Wistron Corporation MS2146BG Manual Do Utilizador

best location for access points.

Although access points can transmit signals up to 60 feet away in an area with many 
walled barriers or as much as 500 feet away in a large open area, the  range is affected 
by the following factors:

●     

Building materials, such as steel and drywall, can shorten the range of the radio 
signals.

●     

Physical layout of the area can interfere with the signals and cause them to be 
dropped.

●     

Electronic noise from cell phones, microwave ovens, or other devices on the same 
frequency can interfere with the transmission of the signals.

●     

Range is inversely proportional to data rate, so the faster that the signals are sent, 
the less distance they will travel.

Taking these factors into consideration when you survey the site for your WLAN is key to 
providing all of your users with undisturbed mobile connectivity. Using multiple access 
points will, of course, reduce the impact of these factors if your area has dividing walls 
throughout.

A site survey is an in-depth examination and analysis of a proposed wireless LAN site. 
The purpose of a site survey is to determine the number of access points needed, the 
types of antennas needed, and the best placement for those access points and 
antennas. Although the goal of a site survey is simple, the means of arriving at that goal 
are not. Some of the steps involve taking measurements, but most  involve experience, 
trial and error, and a little guesswork rather than numbers and figures. When to Perform 
a Site Survey Intel® recommends that you perform a site survey prior to installing a 
wireless LAN. Site surveys are especially important when:

●     

You are installing a new site: Evaluate the placement of the access points and 
antennas throughout the proposed site.

●     

You are changing an existing site: When modifying or extending an existing 
network structure, re-evaluate the placement of the access points and antennas. If