User guide

9
Before You Begin
Perform a Site Survey
Perform a Site Survey
Before installing the Access Point, perform a site survey to determine the optimal Access
Point placement or maximum range, coverage, and network performance. When
performing a site survey, consider the following factors:
■ Data rates: Range is generally inversely proportional to data rates. The maximum radio
range is achieved at the lowest workable data rate. Higher data rates will generally be
achieved at closer distances.
■ Antenna type and placement: Proper antenna configuration is a critical factor in
maximizing radio range. As a general rule, radio range is increased by mounting the
radio higher off of the ground with the Access Point oriented so that the dome is facing
down (for recommended orientation examples, refer to Figure 7
on page 10). If you
are connecting an external antenna (5GHz only) to the Access Point, mount the Access
Point so that the external antenna is pointing down.
■ Physical environment: Clear or open areas provide better radio range than closed or
filled areas. The less cluttered the operating environment, the greater the wireless
range.
■ Obstructions, building materials, and sources of interference: Physical obstructions,
such as concrete pillars, steel beams, filing cabinets, buildings, or trees, can block or
hinder wireless communication. Avoid installing the Access Point in an environment
where there is an obstruction between sending and receiving devices. A number of
machines and electronic devices that emit radio waves – cranes, wireless phones,
microwave ovens, satellite dishes – interfere with and block wireless signals. Building
materials used in construction also influence radio signal penetration. For example,
drywall construction permits greater range than concrete blocks.
For more Access Point placement guidelines, refer to “Determine the Optimal Mounting
Location and Orientation”.