Why the distance of Wireless LAN is different between indoor and outdoor?
The working distance for IEEE802.11b Wireless LAN product is quite different in outdoor and indoor. The Indoor range is about 10%-15% of outdoor range. This kind of reduction is a common fact for today´s wireless technology. (for example, the Cisco´s Aironet and Buffalo´s AirStation have the similar reduction on distance between indoor and outdoor) The RF signals will be attenuated as they pass through object such as wall and building. The level of signal attenuated is more difficult to determine since the nature of the wall, building is complex and may be unknown. Normally, additional loss attenuation of 10-20 dB or greater can be experienced as signal transmits through these objects. Also, the desk, cubic, celling and furniture inside the office will affect the RF signal. The complex of directive RF signal and reflective RF signal will reduce the distance. In order to obtain the better distance, user could adjust the relative angle of Access point and Wireless Adapter.
