User's Manual

Appendix A. Radio Signal Propagation
BreezeNET DS.11 Series A-11 User’s Guide
• In the center of a corridor.
• At the intersection of two corridors.
Many modern buildings have partitions constructed of metal or containing metal
components. We recommend that you install the Access Points on the corridor
ceilings. The radio waves propagated by the
BreezeNET DS.11
LAN are reflected
along the metal partitions and enter the offices through the doors or glass sections.
1.1.2. Construction Materials
A cell’s coverage area is affected by the construction materials of the walls,
partitions, ceilings, floors and the furnishings of the cell. Due to their intrinsic
nature, these materials may cause radio signal loss:
• Metal objects reflect radio signals. They do not let the signals pass through.
• Wood, glass, plastic and brick reflect part of the radio signals and allow part
of the radio signals to pass through.
• Water and objects with a high moisture content absorb a large part of the radio
signals.
Use the following table as a guidline to predict the effects of different materials.