Always mount the antennas in an open area for the best signal propagation. Avoid objects that may affect the RF signal. There are a number of objects that can cause interference. Some of the objects that may have a detrimental effect on a signal are shown in Figure .

Avoid the following sources of Electromagnetic Interference (EMI):

• Fluorescent lights and Fusion 2.4-GHz lighting systems
• Microwave ovens
• Air conditioning ductwork
• Other radio equipment

Always attempt to mount the AP and antennas as far away from these items as possible.

RF Propagation

RF propagation is covered in Module 3. Remember the characteristics listed in Figures , , and when performing a site survey.