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menuAF11-Complete Quick Start Guide

Package Contents

airFiber AF-11 Radio*
Zip Ties (Qty. 2)
airFiber Gigabit PoE (50V, 1.2A)
Power Cord
AF-11G35 Antenna
Upper Mount Bracket with Elevation Rod
Lower Mount Bracket
Pole Clamps (Qty. 2)
Azimuth Support Brackets (Qty. 2)
RF Cables (Qty. 2)
Large Carriage Bolts (Qty. 4)
Small Carriage Bolts (Qty. 2)
Serrated Flange Bolts (Qty. 4)
Bolts with Washers (Qty. 4)
Serrated Flange Nuts (Qty. 6)

* Comes with (1) Low-Band or (1) High-Band Duplexer pre-installed for SISO mode. For MIMO mode, a second Duplexer is available, model AF-11-DUP-L or AF-11-DUP-H.

Installation Requirements

Hardware Overview

Low-Band Duplexer

High-Band Duplexer

Chain 0 / Chain 1

When the Chain 0 or Chain 1 duplexer is installed, its N-type connector is located here, allowing connection to an RF cable (Chain 1 is covered by the removable Duplexer Cap).

Signal LEDs

  Signal 4 LED will light blue when on.
Signal 3 LED will light green when on.
Signal 2 LED will light yellow when on.
Signal 1 LED will light red when on.

Bootup to airOS When powering on, the Power, MIMO, LINK, and Signal 1-4 LEDs light on. Once the CPU code takes over, the MIMO, LINK, and Signal 1-3 LEDs turn off. Signal 4 LED remains lit to indicate the boot sequence is underway.

Initializing airFiber Software When the airFiber application begins to boot under airOS, the Signal 4 LED goes from solidly on to a 2.5 Hz flash. This continues until the device is fully booted.

Signal Level Once fully booted, the Signal 1-4 LEDs act as a bar graph showing how close the device is to ideal aiming. This is auto-scaled based on the link range, the antenna gains, and the configured TX power of the remote device. Each Signal LED has three possible states: On, Flashing, and Off. All Signal LEDs would be solidly on in an ideal link. For example, if the link has a 1 dB loss, the Signal 4 LED will flash; a 2 dB loss and the Signal 4 LED will turn off. The full bar graph LED states are shown below.

dB loss
0 -1 -2 -3 -4 -5 -6
-7 -8 -9 -10 -11 -12 -13

Link LED


RF Off








Radio Configured in SISO Mode


Radio Configured in MIMO Mode



No Ethernet Link


Ethernet Link Established

Random Flash

Ethernet Activity

Data LED


No Ethernet Link


Ethernet Link Established

Random Flash

Ethernet Activity

Power LED


No Power


Powered On

Management Port

10/100 Mbps, secured Ethernet port for configuration. In-Band Management is enabled by default in the airFiber Configuration Interface. When In-Band Management is disabled, the MGMT port is the only port that can monitor, configure, and/or update firmware.

Reset Button

To reset to factory defaults, press and hold the Reset button for more than 10 seconds while the device is already powered on.

Data Port

Gigabit PoE port for handling all user traffic and powering the device.


The terminal block can be used to power the AF‑11 radio with +50VDC, 1.2A instead of PoE.

TX 0, RX 0

The TX and RX SMA ports for the Chain 0 Low-Band Duplexer or High-Band Duplexer (SISO and MIMO modes).

RX 1, TX 1

The RX and TX SMA ports for the Chain 1 Low-Band Duplexer or High-Band Duplexer (MIMO mode). In SISO mode, these unused ports are protected by the Duplexer Cap.

N Connector

Female N-type connector to which the antenna cable is attached.

SMA Port

High-band and low-band channel SMA ports.

Note: One Low-Band Duplexer or High-Band Duplexer is pre-installed in the radio for SISO mode. MIMO mode requires two Duplexers of the same band type.

Installation Overview

We recommend that you configure your paired radios before site installation.

Installing the Duplexers

SISO Mode Installation

Each AF-11 radio already contains one Low-Band Duplexer or one High-Band Duplexer for SISO mode. However, before you install the radios, you must ensure that Duplexers in the paired radios are positioned in the reverse order from each other.

Note: For example, if the numbers on the first radio’s Duplexer are (left to right) 1/3, then the numbers on the second radio’s Duplexer should be 3/1.

Radio 1

Radio 2

Ensure that the Duplexers in your paired radios are installed in this manner. For instructions on how to access the Duplexers and remove or install them, see “MIMO Mode Installation”.

MIMO Mode Installation

Note: MIMO operation requires two licenses, one per polarization, and two Duplexers of the same band type.

  1. Note: Position the low channel and high channel ports to yield the required transmit and receive frequencies. Also, ensure that the numbers on the right-side Duplexer are in the reverse order of the numbers on the left-side Duplexer.

  2. WARNING: Tighten the collars alternately, a half turn at a time, until both are fully tightened. Failure to do so may result in damage to the Duplexer.

  3. Repeat steps 1-5 for the other radio in the link, ensuring that the numbers on the second radio’s Duplexers are in the reverse order of the numbers on the first radio’s Duplexers.
  4. Note: For example, if the numbers on the first radio’s Duplexers are (left to right) 2/4 and 4/2, the numbers on the second radio’s Duplexers should be 4/2 and 2/4.

Connecting Power over Ethernet

WARNING: Use only the included adapter, model POE-50-60W. Failure to do so can damage the unit and void the product warranty.

airFiber Configuration

Access the airFiber Configuration Interface and configure the following settings:

Repeat the instructions in the airFiber Configuration section on the other radio.

For details on the airFiber Configuration Interface, refer to the airFiber AF-11FX User Guide, available at: ui.com/download/airfiber

UISP Management

You can manage your device using UISP, which lets you configure, monitor, upgrade, and back up your devices using a single application. Get started at uisp.ui.com

Hardware Installation

Install a Ground Wire

  1. At the installation site, secure the other end of the ground wire to a grounded mast, pole, tower, or grounding bar.

    WARNING: Failure to properly ground your airFiber radio will void your warranty.

    Note: The ground wire should be as short as possible and no longer than one meter in length.

Mount to the airFiber AF-11G35 Antenna

  1. Attach an RF Cable to an RF connector labeled H or V. Then slide the silicone boot over the RF connector to protect it.
  2. Note: For SISO mode, use the RF connector (H or V) as determined by your licensing. Keep the other RF connector covered with the included Metal Cap.

    If using MIMO mode, remove the cap over the second RF connector (V or H) and attach an RF Cable. Then slide the silicone boot over the RF connector to protect it.

  4. Note: Align the dot on the side of the shroud with the arrowhead on the dish antenna.

Connecting Data

  1. If you are using DC power, connect the other end of the Ethernet cable to your LAN.

Connecting Power

Follow the instructions for the source of power that you are using:

Power Over Ethernet

WARNING: Use only the included adapter, model POE-50-60W. Failure to do so can damage the unit and void the product warranty.

DC Power

  1. Connect a DC power cable to the Terminal Block. (The +VDC and GND can be connected to either terminal.)

  2. Connect the other end of the DC power cable to a DC power supply that supplies +50VDC.
  3. WARNING: Applying a negative voltage such as -48VDC will damage the radio.

  4. Connect the DC power supply to its source.



Establishing a Link

Adjust the positions of the Master and the Slave to establish a link. The following section features the airFiber X antenna, AF-11G35:

Note: The Master must be aimed first at the Slave because the Slave does not transmit any RF signal until it detects transmissions from the Master.

  1. Master Visually aim the Master at the Slave. To adjust the Master’s position, adjust the azimuth and the elevation.

    Adjust the azimuth:

    1. Loosen the four flange nuts on the two pole clamps.
    2. Rotate the antenna to point towards the other end of the link.
    3. Tighten the four flange nuts on the two pole clamps.

    Adjust the elevation angle:

    1. Loosen the eight hex head bolts so that the washers can spin freely by hand.
    2. Tighten or loosen the Elevation Adjustment Bolt to set the desired tilt.
    3. Tighten the eight hex head bolts.

  2. Note: Do NOT make simultaneous adjustments on the Master and Slave.

  3. Slave Visually aim the Slave at the Master. To adjust the Slave’s position, adjust the azimuth and elevation as described in step 1.
  4. Check to see if a link is established. Ensure that the LINK LED is solidly lit green and the Signal LEDs of the Slave are displaying signal levels.

  5. Slave Aim the Slave at the Master to achieve the strongest signal level on the Master.

    Note: Refer to the Signal LEDs section for details on the signal values.

    Note: Maximum signal strength can best be achieved by iteratively sweeping through both azimuth and elevation.

  6. Master Aim the Master at the Slave to achieve the strongest signal level on the Slave.
  7. Repeat steps 4 and 5 until you achieve an optimal link, with all four Signal LEDs solidly lit. This ensures the best possible data rate between the airFiber radios.
  8. Lock the alignment on both airFiber antennas by tightening all the nuts and bolts.
  9. Observe the Signal LEDs of each airFiber radio to ensure that the values remain constant while tightening the nuts and bolts. If any LED value changes during the locking process, loosen the nuts and bolts, finalize the alignment of each airFiber antenna again, and retighten the nuts and bolts.

For detailed information on setting up an airFiber link, see the airFiber AF-11FX User Guide available at: ui.com/download/airfiber

Installer Compliance Responsibility

Devices must be professionally installed and it is the professional installer’s responsibility to make sure the device is operated within local country regulatory requirements.

The Output Power, Antenna Gain, Cable Loss*, TX Frequency and RX Frequency fields are provided to the professional installer to assist in meeting regulatory requirements.

* Cable Loss includes loss due to the Duplexer(s).


airFiber AF-11


327 x 112 x 86 mm (12.87 x 4.41 x 3.39")


2.26 kg (5.0 lb)

RF Connectors

(4) SMA Weatherproof, Two per Chain:
TX 0, RX 0 (Chain 0) and TX 1, RX 1 (Chain 1)
(2) N-Type Waterproof, One per Duplexer

Power Supply

50V, 1.2A PoE Gigabit Adapter (Included)

Power Method

Passive Power over Ethernet, DC Power Block

Supported Voltage Range



FCC Part 101, ETSI EN 302 217


AF-11G35 Mount Compatible

Operating Temperature

-40 to 55° C (-40 to 131° F)

Networking Interface

Data (1) 10/100/1000 Ethernet Port
Management (1) 10/100 Ethernet Port




Maximum Throughput

1.2+ Gbps


128-bit AES


airOS F

Wireless Modes



Operating Frequency

10.7-11.7 GHz
(Depends on Regulatory Region1)

Max. Conducted TX Power

30 dBm
(Depends on Regulatory Region1)

Frequency Accuracy

± 1 ppm

Channel Bandwidth

3.5/5/7/10/14/20/28/30/40/50/56 MHz Selectable2

Programmable Uplink and Downlink Duty Cycles

1For region-specific details, refer to the Compliance chapter of the airFiber AF-11FX User Guide at ui.com/download/airfiber
2Channel widths may vary according to country/region regulations.

airFiber AF-11G35


811 x 811 x 460 mm
(31.9 x 31.9 x 18.1")


Mount Not Included 7.14 kg (15.74 lb)
Mount Included 11.85 kg (26.12 lb)


10.3 to 11.7 GHz


35 dBi

HPOL Beamwidth


VPOL Beamwidth


Maximum VSWR


Wind Loading

1538 N @ 200 km/h
(346 lbf @ 125 mph)

Wind Survivability

200 km/h (125 mph)


Default H/V
After Rotating OMT ± 45°

Cross-Pol Isolation

35 dB


Pole Mount

Pattern Regulatory

ETSI 302 217-4-2, Class 3 and FCC Cat B