SMC Networks EliteConnect SMC2891W-AG User Manual page 47

The signal strength LEDs indicate the received radio signal strength for a particular
bridge link. The more LEDs that turn on, the stronger the signal. Alternatively, you
can monitor the Receive Signal Strength Indicator (RSSI) value directly from the
management interface. The higher the RSSI value, the stronger the signal.
When you move the antenna during alignment, the radio signal from the remote
antenna can be seen to have a strong central main lobe and smaller side lobes. The
object of the alignment process is to set the antenna so that it is receiving the
strongest signal from the central main lobe.
Remote
Antenna
Horizontal Scan
Main Lobe
Maximum
RSSI
Value
Maximum Signal Strength Position
To align the antennas in the link, monitor the signal strength LEDs or the RSSI value
in the management interface. Start with one antenna fixed and then perform the
following procedure on the other antenna:
Note: The RSSI value can be configured through management interfaces to display a
value for specific WDS bridge links. See page 6-40 for more information.
High 11a Signal
Medium 11a Signal
Low 11a Signal
Vertical Scan
for Horizontal Alignment
11b/g
11a
11b/g
11a
11b/g
11a
Align Antennas
Strength Position for
Vertical Alignment
RSSI Value
Side Lobe
Maximum
Power
Link
Power
Link
Power
Link
4
Maximum Signal
4-9