Wireless Bridge Link Planning
6
Copyright © 2012, Juniper Networks, Inc.
Antenna Polarization
— The WLA622’s integrated antenna sends a radio signal that is
polarized in a particular direction. The antenna’s receive sensitivity is also higher for
radio signals that have the same polarization. To maximize the performance of the
wireless link, both antennas must be set to the same polarization direction. Ideally the
antennas should be pointing upwards mounted on the top part of a pole.
Figure 6–3. Antenna Polarization Markings on the WLA622
WLA Radio Safety Advisories
When you enable the WLA radio(s) as part of WLC configuration, the radios are able to
receive and transmit radio frequency energy as soon as you connect the WLA to the
WLC, either directly or through the network.
Radio Frequency Exposure
Federal Communications Commission (FCC) Docket 96-8 for Spread Spectrum
Transmitters specifies a safety standard for human exposure to radio frequency
electromagnetic energy emitted by FCC-certified equipment. When used with the
proper antennas (shipped in the product), Juniper Networks MP access point products
meet the uncontrolled environmental limits found in OET-65 and ANSI C95.1-1991.
Proper installation of the MP access point according to the instructions in this manual
will result in user exposure that is below the FCC recommended limits.
Additional Radio Safety Advisories
For additional radio safety warnings, the
Juniper Networks
Regulatory Guide
document.