
Part 1: The Cluttered Wireless 2.4GHz Band
Most of today’s wireless routers support 802.11g (Wireless-G) and many of them start to support 802.11n (Wireless-N) after the specification has been finalized in October, 2009. If you’ve bought a laptop or wireless router after 2009, chances are that they will support 802.11n and 802.11g.
Wireless-G and N can both utilize a common network frequency at 2.4GHz, it’s the same old 2.4GHz that have been used by earlier 802.11 and 802.11b networks, and also by most of the home & office wireless telephones and remote controls.
With so many devices using 2.4GHz in your house, and your neighbors’ surround you, 2.4Ghz networks are extremely cluttered with dozens maybe even hundreds of wireless devices.
