2x2, dual-polarity performance. On the right is one example of how the airFiber X antenna with an airFiber X radio can be deployed as endpoints in a backhaul link to deliver bandwidth from a WISP network out to a neighborhood tower. From there, an airMAX Sector antenna with a Rocket radio delivers bandwidth to the WISP's customers.

Application Example
Application Example

Carrier-Class Construction

Incorporating a dish reflector design for excellent beam directivity, the airFiber X antennas feature robust mechanical design using industrial‑strength hardware for outdoor application use.

Plug and Play Integration

airFiber X antennas and airFiber X radios have been designed to seamlessly work together. Every airFiber X antenna has a built-in airFiber X radio mount, so installation requires no special tools. Snap the airFiber X radio securely into place and mount the antenna; you then have the optimal combination of airFiber X antenna and airFiber X radio for your PtP application.

Mounting the AF-5X (airFiber X radio sold separately)
Mounting the AF-5X (airFiber X radio sold separately)


Innovative Mechanical DesignInnovative Mechanical Design

  • Secure Pole-Mounting
    Maintains the position of the dish during harsh outdoor conditions.
  • Low-Profile Form Factor of the AF-5G23-S45
    Reduces wind-loading.

Weatherproof Design

  • Protective Shroud
    Protects the cables and connectors from the elements.
  • Integrated Radome of the AF-5G23-S45
    Shields the radio from the environment.

Compact Footprint for Deployment Flexibility

The compact form factor allows the airFiber X Antennas to be used in various applications, from carrier backhauls between towers to PtP bridging between buildings.

The airFiber X supports ± 45° slant polarization for improved noise immunity and Signal-to-Noise Ratio (SNR). The compact form factor of the airFiber X allows it to fit into the radio mount of Ubiquiti antennas, so installation requires no special tools.

The airFiber X antennas are purpose-built with 45° slant polarity for seamless integration with the airFiber X.

Compact Footprint for Deployment Flexibility

Avanced RF Isolation Design

The innovative industrial design improves RF isolation to significantly reduce interference and deliver superior gain for high-capacity, multipoint networks. The near-field plot of the AF-5G23-S45 is displayed in watts and uses a linear scale. The strength of the electromagnetic field is color-coded:

  • Red: Highest strength
  • Green: Medium strength
  • Indigo: Lowest strength

Avanced RF Isolation Design

airFiber X Conversion Kit

The 5 GHz RocketDish to airFiber Antenna Conversion Kit, model AF-5G-OMT-S45, converts the RocketDish RD-5G30 or RD-5G34 antenna for use with the airFiber AF-5X radio.

airFiber X Conversion Kit

Product Views:


Rear View with airFiber X radio
(airFiber X radio sold separately)
Side View
Side View

Fully Assembled Back View
Fully Assembled Back View


airFiber AF-3G26-S45 Specification
Dimensions* ø 650 x 300 mm (ø 25.59 x 11.81")
Weight** 9.8 kg (21.61 lb)
Frequency Range 3.3 - 3.8 GHz
Gain 26 dBi
+ 45° Beamwidth 7° (3 dB)
- 45° Beamwidth 7° (3 dB)
F/B Ratio 33 dB
Max. VSWR 1.4:1
Wind Loading 787 N @ 200 km/h (177 lbf @125 mph)
Wind Survivability 200 km/h (125 mph)
Polarization Dual-Linear
Cross-pol Isolation 35 dB Min.
ETSI Specification EN 302 326 DN2
Mounting Universal Pole Mount, airFiber X Radio Bracket, and Weatherproof RF Connectors Included

* Dimensions exclude pole mount and airFiber X radio (airFiber X radio sold separately)
** Weight includes pole mount and excludes airFiber X radio (airFiber X radio sold separately)

Package Contents

Antenna Information:

Return Loss
AF-3G26-S45 Return Loss
Azimuth, 3550 MHz
AF-3G26-S45 Azimuth, 3550 MHz
Azimuth Specs
AF-3G26-S45 Azimuth Specs
Elevation, 3550 MHz
AF-3G26-S45 Elevation, 3550 MHz
Elevation Specs
AF-3G26-S45 Elevation Specs


airOS on MonitorairOS
Loaded with Powerful Features

airOS F is an intuitive, versatile, highly developed Ubiquiti firmware technology that resides on airFiber. It is exceptionally intuitive and was designed to require no training to operate. Behind the user interface is a powerful firmware architecture which enables hi-performance network backhauls.

airOS F Tools

  • Speed Test
  • Antenna Alignment
  • Device Discovery
  • Site Survey
  • Ping
  • Traceroute

airOS F Integrated Technologies

airFiber's purpose-built hardware provides superior wireless performance, higher capacity, and lower latency. Unlike standard WiFi protocols, Ubiquiti airFiber's Hybrid Division Duplex (HDD) provides the best of both worlds — latency performance of Frequency Division Duplex (FDD) with the spectral efficiency of Time Division Duplex (TDD).

Wireless Modes
  • Master
  • Slave

Wireless Network Configuration

  • Transmit Frequency
  • Receive Frequency
  • Output Power
  • Modulation Rate
  • Automatic Modulation Rate Adaptation
  • Duplex: Half or Full
  • High/Low RX Gain
  • Wireless Security: AES-128

Network Mode

  • Transparent Layer 2 Bridge

Network Configuration

  • In-Band Management
  • Management VLAN
  • Automatic check for airOS F Updates
  • Configuration Test Mode
  • Firmware Recovery via TFTP
  • Reset to Factory Defaults
  • Configuration Management: Backup/Restore Device Configuration
  • Administrator/Read-Only Access
  • WEB/SSH/Telnet Access
  • Dynamic DNS
  • NTP Client
  • Ping Watchdog
  • SNMP v1 Support
  • System Log: Local/Remote
  • Full Statistical Performance Reporting


  • Speed Test
  • Antenna Alignment
  • Device Discovery
  • Ping
  • Traceroute


Download the Ubiquiti airFiber X Antennas Datasheet (PDF).

Pricing Notes:

Ubiquiti Products
airFiber X Antenna
Get a Quote!