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Toshiba Wireless LAN mini-PCI Card – Getting started 
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The range of the wireless signal is related to the Transmit Rate of the wireless 
communication. Communications at lower Transmit range may travel larger distances. 
 
NOTE: 
The range values listed in Table 4-4 are typical distance as measured at the Toshiba 
Wireless LAN laboratories. These values  may provide a rule of thumb and may vary 
according to the actual radio conditions at the location where the Wireless LAN product 
will be installed. 
n  The range of your wireless devices can be affected when the antennas are placed 
near metal surfaces and solid high-density materials. 
n  Range is also impacted due to “obstacles” in the signal path of the radio that may 
either absorb or reflect the radio signal. 
 
Table 4-4 lists the typical ranges when used indoors in “office environments” that can be 
described as follows: 
n  In  Open Office environments, antennas can  “see” each other, i.e. there are no 
physical obstructions between them. 
n  In Semi-open Office environments, work space is divided by shoulder-height, hollow 
wall elements; antennas are at desktop level. 
n  In  Closed Office environments,  work  space is separated by floor-to-ceiling brick 
walls.