Ubiquiti Networks airFibe24 - Manual (Page 13)

10
Chapter 2: Installation airFiber ® AF24 User Guide
Ubiquiti Networks, Inc.
Alignment
Tips
• We recommend using a pair of installers in constant
communication because in the fine-tuning stage, one
installer makes azimuth and elevation adjustments
on one airFiber radio while the other installer reports
the received signal level at the other airFiber radio.
(Fine-tuning is necessary because the main lobe of the
receiver is more narrow than that of the transmitter, in
both azimuth and elevation.)
• To accurately align the airFiber radios for best
performance, you MUST align only one end of the link at
a time.
• For more convenient alignment, you may consider using
long-range scopes (not included) temporarily attached
to your airFiber radios.
• You may need to use additional hardware to
compensate for issues such as the improper orientation
of a mounting pole or significant elevation differences
between the airFiber radios.
Determining the Received Signal Level
There are three methods for determining the received
signal level:
• LED Display (See the next column.)
• airFiber Configuration Interface (See “Using the
airFiber Configuration Interface” on page 12.)
• Audio tone (Optional equipment required. See “Using
the Audio Tone” on page 14.)
Using the LED Display
Establishing a Preliminary Link
Adjust the positions of the Master and the Slave to
establish a preliminary link. This requires the Master
and Slave to be within a few degrees of the line of sight
between the airFiber radios.
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. For the Master and Slave, ensure the eight Lock Bolts on
the Alignment Bracket are sufficiently loose by spinning
each washer by hand.
WARNING: All Lock Bolts MUST be loose to avoid
damage to the airFiber housing.
2. For the Master and Slave, ensure the Azimuth (AZ) and
Elevation (EL) Adjustment Bolts are in the middle of their
adjustment ranges.
Elevation (EL)
Adjustment Bolt
Azimuth (AZ)
Adjustment Bolt