Wireless nets can be easier to set up and can be far more flexible than their wired counterparts. Spread spectrum lessens noise interference and allows data rates to speed up or slow down, depending on the quality of the signal.
Most wireless networks use spread-spectrum signaling to send data between computers.
Distance, walls, ceilings and air conditioning ducts are common enemies of wireless networks and need to be taken into account when designing your system. Most wireless radio frequency products can cope with a limited amount of structural interference such as interior walls and floors, but at some point too many obstructions will choke off signals and slow the system to a crawl. We tested three wireless networks for this article and found two, Proxim's Symphony Cordless ISA CARD System and Diamond's Home Free to be close competitors in performance and features. Both are based on PCI or ISA card technology. We also checked out WebGear's AviatorPro.