George Ou from TechRepublic discuss how to performs wireless LAN site survey using some free and commercial tools.

Topics cover in this includes:

• Physical survey with free software such as NetStumbler.
• Physical survey with commercial software such as AirMagnet Survey
• Radio frequency Spectrum Analyzers
• Strategies for avoiding interference

NetStumbler is a free wireless network discovery tool that runs on Windows-based computers. You can use NetStumbler for site surveys, and it is also a useful tool for detecting unauthorized access points.

For details on how-to, read the good post at Learn to do a wireless LAN site survey (ZDNetAsia)