"Despite the hype, security isn't the only bogey plaguing wireless networks. We tested 12 portable wireless LAN analyzers designed to troubleshoot a wide array of everyday problems at the physical and data-link layers...."
I nice review including some free Open Source tools: http://snipurl.com/wlantool Frank Keeney Antennas, Cables and Equipment: http://www.wlanparts.com Blog: http://www.unwiredadventures.com
