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Chapter 3
| AP Chassis
How to Align Antennas
How to Align Antennas
3.
Apply weatherproofing tape to the antenna connectors to help prevent water
entering the connectors.
Note:
Be sure to take account of the antenna polarization direction; all antennas in
a link must be mounted with the same polarization.
When using the SMC2891W-AN unit with its 5 GHz integrated high-gain antenna,
you will need to accurately align the antenna with another unit in the network to
ensure optimum performance. Proper antenna alignment is particularly important
for long-range point-to-point links.
◆
Point-to-Point Configurations — In a point-to-point configuration the
alignment process requires two people at each end of the link. The use of cell
phones or two-way radio communication may help with coordination. To start,
you can just point the antennas at each other, using binoculars or a compass to
set the general direction. Then you can adjust the horizontal and vertical
position to find the position where the signal is strongest and secure the unit in
that position.
◆
Point-to-Multipoint Configurations — In a point-to-multipoint configuration
all SMC2891W-AN units must be aligned with a central SMC2890W-AN unit that
may be using external omnidirectional or sector antennas. The alignment
process is the same as in point-to-point links, but only the SMC2891W-AN units
require the adjustment for proper alignment.
To start, you can just point the SMC2891W-AN antenna at the central
SMC2890W-AN unit, using binoculars or a compass to set the general direction.
Then you can adjust the horizontal and vertical position to find the position
where the signal is strongest and secure the unit in that position.
Note:
The receive signal strength of the radio signal on the local and remote unit
can be viewed using the CLI or web management interfces. Refer the Management
Guide for further information.
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